lib-y += make_directory.o
lib-y += makedev.o
lib-y += match_fstype.o
-lib-y += md5.o
+lib-y += hash_md5.o
# Alternative (disabled) implementation
-#lib-y += md5prime.o
+#lib-y += hash_md5prime.o
+lib-y += hash_sha.o
lib-y += messages.o
lib-y += mode_string.o
lib-y += obscure.o
lib-y += safe_strncpy.o
lib-y += safe_write.o
lib-y += setup_environment.o
-lib-y += sha1.o
lib-y += signals.o
lib-y += simplify_path.o
lib-y += single_argv.o
--- /dev/null
+/* vi: set sw=4 ts=4: */
+/*
+ * Compute MD5 checksum of strings according to the
+ * definition of MD5 in RFC 1321 from April 1992.
+ *
+ * Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+ *
+ * Copyright (C) 1995-1999 Free Software Foundation, Inc.
+ * Copyright (C) 2001 Manuel Novoa III
+ * Copyright (C) 2003 Glenn L. McGrath
+ * Copyright (C) 2003 Erik Andersen
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+#include "libbb.h"
+
+/* 0: fastest, 3: smallest */
+#if CONFIG_MD5_SIZE_VS_SPEED < 0
+# define MD5_SIZE_VS_SPEED 0
+#elif CONFIG_MD5_SIZE_VS_SPEED > 3
+# define MD5_SIZE_VS_SPEED 3
+#else
+# define MD5_SIZE_VS_SPEED CONFIG_MD5_SIZE_VS_SPEED
+#endif
+
+/* Initialize structure containing state of computation.
+ * (RFC 1321, 3.3: Step 3)
+ */
+void FAST_FUNC md5_begin(md5_ctx_t *ctx)
+{
+ ctx->A = 0x67452301;
+ ctx->B = 0xefcdab89;
+ ctx->C = 0x98badcfe;
+ ctx->D = 0x10325476;
+ ctx->total64 = 0;
+}
+
+/* These are the four functions used in the four steps of the MD5 algorithm
+ * and defined in the RFC 1321. The first function is a little bit optimized
+ * (as found in Colin Plumbs public domain implementation).
+ * #define FF(b, c, d) ((b & c) | (~b & d))
+ */
+#define FF(b, c, d) (d ^ (b & (c ^ d)))
+#define FG(b, c, d) FF(d, b, c)
+#define FH(b, c, d) (b ^ c ^ d)
+#define FI(b, c, d) (c ^ (b | ~d))
+
+#define rotl32(w, s) (((w) << (s)) | ((w) >> (32 - (s))))
+
+/* Hash a single block, 64 bytes long and 4-byte aligned */
+static void md5_process_block64(md5_ctx_t *ctx)
+{
+#if MD5_SIZE_VS_SPEED > 0
+ /* Before we start, one word to the strange constants.
+ They are defined in RFC 1321 as
+ T[i] = (int)(4294967296.0 * fabs(sin(i))), i=1..64
+ */
+ static const uint32_t C_array[] = {
+ /* round 1 */
+ 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
+ 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
+ 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
+ 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
+ /* round 2 */
+ 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
+ 0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
+ 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
+ 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
+ /* round 3 */
+ 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
+ 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
+ 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x4881d05,
+ 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
+ /* round 4 */
+ 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
+ 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
+ 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
+ 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
+ };
+ static const char P_array[] ALIGN1 = {
+# if MD5_SIZE_VS_SPEED > 1
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 1 */
+# endif
+ 1, 6, 11, 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12, /* 2 */
+ 5, 8, 11, 14, 1, 4, 7, 10, 13, 0, 3, 6, 9, 12, 15, 2, /* 3 */
+ 0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9 /* 4 */
+ };
+#endif
+ uint32_t *words = (void*) ctx->wbuffer;
+ uint32_t A = ctx->A;
+ uint32_t B = ctx->B;
+ uint32_t C = ctx->C;
+ uint32_t D = ctx->D;
+
+#if MD5_SIZE_VS_SPEED >= 2 /* 2 or 3 */
+
+ static const char S_array[] ALIGN1 = {
+ 7, 12, 17, 22,
+ 5, 9, 14, 20,
+ 4, 11, 16, 23,
+ 6, 10, 15, 21
+ };
+ const uint32_t *pc;
+ const char *pp;
+ const char *ps;
+ int i;
+ uint32_t temp;
+
+# if BB_BIG_ENDIAN
+ for (i = 0; i < 16; i++)
+ words[i] = SWAP_LE32(words[i]);
+# endif
+
+# if MD5_SIZE_VS_SPEED == 3
+ pc = C_array;
+ pp = P_array;
+ ps = S_array - 4;
+
+ for (i = 0; i < 64; i++) {
+ if ((i & 0x0f) == 0)
+ ps += 4;
+ temp = A;
+ switch (i >> 4) {
+ case 0:
+ temp += FF(B, C, D);
+ break;
+ case 1:
+ temp += FG(B, C, D);
+ break;
+ case 2:
+ temp += FH(B, C, D);
+ break;
+ case 3:
+ temp += FI(B, C, D);
+ }
+ temp += words[(int) (*pp++)] + *pc++;
+ temp = rotl32(temp, ps[i & 3]);
+ temp += B;
+ A = D;
+ D = C;
+ C = B;
+ B = temp;
+ }
+# else /* MD5_SIZE_VS_SPEED == 2 */
+ pc = C_array;
+ pp = P_array;
+ ps = S_array;
+
+ for (i = 0; i < 16; i++) {
+ temp = A + FF(B, C, D) + words[(int) (*pp++)] + *pc++;
+ temp = rotl32(temp, ps[i & 3]);
+ temp += B;
+ A = D;
+ D = C;
+ C = B;
+ B = temp;
+ }
+ ps += 4;
+ for (i = 0; i < 16; i++) {
+ temp = A + FG(B, C, D) + words[(int) (*pp++)] + *pc++;
+ temp = rotl32(temp, ps[i & 3]);
+ temp += B;
+ A = D;
+ D = C;
+ C = B;
+ B = temp;
+ }
+ ps += 4;
+ for (i = 0; i < 16; i++) {
+ temp = A + FH(B, C, D) + words[(int) (*pp++)] + *pc++;
+ temp = rotl32(temp, ps[i & 3]);
+ temp += B;
+ A = D;
+ D = C;
+ C = B;
+ B = temp;
+ }
+ ps += 4;
+ for (i = 0; i < 16; i++) {
+ temp = A + FI(B, C, D) + words[(int) (*pp++)] + *pc++;
+ temp = rotl32(temp, ps[i & 3]);
+ temp += B;
+ A = D;
+ D = C;
+ C = B;
+ B = temp;
+ }
+# endif
+ /* Add checksum to the starting values */
+ ctx->A += A;
+ ctx->B += B;
+ ctx->C += C;
+ ctx->D += D;
+
+#else /* MD5_SIZE_VS_SPEED == 0 or 1 */
+
+ uint32_t A_save = A;
+ uint32_t B_save = B;
+ uint32_t C_save = C;
+ uint32_t D_save = D;
+# if MD5_SIZE_VS_SPEED == 1
+ const uint32_t *pc;
+ const char *pp;
+ int i;
+# endif
+
+ /* First round: using the given function, the context and a constant
+ the next context is computed. Because the algorithm's processing
+ unit is a 32-bit word and it is determined to work on words in
+ little endian byte order we perhaps have to change the byte order
+ before the computation. To reduce the work for the next steps
+ we save swapped words in WORDS array. */
+# undef OP
+# define OP(a, b, c, d, s, T) \
+ do { \
+ a += FF(b, c, d) + (*words IF_BIG_ENDIAN(= SWAP_LE32(*words))) + T; \
+ words++; \
+ a = rotl32(a, s); \
+ a += b; \
+ } while (0)
+
+ /* Round 1 */
+# if MD5_SIZE_VS_SPEED == 1
+ pc = C_array;
+ for (i = 0; i < 4; i++) {
+ OP(A, B, C, D, 7, *pc++);
+ OP(D, A, B, C, 12, *pc++);
+ OP(C, D, A, B, 17, *pc++);
+ OP(B, C, D, A, 22, *pc++);
+ }
+# else
+ OP(A, B, C, D, 7, 0xd76aa478);
+ OP(D, A, B, C, 12, 0xe8c7b756);
+ OP(C, D, A, B, 17, 0x242070db);
+ OP(B, C, D, A, 22, 0xc1bdceee);
+ OP(A, B, C, D, 7, 0xf57c0faf);
+ OP(D, A, B, C, 12, 0x4787c62a);
+ OP(C, D, A, B, 17, 0xa8304613);
+ OP(B, C, D, A, 22, 0xfd469501);
+ OP(A, B, C, D, 7, 0x698098d8);
+ OP(D, A, B, C, 12, 0x8b44f7af);
+ OP(C, D, A, B, 17, 0xffff5bb1);
+ OP(B, C, D, A, 22, 0x895cd7be);
+ OP(A, B, C, D, 7, 0x6b901122);
+ OP(D, A, B, C, 12, 0xfd987193);
+ OP(C, D, A, B, 17, 0xa679438e);
+ OP(B, C, D, A, 22, 0x49b40821);
+# endif
+ words -= 16;
+
+ /* For the second to fourth round we have the possibly swapped words
+ in WORDS. Redefine the macro to take an additional first
+ argument specifying the function to use. */
+# undef OP
+# define OP(f, a, b, c, d, k, s, T) \
+ do { \
+ a += f(b, c, d) + words[k] + T; \
+ a = rotl32(a, s); \
+ a += b; \
+ } while (0)
+
+ /* Round 2 */
+# if MD5_SIZE_VS_SPEED == 1
+ pp = P_array;
+ for (i = 0; i < 4; i++) {
+ OP(FG, A, B, C, D, (int) (*pp++), 5, *pc++);
+ OP(FG, D, A, B, C, (int) (*pp++), 9, *pc++);
+ OP(FG, C, D, A, B, (int) (*pp++), 14, *pc++);
+ OP(FG, B, C, D, A, (int) (*pp++), 20, *pc++);
+ }
+# else
+ OP(FG, A, B, C, D, 1, 5, 0xf61e2562);
+ OP(FG, D, A, B, C, 6, 9, 0xc040b340);
+ OP(FG, C, D, A, B, 11, 14, 0x265e5a51);
+ OP(FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
+ OP(FG, A, B, C, D, 5, 5, 0xd62f105d);
+ OP(FG, D, A, B, C, 10, 9, 0x02441453);
+ OP(FG, C, D, A, B, 15, 14, 0xd8a1e681);
+ OP(FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
+ OP(FG, A, B, C, D, 9, 5, 0x21e1cde6);
+ OP(FG, D, A, B, C, 14, 9, 0xc33707d6);
+ OP(FG, C, D, A, B, 3, 14, 0xf4d50d87);
+ OP(FG, B, C, D, A, 8, 20, 0x455a14ed);
+ OP(FG, A, B, C, D, 13, 5, 0xa9e3e905);
+ OP(FG, D, A, B, C, 2, 9, 0xfcefa3f8);
+ OP(FG, C, D, A, B, 7, 14, 0x676f02d9);
+ OP(FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
+# endif
+
+ /* Round 3 */
+# if MD5_SIZE_VS_SPEED == 1
+ for (i = 0; i < 4; i++) {
+ OP(FH, A, B, C, D, (int) (*pp++), 4, *pc++);
+ OP(FH, D, A, B, C, (int) (*pp++), 11, *pc++);
+ OP(FH, C, D, A, B, (int) (*pp++), 16, *pc++);
+ OP(FH, B, C, D, A, (int) (*pp++), 23, *pc++);
+ }
+# else
+ OP(FH, A, B, C, D, 5, 4, 0xfffa3942);
+ OP(FH, D, A, B, C, 8, 11, 0x8771f681);
+ OP(FH, C, D, A, B, 11, 16, 0x6d9d6122);
+ OP(FH, B, C, D, A, 14, 23, 0xfde5380c);
+ OP(FH, A, B, C, D, 1, 4, 0xa4beea44);
+ OP(FH, D, A, B, C, 4, 11, 0x4bdecfa9);
+ OP(FH, C, D, A, B, 7, 16, 0xf6bb4b60);
+ OP(FH, B, C, D, A, 10, 23, 0xbebfbc70);
+ OP(FH, A, B, C, D, 13, 4, 0x289b7ec6);
+ OP(FH, D, A, B, C, 0, 11, 0xeaa127fa);
+ OP(FH, C, D, A, B, 3, 16, 0xd4ef3085);
+ OP(FH, B, C, D, A, 6, 23, 0x04881d05);
+ OP(FH, A, B, C, D, 9, 4, 0xd9d4d039);
+ OP(FH, D, A, B, C, 12, 11, 0xe6db99e5);
+ OP(FH, C, D, A, B, 15, 16, 0x1fa27cf8);
+ OP(FH, B, C, D, A, 2, 23, 0xc4ac5665);
+# endif
+
+ /* Round 4 */
+# if MD5_SIZE_VS_SPEED == 1
+ for (i = 0; i < 4; i++) {
+ OP(FI, A, B, C, D, (int) (*pp++), 6, *pc++);
+ OP(FI, D, A, B, C, (int) (*pp++), 10, *pc++);
+ OP(FI, C, D, A, B, (int) (*pp++), 15, *pc++);
+ OP(FI, B, C, D, A, (int) (*pp++), 21, *pc++);
+ }
+# else
+ OP(FI, A, B, C, D, 0, 6, 0xf4292244);
+ OP(FI, D, A, B, C, 7, 10, 0x432aff97);
+ OP(FI, C, D, A, B, 14, 15, 0xab9423a7);
+ OP(FI, B, C, D, A, 5, 21, 0xfc93a039);
+ OP(FI, A, B, C, D, 12, 6, 0x655b59c3);
+ OP(FI, D, A, B, C, 3, 10, 0x8f0ccc92);
+ OP(FI, C, D, A, B, 10, 15, 0xffeff47d);
+ OP(FI, B, C, D, A, 1, 21, 0x85845dd1);
+ OP(FI, A, B, C, D, 8, 6, 0x6fa87e4f);
+ OP(FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
+ OP(FI, C, D, A, B, 6, 15, 0xa3014314);
+ OP(FI, B, C, D, A, 13, 21, 0x4e0811a1);
+ OP(FI, A, B, C, D, 4, 6, 0xf7537e82);
+ OP(FI, D, A, B, C, 11, 10, 0xbd3af235);
+ OP(FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
+ OP(FI, B, C, D, A, 9, 21, 0xeb86d391);
+# endif
+ /* Add checksum to the starting values */
+ ctx->A = A_save + A;
+ ctx->B = B_save + B;
+ ctx->C = C_save + C;
+ ctx->D = D_save + D;
+#endif
+}
+
+/* Feed data through a temporary buffer to call md5_hash_aligned_block()
+ * with chunks of data that are 4-byte aligned and a multiple of 64 bytes.
+ * This function's internal buffer remembers previous data until it has 64
+ * bytes worth to pass on. Call md5_end() to flush this buffer. */
+void FAST_FUNC md5_hash(md5_ctx_t *ctx, const void *buffer, size_t len)
+{
+ unsigned bufpos = ctx->total64 & 63;
+ unsigned remaining;
+
+ /* RFC 1321 specifies the possible length of the file up to 2^64 bits.
+ * Here we only track the number of bytes. */
+ ctx->total64 += len;
+#if 0
+ remaining = 64 - bufpos;
+
+ /* Hash whole blocks */
+ while (len >= remaining) {
+ memcpy(ctx->wbuffer + bufpos, buffer, remaining);
+ buffer = (const char *)buffer + remaining;
+ len -= remaining;
+ remaining = 64;
+ bufpos = 0;
+ md5_process_block64(ctx);
+ }
+
+ /* Save last, partial blosk */
+ memcpy(ctx->wbuffer + bufpos, buffer, len);
+#else
+ /* Tiny bit smaller code */
+ while (1) {
+ remaining = 64 - bufpos;
+ if (remaining > len)
+ remaining = len;
+ /* Copy data into aligned buffer */
+ memcpy(ctx->wbuffer + bufpos, buffer, remaining);
+ len -= remaining;
+ buffer = (const char *)buffer + remaining;
+ bufpos += remaining;
+ /* clever way to do "if (bufpos != 64) break; ... ; bufpos = 0;" */
+ bufpos -= 64;
+ if (bufpos != 0)
+ break;
+ /* Buffer is filled up, process it */
+ md5_process_block64(ctx);
+ /*bufpos = 0; - already is */
+ }
+#endif
+}
+
+/* Process the remaining bytes in the buffer and put result from CTX
+ * in first 16 bytes following RESBUF. The result is always in little
+ * endian byte order, so that a byte-wise output yields to the wanted
+ * ASCII representation of the message digest.
+ */
+void FAST_FUNC md5_end(md5_ctx_t *ctx, void *resbuf)
+{
+ unsigned bufpos = ctx->total64 & 63;
+ /* Pad the buffer to the next 64-byte boundary with 0x80,0,0,0... */
+ ctx->wbuffer[bufpos++] = 0x80;
+
+ /* This loop iterates either once or twice, no more, no less */
+ while (1) {
+ unsigned remaining = 64 - bufpos;
+ memset(ctx->wbuffer + bufpos, 0, remaining);
+ /* Do we have enough space for the length count? */
+ if (remaining >= 8) {
+ /* Store the 64-bit counter of bits in the buffer in BE format */
+ uint64_t t = ctx->total64 << 3;
+ unsigned i;
+ for (i = 0; i < 8; i++) {
+ ctx->wbuffer[56 + i] = t;
+ t >>= 8;
+ }
+ }
+ md5_process_block64(ctx);
+ if (remaining >= 8)
+ break;
+ bufpos = 0;
+ }
+
+ /* The MD5 result is in little endian byte order.
+ * We (ab)use the fact that A-D are consecutive in memory.
+ */
+#if BB_BIG_ENDIAN
+ ctx->A = SWAP_LE32(ctx->A);
+ ctx->B = SWAP_LE32(ctx->B);
+ ctx->C = SWAP_LE32(ctx->C);
+ ctx->D = SWAP_LE32(ctx->D);
+#endif
+ memcpy(resbuf, &ctx->A, sizeof(ctx->A) * 4);
+}
--- /dev/null
+/* This file is not used by busybox right now.
+ * However, the code here seems to be a tiny bit smaller
+ * than one in md5.c. Need to investigate which one
+ * is better overall...
+ * Hint: grep for md5prime to find places where you can switch
+ * md5.c/md5prime.c
+ */
+
+/*
+ * MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
+ *
+ * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
+ * rights reserved.
+ *
+ * License to copy and use this software is granted provided that it
+ * is identified as the "RSA Data Security, Inc. MD5 Message-Digest
+ * Algorithm" in all material mentioning or referencing this software
+ * or this function.
+ *
+ * License is also granted to make and use derivative works provided
+ * that such works are identified as "derived from the RSA Data
+ * Security, Inc. MD5 Message-Digest Algorithm" in all material
+ * mentioning or referencing the derived work.
+ *
+ * RSA Data Security, Inc. makes no representations concerning either
+ * the merchantability of this software or the suitability of this
+ * software for any particular purpose. It is provided "as is"
+ * without express or implied warranty of any kind.
+ *
+ * These notices must be retained in any copies of any part of this
+ * documentation and/or software.
+ *
+ * $FreeBSD: src/lib/libmd/md5c.c,v 1.9.2.1 1999/08/29 14:57:12 peter Exp $
+ *
+ * This code is the same as the code published by RSA Inc. It has been
+ * edited for clarity and style only.
+ *
+ * ----------------------------------------------------------------------------
+ * The md5_crypt() function was taken from freeBSD's libcrypt and contains
+ * this license:
+ * "THE BEER-WARE LICENSE" (Revision 42):
+ * <phk@login.dknet.dk> wrote this file. As long as you retain this notice you
+ * can do whatever you want with this stuff. If we meet some day, and you think
+ * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
+ *
+ * $FreeBSD: src/lib/libcrypt/crypt.c,v 1.7.2.1 1999/08/29 14:56:33 peter Exp $
+ *
+ * ----------------------------------------------------------------------------
+ * On April 19th, 2001 md5_crypt() was modified to make it reentrant
+ * by Erik Andersen <andersen@uclibc.org>
+ *
+ * June 28, 2001 Manuel Novoa III
+ *
+ * "Un-inlined" code using loops and static const tables in order to
+ * reduce generated code size (on i386 from approx 4k to approx 2.5k).
+ *
+ * June 29, 2001 Manuel Novoa III
+ *
+ * Completely removed static PADDING array.
+ *
+ * Reintroduced the loop unrolling in md5_transform and added the
+ * MD5_SIZE_VS_SPEED option for configurability. Define below as:
+ * 0 fully unrolled loops
+ * 1 partially unrolled (4 ops per loop)
+ * 2 no unrolling -- introduces the need to swap 4 variables (slow)
+ * 3 no unrolling and all 4 loops merged into one with switch
+ * in each loop (glacial)
+ * On i386, sizes are roughly (-Os -fno-builtin):
+ * 0: 3k 1: 2.5k 2: 2.2k 3: 2k
+ *
+ * Since SuSv3 does not require crypt_r, modified again August 7, 2002
+ * by Erik Andersen to remove reentrance stuff...
+ */
+
+#include "libbb.h"
+
+/* 1: fastest, 3: smallest */
+#if CONFIG_MD5_SIZE_VS_SPEED < 1
+# define MD5_SIZE_VS_SPEED 1
+#elif CONFIG_MD5_SIZE_VS_SPEED > 3
+# define MD5_SIZE_VS_SPEED 3
+#else
+# define MD5_SIZE_VS_SPEED CONFIG_MD5_SIZE_VS_SPEED
+#endif
+
+#if BB_LITTLE_ENDIAN
+#define memcpy32_cpu2le memcpy
+#define memcpy32_le2cpu memcpy
+#else
+/* Encodes input (uint32_t) into output (unsigned char).
+ * Assumes len is a multiple of 4. */
+static void
+memcpy32_cpu2le(unsigned char *output, uint32_t *input, unsigned len)
+{
+ unsigned i, j;
+ for (i = 0, j = 0; j < len; i++, j += 4) {
+ output[j] = input[i];
+ output[j+1] = (input[i] >> 8);
+ output[j+2] = (input[i] >> 16);
+ output[j+3] = (input[i] >> 24);
+ }
+}
+/* Decodes input (unsigned char) into output (uint32_t).
+ * Assumes len is a multiple of 4. */
+static void
+memcpy32_le2cpu(uint32_t *output, const unsigned char *input, unsigned len)
+{
+ unsigned i, j;
+ for (i = 0, j = 0; j < len; i++, j += 4)
+ output[i] = ((uint32_t)input[j])
+ | (((uint32_t)input[j+1]) << 8)
+ | (((uint32_t)input[j+2]) << 16)
+ | (((uint32_t)input[j+3]) << 24);
+}
+#endif /* i386 */
+
+/* F, G, H and I are basic MD5 functions. */
+#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
+#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
+#define H(x, y, z) ((x) ^ (y) ^ (z))
+#define I(x, y, z) ((y) ^ ((x) | ~(z)))
+
+/* rotl32 rotates x left n bits. */
+#define rotl32(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
+
+/*
+ * FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
+ * Rotation is separate from addition to prevent recomputation.
+ */
+#define FF(a, b, c, d, x, s, ac) { \
+ (a) += F((b), (c), (d)) + (x) + (uint32_t)(ac); \
+ (a) = rotl32((a), (s)); \
+ (a) += (b); \
+ }
+#define GG(a, b, c, d, x, s, ac) { \
+ (a) += G((b), (c), (d)) + (x) + (uint32_t)(ac); \
+ (a) = rotl32((a), (s)); \
+ (a) += (b); \
+ }
+#define HH(a, b, c, d, x, s, ac) { \
+ (a) += H((b), (c), (d)) + (x) + (uint32_t)(ac); \
+ (a) = rotl32((a), (s)); \
+ (a) += (b); \
+ }
+#define II(a, b, c, d, x, s, ac) { \
+ (a) += I((b), (c), (d)) + (x) + (uint32_t)(ac); \
+ (a) = rotl32((a), (s)); \
+ (a) += (b); \
+ }
+
+/* MD5 basic transformation. Transforms state based on block. */
+static void md5_transform(uint32_t state[4], const unsigned char block[64])
+{
+ uint32_t a, b, c, d, x[16];
+#if MD5_SIZE_VS_SPEED > 1
+ uint32_t temp;
+ const unsigned char *ps;
+
+ static const unsigned char S[] = {
+ 7, 12, 17, 22,
+ 5, 9, 14, 20,
+ 4, 11, 16, 23,
+ 6, 10, 15, 21
+ };
+#endif /* MD5_SIZE_VS_SPEED > 1 */
+
+#if MD5_SIZE_VS_SPEED > 0
+ const uint32_t *pc;
+ const unsigned char *pp;
+ int i;
+
+ static const uint32_t C[] = {
+ /* round 1 */
+ 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
+ 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
+ 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
+ 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
+ /* round 2 */
+ 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
+ 0xd62f105d, 0x2441453, 0xd8a1e681, 0xe7d3fbc8,
+ 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
+ 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
+ /* round 3 */
+ 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
+ 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
+ 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x4881d05,
+ 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
+ /* round 4 */
+ 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
+ 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
+ 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
+ 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
+ };
+ static const unsigned char P[] = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 1 */
+ 1, 6, 11, 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12, /* 2 */
+ 5, 8, 11, 14, 1, 4, 7, 10, 13, 0, 3, 6, 9, 12, 15, 2, /* 3 */
+ 0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9 /* 4 */
+ };
+
+#endif /* MD5_SIZE_VS_SPEED > 0 */
+
+ memcpy32_le2cpu(x, block, 64);
+
+ a = state[0];
+ b = state[1];
+ c = state[2];
+ d = state[3];
+
+#if MD5_SIZE_VS_SPEED > 2
+ pc = C;
+ pp = P;
+ ps = S - 4;
+ for (i = 0; i < 64; i++) {
+ if ((i & 0x0f) == 0) ps += 4;
+ temp = a;
+ switch (i>>4) {
+ case 0:
+ temp += F(b, c, d);
+ break;
+ case 1:
+ temp += G(b, c, d);
+ break;
+ case 2:
+ temp += H(b, c, d);
+ break;
+ case 3:
+ temp += I(b, c, d);
+ break;
+ }
+ temp += x[*pp++] + *pc++;
+ temp = rotl32(temp, ps[i & 3]);
+ temp += b;
+ a = d; d = c; c = b; b = temp;
+ }
+#elif MD5_SIZE_VS_SPEED > 1
+ pc = C;
+ pp = P;
+ ps = S;
+ /* Round 1 */
+ for (i = 0; i < 16; i++) {
+ FF(a, b, c, d, x[*pp], ps[i & 0x3], *pc); pp++; pc++;
+ temp = d; d = c; c = b; b = a; a = temp;
+ }
+ /* Round 2 */
+ ps += 4;
+ for (; i < 32; i++) {
+ GG(a, b, c, d, x[*pp], ps[i & 0x3], *pc); pp++; pc++;
+ temp = d; d = c; c = b; b = a; a = temp;
+ }
+ /* Round 3 */
+ ps += 4;
+ for (; i < 48; i++) {
+ HH(a, b, c, d, x[*pp], ps[i & 0x3], *pc); pp++; pc++;
+ temp = d; d = c; c = b; b = a; a = temp;
+ }
+ /* Round 4 */
+ ps += 4;
+ for (; i < 64; i++) {
+ II(a, b, c, d, x[*pp], ps[i & 0x3], *pc); pp++; pc++;
+ temp = d; d = c; c = b; b = a; a = temp;
+ }
+#elif MD5_SIZE_VS_SPEED > 0
+ pc = C;
+ pp = P;
+ /* Round 1 */
+ for (i = 0; i < 4; i++) {
+ FF(a, b, c, d, x[*pp], 7, *pc); pp++; pc++;
+ FF(d, a, b, c, x[*pp], 12, *pc); pp++; pc++;
+ FF(c, d, a, b, x[*pp], 17, *pc); pp++; pc++;
+ FF(b, c, d, a, x[*pp], 22, *pc); pp++; pc++;
+ }
+ /* Round 2 */
+ for (i = 0; i < 4; i++) {
+ GG(a, b, c, d, x[*pp], 5, *pc); pp++; pc++;
+ GG(d, a, b, c, x[*pp], 9, *pc); pp++; pc++;
+ GG(c, d, a, b, x[*pp], 14, *pc); pp++; pc++;
+ GG(b, c, d, a, x[*pp], 20, *pc); pp++; pc++;
+ }
+ /* Round 3 */
+ for (i = 0; i < 4; i++) {
+ HH(a, b, c, d, x[*pp], 4, *pc); pp++; pc++;
+ HH(d, a, b, c, x[*pp], 11, *pc); pp++; pc++;
+ HH(c, d, a, b, x[*pp], 16, *pc); pp++; pc++;
+ HH(b, c, d, a, x[*pp], 23, *pc); pp++; pc++;
+ }
+ /* Round 4 */
+ for (i = 0; i < 4; i++) {
+ II(a, b, c, d, x[*pp], 6, *pc); pp++; pc++;
+ II(d, a, b, c, x[*pp], 10, *pc); pp++; pc++;
+ II(c, d, a, b, x[*pp], 15, *pc); pp++; pc++;
+ II(b, c, d, a, x[*pp], 21, *pc); pp++; pc++;
+ }
+#else
+ /* Round 1 */
+#define S11 7
+#define S12 12
+#define S13 17
+#define S14 22
+ FF(a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
+ FF(d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
+ FF(c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
+ FF(b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
+ FF(a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
+ FF(d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
+ FF(c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
+ FF(b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
+ FF(a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
+ FF(d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
+ FF(c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
+ FF(b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
+ FF(a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
+ FF(d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
+ FF(c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
+ FF(b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
+ /* Round 2 */
+#define S21 5
+#define S22 9
+#define S23 14
+#define S24 20
+ GG(a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
+ GG(d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
+ GG(c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
+ GG(b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
+ GG(a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
+ GG(d, a, b, c, x[10], S22, 0x2441453); /* 22 */
+ GG(c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
+ GG(b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
+ GG(a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
+ GG(d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
+ GG(c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
+ GG(b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
+ GG(a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
+ GG(d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
+ GG(c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
+ GG(b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
+ /* Round 3 */
+#define S31 4
+#define S32 11
+#define S33 16
+#define S34 23
+ HH(a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
+ HH(d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
+ HH(c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
+ HH(b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
+ HH(a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
+ HH(d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
+ HH(c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
+ HH(b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
+ HH(a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
+ HH(d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
+ HH(c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
+ HH(b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
+ HH(a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
+ HH(d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
+ HH(c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
+ HH(b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
+ /* Round 4 */
+#define S41 6
+#define S42 10
+#define S43 15
+#define S44 21
+ II(a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
+ II(d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
+ II(c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
+ II(b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
+ II(a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
+ II(d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
+ II(c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
+ II(b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
+ II(a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
+ II(d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
+ II(c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
+ II(b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
+ II(a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
+ II(d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
+ II(c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
+ II(b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
+#endif
+
+ state[0] += a;
+ state[1] += b;
+ state[2] += c;
+ state[3] += d;
+
+ /* Zeroize sensitive information. */
+ memset(x, 0, sizeof(x));
+}
+
+
+/* MD5 initialization. */
+void FAST_FUNC md5_begin(md5_ctx_t *context)
+{
+ context->count[0] = context->count[1] = 0;
+ /* Load magic initialization constants. */
+ context->state[0] = 0x67452301;
+ context->state[1] = 0xefcdab89;
+ context->state[2] = 0x98badcfe;
+ context->state[3] = 0x10325476;
+}
+
+/*
+ * MD5 block update operation. Continues an MD5 message-digest
+ * operation, processing another message block, and updating
+ * the context.
+ */
+void FAST_FUNC md5_hash(const void *buffer, size_t inputLen, md5_ctx_t *context)
+{
+ unsigned i, idx, partLen;
+ const unsigned char *input = buffer;
+
+ /* Compute number of bytes mod 64 */
+ idx = (context->count[0] >> 3) & 0x3F;
+
+ /* Update number of bits */
+ context->count[0] += (inputLen << 3);
+ if (context->count[0] < (inputLen << 3))
+ context->count[1]++;
+ context->count[1] += (inputLen >> 29);
+
+ /* Transform as many times as possible. */
+ i = 0;
+ partLen = 64 - idx;
+ if (inputLen >= partLen) {
+ memcpy(&context->buffer[idx], input, partLen);
+ md5_transform(context->state, context->buffer);
+ for (i = partLen; i + 63 < inputLen; i += 64)
+ md5_transform(context->state, &input[i]);
+ idx = 0;
+ }
+
+ /* Buffer remaining input */
+ memcpy(&context->buffer[idx], &input[i], inputLen - i);
+}
+
+/*
+ * MD5 finalization. Ends an MD5 message-digest operation,
+ * writing the message digest.
+ */
+void FAST_FUNC md5_end(void *digest, md5_ctx_t *context)
+{
+ unsigned idx, padLen;
+ unsigned char bits[8];
+ unsigned char padding[64];
+
+ /* Add padding followed by original length. */
+ memset(padding, 0, sizeof(padding));
+ padding[0] = 0x80;
+ /* save number of bits */
+ memcpy32_cpu2le(bits, context->count, 8);
+ /* pad out to 56 mod 64 */
+ idx = (context->count[0] >> 3) & 0x3f;
+ padLen = (idx < 56) ? (56 - idx) : (120 - idx);
+ md5_hash(padding, padLen, context);
+ /* append length (before padding) */
+ md5_hash(bits, 8, context);
+
+ /* Store state in digest */
+ memcpy32_cpu2le(digest, context->state, 16);
+}
--- /dev/null
+/* vi: set sw=4 ts=4: */
+/*
+ * Based on shasum from http://www.netsw.org/crypto/hash/
+ * Majorly hacked up to use Dr Brian Gladman's sha1 code
+ *
+ * Copyright (C) 2002 Dr Brian Gladman <brg@gladman.me.uk>, Worcester, UK.
+ * Copyright (C) 2003 Glenn L. McGrath
+ * Copyright (C) 2003 Erik Andersen
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ *
+ * ---------------------------------------------------------------------------
+ * Issue Date: 10/11/2002
+ *
+ * This is a byte oriented version of SHA1 that operates on arrays of bytes
+ * stored in memory. It runs at 22 cycles per byte on a Pentium P4 processor
+ *
+ * ---------------------------------------------------------------------------
+ *
+ * SHA256 and SHA512 parts are:
+ * Released into the Public Domain by Ulrich Drepper <drepper@redhat.com>.
+ * Shrank by Denys Vlasenko.
+ *
+ * ---------------------------------------------------------------------------
+ *
+ * The best way to test random blocksizes is to go to coreutils/md5_sha1_sum.c
+ * and replace "4096" with something like "2000 + time(NULL) % 2097",
+ * then rebuild and compare "shaNNNsum bigfile" results.
+ */
+
+#include "libbb.h"
+
+/* gcc 4.2.1 optimizes rotr64 better with inline than with macro
+ * (for rotX32, there is no difference). Why? My guess is that
+ * macro requires clever common subexpression elimination heuristics
+ * in gcc, while inline basically forces it to happen.
+ */
+//#define rotl32(x,n) (((x) << (n)) | ((x) >> (32 - (n))))
+static ALWAYS_INLINE uint32_t rotl32(uint32_t x, unsigned n)
+{
+ return (x << n) | (x >> (32 - n));
+}
+//#define rotr32(x,n) (((x) >> (n)) | ((x) << (32 - (n))))
+static ALWAYS_INLINE uint32_t rotr32(uint32_t x, unsigned n)
+{
+ return (x >> n) | (x << (32 - n));
+}
+/* rotr64 in needed for sha512 only: */
+//#define rotr64(x,n) (((x) >> (n)) | ((x) << (64 - (n))))
+static ALWAYS_INLINE uint64_t rotr64(uint64_t x, unsigned n)
+{
+ return (x >> n) | (x << (64 - n));
+}
+#if BB_LITTLE_ENDIAN
+/* ALWAYS_INLINE below would hurt code size, using plain inline: */
+static inline uint64_t hton64(uint64_t v)
+{
+ return (((uint64_t)htonl(v)) << 32) | htonl(v >> 32);
+}
+#else
+#define hton64(v) (v)
+#endif
+#define ntoh64(v) hton64(v)
+
+
+/* Some arch headers have conflicting defines */
+#undef ch
+#undef parity
+#undef maj
+#undef rnd
+
+static void FAST_FUNC sha1_process_block64(sha1_ctx_t *ctx)
+{
+ unsigned t;
+ uint32_t W[80], a, b, c, d, e;
+ const uint32_t *words = (uint32_t*) ctx->wbuffer;
+
+ for (t = 0; t < 16; ++t)
+ W[t] = ntohl(words[t]);
+ for (/*t = 16*/; t < 80; ++t) {
+ uint32_t T = W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16];
+ W[t] = rotl32(T, 1);
+ }
+
+ a = ctx->hash[0];
+ b = ctx->hash[1];
+ c = ctx->hash[2];
+ d = ctx->hash[3];
+ e = ctx->hash[4];
+
+/* Reverse byte order in 32-bit words */
+#define ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
+#define parity(x,y,z) ((x) ^ (y) ^ (z))
+#define maj(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
+/* A normal version as set out in the FIPS. This version uses */
+/* partial loop unrolling and is optimised for the Pentium 4 */
+#define rnd(f,k) \
+ do { \
+ uint32_t T = a; \
+ a = rotl32(a, 5) + f(b, c, d) + e + k + W[t]; \
+ e = d; \
+ d = c; \
+ c = rotl32(b, 30); \
+ b = T; \
+ } while (0)
+
+ for (t = 0; t < 20; ++t)
+ rnd(ch, 0x5a827999);
+
+ for (/*t = 20*/; t < 40; ++t)
+ rnd(parity, 0x6ed9eba1);
+
+ for (/*t = 40*/; t < 60; ++t)
+ rnd(maj, 0x8f1bbcdc);
+
+ for (/*t = 60*/; t < 80; ++t)
+ rnd(parity, 0xca62c1d6);
+#undef ch
+#undef parity
+#undef maj
+#undef rnd
+
+ ctx->hash[0] += a;
+ ctx->hash[1] += b;
+ ctx->hash[2] += c;
+ ctx->hash[3] += d;
+ ctx->hash[4] += e;
+}
+
+/* Constants for SHA512 from FIPS 180-2:4.2.3.
+ * SHA256 constants from FIPS 180-2:4.2.2
+ * are the most significant half of first 64 elements
+ * of the same array.
+ */
+static const uint64_t sha_K[80] = {
+ 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
+ 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
+ 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
+ 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
+ 0xd807aa98a3030242ULL, 0x12835b0145706fbeULL,
+ 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
+ 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL,
+ 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
+ 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
+ 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
+ 0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL,
+ 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
+ 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL,
+ 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
+ 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
+ 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
+ 0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL,
+ 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
+ 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL,
+ 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
+ 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
+ 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
+ 0xd192e819d6ef5218ULL, 0xd69906245565a910ULL,
+ 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
+ 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL,
+ 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
+ 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
+ 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
+ 0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL,
+ 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
+ 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL,
+ 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
+ 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, /* [64]+ are used for sha512 only */
+ 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
+ 0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL,
+ 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
+ 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL,
+ 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
+ 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
+ 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
+};
+
+#undef Ch
+#undef Maj
+#undef S0
+#undef S1
+#undef R0
+#undef R1
+
+static void FAST_FUNC sha256_process_block64(sha256_ctx_t *ctx)
+{
+ unsigned t;
+ uint32_t W[64], a, b, c, d, e, f, g, h;
+ const uint32_t *words = (uint32_t*) ctx->wbuffer;
+
+ /* Operators defined in FIPS 180-2:4.1.2. */
+#define Ch(x, y, z) ((x & y) ^ (~x & z))
+#define Maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
+#define S0(x) (rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22))
+#define S1(x) (rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25))
+#define R0(x) (rotr32(x, 7) ^ rotr32(x, 18) ^ (x >> 3))
+#define R1(x) (rotr32(x, 17) ^ rotr32(x, 19) ^ (x >> 10))
+
+ /* Compute the message schedule according to FIPS 180-2:6.2.2 step 2. */
+ for (t = 0; t < 16; ++t)
+ W[t] = ntohl(words[t]);
+ for (/*t = 16*/; t < 64; ++t)
+ W[t] = R1(W[t - 2]) + W[t - 7] + R0(W[t - 15]) + W[t - 16];
+
+ a = ctx->hash[0];
+ b = ctx->hash[1];
+ c = ctx->hash[2];
+ d = ctx->hash[3];
+ e = ctx->hash[4];
+ f = ctx->hash[5];
+ g = ctx->hash[6];
+ h = ctx->hash[7];
+
+ /* The actual computation according to FIPS 180-2:6.2.2 step 3. */
+ for (t = 0; t < 64; ++t) {
+ /* Need to fetch upper half of sha_K[t]
+ * (I hope compiler is clever enough to just fetch
+ * upper half)
+ */
+ uint32_t K_t = sha_K[t] >> 32;
+ uint32_t T1 = h + S1(e) + Ch(e, f, g) + K_t + W[t];
+ uint32_t T2 = S0(a) + Maj(a, b, c);
+ h = g;
+ g = f;
+ f = e;
+ e = d + T1;
+ d = c;
+ c = b;
+ b = a;
+ a = T1 + T2;
+ }
+#undef Ch
+#undef Maj
+#undef S0
+#undef S1
+#undef R0
+#undef R1
+ /* Add the starting values of the context according to FIPS 180-2:6.2.2
+ step 4. */
+ ctx->hash[0] += a;
+ ctx->hash[1] += b;
+ ctx->hash[2] += c;
+ ctx->hash[3] += d;
+ ctx->hash[4] += e;
+ ctx->hash[5] += f;
+ ctx->hash[6] += g;
+ ctx->hash[7] += h;
+}
+
+static void FAST_FUNC sha512_process_block128(sha512_ctx_t *ctx)
+{
+ unsigned t;
+ uint64_t W[80];
+ /* On i386, having assignments here (not later as sha256 does)
+ * produces 99 bytes smaller code with gcc 4.3.1
+ */
+ uint64_t a = ctx->hash[0];
+ uint64_t b = ctx->hash[1];
+ uint64_t c = ctx->hash[2];
+ uint64_t d = ctx->hash[3];
+ uint64_t e = ctx->hash[4];
+ uint64_t f = ctx->hash[5];
+ uint64_t g = ctx->hash[6];
+ uint64_t h = ctx->hash[7];
+ const uint64_t *words = (uint64_t*) ctx->wbuffer;
+
+ /* Operators defined in FIPS 180-2:4.1.2. */
+#define Ch(x, y, z) ((x & y) ^ (~x & z))
+#define Maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
+#define S0(x) (rotr64(x, 28) ^ rotr64(x, 34) ^ rotr64(x, 39))
+#define S1(x) (rotr64(x, 14) ^ rotr64(x, 18) ^ rotr64(x, 41))
+#define R0(x) (rotr64(x, 1) ^ rotr64(x, 8) ^ (x >> 7))
+#define R1(x) (rotr64(x, 19) ^ rotr64(x, 61) ^ (x >> 6))
+
+ /* Compute the message schedule according to FIPS 180-2:6.3.2 step 2. */
+ for (t = 0; t < 16; ++t)
+ W[t] = ntoh64(words[t]);
+ for (/*t = 16*/; t < 80; ++t)
+ W[t] = R1(W[t - 2]) + W[t - 7] + R0(W[t - 15]) + W[t - 16];
+
+ /* The actual computation according to FIPS 180-2:6.3.2 step 3. */
+ for (t = 0; t < 80; ++t) {
+ uint64_t T1 = h + S1(e) + Ch(e, f, g) + sha_K[t] + W[t];
+ uint64_t T2 = S0(a) + Maj(a, b, c);
+ h = g;
+ g = f;
+ f = e;
+ e = d + T1;
+ d = c;
+ c = b;
+ b = a;
+ a = T1 + T2;
+ }
+#undef Ch
+#undef Maj
+#undef S0
+#undef S1
+#undef R0
+#undef R1
+ /* Add the starting values of the context according to FIPS 180-2:6.3.2
+ step 4. */
+ ctx->hash[0] += a;
+ ctx->hash[1] += b;
+ ctx->hash[2] += c;
+ ctx->hash[3] += d;
+ ctx->hash[4] += e;
+ ctx->hash[5] += f;
+ ctx->hash[6] += g;
+ ctx->hash[7] += h;
+}
+
+
+void FAST_FUNC sha1_begin(sha1_ctx_t *ctx)
+{
+ ctx->hash[0] = 0x67452301;
+ ctx->hash[1] = 0xefcdab89;
+ ctx->hash[2] = 0x98badcfe;
+ ctx->hash[3] = 0x10325476;
+ ctx->hash[4] = 0xc3d2e1f0;
+ ctx->total64 = 0;
+ ctx->process_block = sha1_process_block64;
+}
+
+static const uint32_t init256[] = {
+ 0x6a09e667,
+ 0xbb67ae85,
+ 0x3c6ef372,
+ 0xa54ff53a,
+ 0x510e527f,
+ 0x9b05688c,
+ 0x1f83d9ab,
+ 0x5be0cd19,
+ 0,
+ 0,
+};
+static const uint32_t init512_lo[] = {
+ 0xf3bcc908,
+ 0x84caa73b,
+ 0xfe94f82b,
+ 0x5f1d36f1,
+ 0xade682d1,
+ 0x2b3e6c1f,
+ 0xfb41bd6b,
+ 0x137e2179,
+ 0,
+ 0,
+};
+
+/* Initialize structure containing state of computation.
+ (FIPS 180-2:5.3.2) */
+void FAST_FUNC sha256_begin(sha256_ctx_t *ctx)
+{
+ memcpy(ctx->hash, init256, sizeof(init256));
+ /*ctx->total64 = 0; - done by extending init256 with two 32-bit zeros */
+ ctx->process_block = sha256_process_block64;
+}
+
+/* Initialize structure containing state of computation.
+ (FIPS 180-2:5.3.3) */
+void FAST_FUNC sha512_begin(sha512_ctx_t *ctx)
+{
+ int i;
+ /* Two extra iterations zero out ctx->total64[] */
+ for (i = 0; i < 8+2; i++)
+ ctx->hash[i] = ((uint64_t)(init256[i]) << 32) + init512_lo[i];
+ /*ctx->total64[0] = ctx->total64[1] = 0; - already done */
+}
+
+
+/* Used also for sha256 */
+void FAST_FUNC sha1_hash(sha1_ctx_t *ctx, const void *buffer, size_t len)
+{
+ unsigned bufpos = ctx->total64 & 63;
+ unsigned remaining;
+
+ ctx->total64 += len;
+#if 0
+ remaining = 64 - bufpos;
+
+ /* Hash whole blocks */
+ while (len >= remaining) {
+ memcpy(ctx->wbuffer + bufpos, buffer, remaining);
+ buffer = (const char *)buffer + remaining;
+ len -= remaining;
+ remaining = 64;
+ bufpos = 0;
+ ctx->process_block(ctx);
+ }
+
+ /* Save last, partial blosk */
+ memcpy(ctx->wbuffer + bufpos, buffer, len);
+#else
+ /* Tiny bit smaller code */
+ while (1) {
+ remaining = 64 - bufpos;
+ if (remaining > len)
+ remaining = len;
+ /* Copy data into aligned buffer */
+ memcpy(ctx->wbuffer + bufpos, buffer, remaining);
+ len -= remaining;
+ buffer = (const char *)buffer + remaining;
+ bufpos += remaining;
+ /* clever way to do "if (bufpos != 64) break; ... ; bufpos = 0;" */
+ bufpos -= 64;
+ if (bufpos != 0)
+ break;
+ /* Buffer is filled up, process it */
+ ctx->process_block(ctx);
+ /*bufpos = 0; - already is */
+ }
+#endif
+}
+
+void FAST_FUNC sha512_hash(sha512_ctx_t *ctx, const void *buffer, size_t len)
+{
+ unsigned bufpos = ctx->total64[0] & 127;
+ unsigned remaining;
+
+ /* First increment the byte count. FIPS 180-2 specifies the possible
+ length of the file up to 2^128 _bits_.
+ We compute the number of _bytes_ and convert to bits later. */
+ ctx->total64[0] += len;
+ if (ctx->total64[0] < len)
+ ctx->total64[1]++;
+#if 0
+ remaining = 128 - bufpos;
+
+ /* Hash whole blocks */
+ while (len >= remaining) {
+ memcpy(ctx->wbuffer + bufpos, buffer, remaining);
+ buffer = (const char *)buffer + remaining;
+ len -= remaining;
+ remaining = 128;
+ bufpos = 0;
+ sha512_process_block128(ctx);
+ }
+
+ /* Save last, partial blosk */
+ memcpy(ctx->wbuffer + bufpos, buffer, len);
+#else
+ while (1) {
+ remaining = 128 - bufpos;
+ if (remaining > len)
+ remaining = len;
+ /* Copy data into aligned buffer */
+ memcpy(ctx->wbuffer + bufpos, buffer, remaining);
+ len -= remaining;
+ buffer = (const char *)buffer + remaining;
+ bufpos += remaining;
+ /* clever way to do "if (bufpos != 128) break; ... ; bufpos = 0;" */
+ bufpos -= 128;
+ if (bufpos != 0)
+ break;
+ /* Buffer is filled up, process it */
+ sha512_process_block128(ctx);
+ /*bufpos = 0; - already is */
+ }
+#endif
+}
+
+
+/* Used also for sha256 */
+void FAST_FUNC sha1_end(sha1_ctx_t *ctx, void *resbuf)
+{
+ unsigned bufpos = ctx->total64 & 63;
+
+ /* Pad the buffer to the next 64-byte boundary with 0x80,0,0,0... */
+ ctx->wbuffer[bufpos++] = 0x80;
+
+ /* This loop iterates either once or twice, no more, no less */
+ while (1) {
+ unsigned remaining = 64 - bufpos;
+ memset(ctx->wbuffer + bufpos, 0, remaining);
+ /* Do we have enough space for the length count? */
+ if (remaining >= 8) {
+ /* Store the 64-bit counter of bits in the buffer in BE format */
+ uint64_t t = ctx->total64 << 3;
+ t = hton64(t);
+ /* wbuffer is suitably aligned for this */
+ *(uint64_t *) (&ctx->wbuffer[64 - 8]) = t;
+ }
+ ctx->process_block(ctx);
+ if (remaining >= 8)
+ break;
+ bufpos = 0;
+ }
+
+ bufpos = (ctx->process_block == sha1_process_block64) ? 5 : 8;
+ /* This way we do not impose alignment constraints on resbuf: */
+ if (BB_LITTLE_ENDIAN) {
+ unsigned i;
+ for (i = 0; i < bufpos; ++i)
+ ctx->hash[i] = htonl(ctx->hash[i]);
+ }
+ memcpy(resbuf, ctx->hash, sizeof(ctx->hash[0]) * bufpos);
+}
+
+void FAST_FUNC sha512_end(sha512_ctx_t *ctx, void *resbuf)
+{
+ unsigned bufpos = ctx->total64[0] & 127;
+
+ /* Pad the buffer to the next 128-byte boundary with 0x80,0,0,0... */
+ ctx->wbuffer[bufpos++] = 0x80;
+
+ while (1) {
+ unsigned remaining = 128 - bufpos;
+ memset(ctx->wbuffer + bufpos, 0, remaining);
+ if (remaining >= 16) {
+ /* Store the 128-bit counter of bits in the buffer in BE format */
+ uint64_t t;
+ t = ctx->total64[0] << 3;
+ t = hton64(t);
+ *(uint64_t *) (&ctx->wbuffer[128 - 8]) = t;
+ t = (ctx->total64[1] << 3) | (ctx->total64[0] >> 61);
+ t = hton64(t);
+ *(uint64_t *) (&ctx->wbuffer[128 - 16]) = t;
+ }
+ sha512_process_block128(ctx);
+ if (remaining >= 16)
+ break;
+ bufpos = 0;
+ }
+
+ if (BB_LITTLE_ENDIAN) {
+ unsigned i;
+ for (i = 0; i < ARRAY_SIZE(ctx->hash); ++i)
+ ctx->hash[i] = hton64(ctx->hash[i]);
+ }
+ memcpy(resbuf, ctx->hash, sizeof(ctx->hash));
+}
+++ /dev/null
-/* vi: set sw=4 ts=4: */
-/*
- * Compute MD5 checksum of strings according to the
- * definition of MD5 in RFC 1321 from April 1992.
- *
- * Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
- *
- * Copyright (C) 1995-1999 Free Software Foundation, Inc.
- * Copyright (C) 2001 Manuel Novoa III
- * Copyright (C) 2003 Glenn L. McGrath
- * Copyright (C) 2003 Erik Andersen
- *
- * Licensed under GPLv2 or later, see file LICENSE in this source tree.
- */
-
-#include "libbb.h"
-
-/* 0: fastest, 3: smallest */
-#if CONFIG_MD5_SIZE_VS_SPEED < 0
-# define MD5_SIZE_VS_SPEED 0
-#elif CONFIG_MD5_SIZE_VS_SPEED > 3
-# define MD5_SIZE_VS_SPEED 3
-#else
-# define MD5_SIZE_VS_SPEED CONFIG_MD5_SIZE_VS_SPEED
-#endif
-
-/* Initialize structure containing state of computation.
- * (RFC 1321, 3.3: Step 3)
- */
-void FAST_FUNC md5_begin(md5_ctx_t *ctx)
-{
- ctx->A = 0x67452301;
- ctx->B = 0xefcdab89;
- ctx->C = 0x98badcfe;
- ctx->D = 0x10325476;
- ctx->total64 = 0;
-}
-
-/* These are the four functions used in the four steps of the MD5 algorithm
- * and defined in the RFC 1321. The first function is a little bit optimized
- * (as found in Colin Plumbs public domain implementation).
- * #define FF(b, c, d) ((b & c) | (~b & d))
- */
-#define FF(b, c, d) (d ^ (b & (c ^ d)))
-#define FG(b, c, d) FF(d, b, c)
-#define FH(b, c, d) (b ^ c ^ d)
-#define FI(b, c, d) (c ^ (b | ~d))
-
-#define rotl32(w, s) (((w) << (s)) | ((w) >> (32 - (s))))
-
-/* Hash a single block, 64 bytes long and 4-byte aligned */
-static void md5_process_block64(md5_ctx_t *ctx)
-{
-#if MD5_SIZE_VS_SPEED > 0
- /* Before we start, one word to the strange constants.
- They are defined in RFC 1321 as
- T[i] = (int)(4294967296.0 * fabs(sin(i))), i=1..64
- */
- static const uint32_t C_array[] = {
- /* round 1 */
- 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
- 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
- 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
- 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
- /* round 2 */
- 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
- 0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
- 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
- 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
- /* round 3 */
- 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
- 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
- 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x4881d05,
- 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
- /* round 4 */
- 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
- 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
- 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
- 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
- };
- static const char P_array[] ALIGN1 = {
-# if MD5_SIZE_VS_SPEED > 1
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 1 */
-# endif
- 1, 6, 11, 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12, /* 2 */
- 5, 8, 11, 14, 1, 4, 7, 10, 13, 0, 3, 6, 9, 12, 15, 2, /* 3 */
- 0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9 /* 4 */
- };
-#endif
- uint32_t *words = (void*) ctx->wbuffer;
- uint32_t A = ctx->A;
- uint32_t B = ctx->B;
- uint32_t C = ctx->C;
- uint32_t D = ctx->D;
-
-#if MD5_SIZE_VS_SPEED >= 2 /* 2 or 3 */
-
- static const char S_array[] ALIGN1 = {
- 7, 12, 17, 22,
- 5, 9, 14, 20,
- 4, 11, 16, 23,
- 6, 10, 15, 21
- };
- const uint32_t *pc;
- const char *pp;
- const char *ps;
- int i;
- uint32_t temp;
-
-# if BB_BIG_ENDIAN
- for (i = 0; i < 16; i++)
- words[i] = SWAP_LE32(words[i]);
-# endif
-
-# if MD5_SIZE_VS_SPEED == 3
- pc = C_array;
- pp = P_array;
- ps = S_array - 4;
-
- for (i = 0; i < 64; i++) {
- if ((i & 0x0f) == 0)
- ps += 4;
- temp = A;
- switch (i >> 4) {
- case 0:
- temp += FF(B, C, D);
- break;
- case 1:
- temp += FG(B, C, D);
- break;
- case 2:
- temp += FH(B, C, D);
- break;
- case 3:
- temp += FI(B, C, D);
- }
- temp += words[(int) (*pp++)] + *pc++;
- temp = rotl32(temp, ps[i & 3]);
- temp += B;
- A = D;
- D = C;
- C = B;
- B = temp;
- }
-# else /* MD5_SIZE_VS_SPEED == 2 */
- pc = C_array;
- pp = P_array;
- ps = S_array;
-
- for (i = 0; i < 16; i++) {
- temp = A + FF(B, C, D) + words[(int) (*pp++)] + *pc++;
- temp = rotl32(temp, ps[i & 3]);
- temp += B;
- A = D;
- D = C;
- C = B;
- B = temp;
- }
- ps += 4;
- for (i = 0; i < 16; i++) {
- temp = A + FG(B, C, D) + words[(int) (*pp++)] + *pc++;
- temp = rotl32(temp, ps[i & 3]);
- temp += B;
- A = D;
- D = C;
- C = B;
- B = temp;
- }
- ps += 4;
- for (i = 0; i < 16; i++) {
- temp = A + FH(B, C, D) + words[(int) (*pp++)] + *pc++;
- temp = rotl32(temp, ps[i & 3]);
- temp += B;
- A = D;
- D = C;
- C = B;
- B = temp;
- }
- ps += 4;
- for (i = 0; i < 16; i++) {
- temp = A + FI(B, C, D) + words[(int) (*pp++)] + *pc++;
- temp = rotl32(temp, ps[i & 3]);
- temp += B;
- A = D;
- D = C;
- C = B;
- B = temp;
- }
-# endif
- /* Add checksum to the starting values */
- ctx->A += A;
- ctx->B += B;
- ctx->C += C;
- ctx->D += D;
-
-#else /* MD5_SIZE_VS_SPEED == 0 or 1 */
-
- uint32_t A_save = A;
- uint32_t B_save = B;
- uint32_t C_save = C;
- uint32_t D_save = D;
-# if MD5_SIZE_VS_SPEED == 1
- const uint32_t *pc;
- const char *pp;
- int i;
-# endif
-
- /* First round: using the given function, the context and a constant
- the next context is computed. Because the algorithm's processing
- unit is a 32-bit word and it is determined to work on words in
- little endian byte order we perhaps have to change the byte order
- before the computation. To reduce the work for the next steps
- we save swapped words in WORDS array. */
-# undef OP
-# define OP(a, b, c, d, s, T) \
- do { \
- a += FF(b, c, d) + (*words IF_BIG_ENDIAN(= SWAP_LE32(*words))) + T; \
- words++; \
- a = rotl32(a, s); \
- a += b; \
- } while (0)
-
- /* Round 1 */
-# if MD5_SIZE_VS_SPEED == 1
- pc = C_array;
- for (i = 0; i < 4; i++) {
- OP(A, B, C, D, 7, *pc++);
- OP(D, A, B, C, 12, *pc++);
- OP(C, D, A, B, 17, *pc++);
- OP(B, C, D, A, 22, *pc++);
- }
-# else
- OP(A, B, C, D, 7, 0xd76aa478);
- OP(D, A, B, C, 12, 0xe8c7b756);
- OP(C, D, A, B, 17, 0x242070db);
- OP(B, C, D, A, 22, 0xc1bdceee);
- OP(A, B, C, D, 7, 0xf57c0faf);
- OP(D, A, B, C, 12, 0x4787c62a);
- OP(C, D, A, B, 17, 0xa8304613);
- OP(B, C, D, A, 22, 0xfd469501);
- OP(A, B, C, D, 7, 0x698098d8);
- OP(D, A, B, C, 12, 0x8b44f7af);
- OP(C, D, A, B, 17, 0xffff5bb1);
- OP(B, C, D, A, 22, 0x895cd7be);
- OP(A, B, C, D, 7, 0x6b901122);
- OP(D, A, B, C, 12, 0xfd987193);
- OP(C, D, A, B, 17, 0xa679438e);
- OP(B, C, D, A, 22, 0x49b40821);
-# endif
- words -= 16;
-
- /* For the second to fourth round we have the possibly swapped words
- in WORDS. Redefine the macro to take an additional first
- argument specifying the function to use. */
-# undef OP
-# define OP(f, a, b, c, d, k, s, T) \
- do { \
- a += f(b, c, d) + words[k] + T; \
- a = rotl32(a, s); \
- a += b; \
- } while (0)
-
- /* Round 2 */
-# if MD5_SIZE_VS_SPEED == 1
- pp = P_array;
- for (i = 0; i < 4; i++) {
- OP(FG, A, B, C, D, (int) (*pp++), 5, *pc++);
- OP(FG, D, A, B, C, (int) (*pp++), 9, *pc++);
- OP(FG, C, D, A, B, (int) (*pp++), 14, *pc++);
- OP(FG, B, C, D, A, (int) (*pp++), 20, *pc++);
- }
-# else
- OP(FG, A, B, C, D, 1, 5, 0xf61e2562);
- OP(FG, D, A, B, C, 6, 9, 0xc040b340);
- OP(FG, C, D, A, B, 11, 14, 0x265e5a51);
- OP(FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
- OP(FG, A, B, C, D, 5, 5, 0xd62f105d);
- OP(FG, D, A, B, C, 10, 9, 0x02441453);
- OP(FG, C, D, A, B, 15, 14, 0xd8a1e681);
- OP(FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
- OP(FG, A, B, C, D, 9, 5, 0x21e1cde6);
- OP(FG, D, A, B, C, 14, 9, 0xc33707d6);
- OP(FG, C, D, A, B, 3, 14, 0xf4d50d87);
- OP(FG, B, C, D, A, 8, 20, 0x455a14ed);
- OP(FG, A, B, C, D, 13, 5, 0xa9e3e905);
- OP(FG, D, A, B, C, 2, 9, 0xfcefa3f8);
- OP(FG, C, D, A, B, 7, 14, 0x676f02d9);
- OP(FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
-# endif
-
- /* Round 3 */
-# if MD5_SIZE_VS_SPEED == 1
- for (i = 0; i < 4; i++) {
- OP(FH, A, B, C, D, (int) (*pp++), 4, *pc++);
- OP(FH, D, A, B, C, (int) (*pp++), 11, *pc++);
- OP(FH, C, D, A, B, (int) (*pp++), 16, *pc++);
- OP(FH, B, C, D, A, (int) (*pp++), 23, *pc++);
- }
-# else
- OP(FH, A, B, C, D, 5, 4, 0xfffa3942);
- OP(FH, D, A, B, C, 8, 11, 0x8771f681);
- OP(FH, C, D, A, B, 11, 16, 0x6d9d6122);
- OP(FH, B, C, D, A, 14, 23, 0xfde5380c);
- OP(FH, A, B, C, D, 1, 4, 0xa4beea44);
- OP(FH, D, A, B, C, 4, 11, 0x4bdecfa9);
- OP(FH, C, D, A, B, 7, 16, 0xf6bb4b60);
- OP(FH, B, C, D, A, 10, 23, 0xbebfbc70);
- OP(FH, A, B, C, D, 13, 4, 0x289b7ec6);
- OP(FH, D, A, B, C, 0, 11, 0xeaa127fa);
- OP(FH, C, D, A, B, 3, 16, 0xd4ef3085);
- OP(FH, B, C, D, A, 6, 23, 0x04881d05);
- OP(FH, A, B, C, D, 9, 4, 0xd9d4d039);
- OP(FH, D, A, B, C, 12, 11, 0xe6db99e5);
- OP(FH, C, D, A, B, 15, 16, 0x1fa27cf8);
- OP(FH, B, C, D, A, 2, 23, 0xc4ac5665);
-# endif
-
- /* Round 4 */
-# if MD5_SIZE_VS_SPEED == 1
- for (i = 0; i < 4; i++) {
- OP(FI, A, B, C, D, (int) (*pp++), 6, *pc++);
- OP(FI, D, A, B, C, (int) (*pp++), 10, *pc++);
- OP(FI, C, D, A, B, (int) (*pp++), 15, *pc++);
- OP(FI, B, C, D, A, (int) (*pp++), 21, *pc++);
- }
-# else
- OP(FI, A, B, C, D, 0, 6, 0xf4292244);
- OP(FI, D, A, B, C, 7, 10, 0x432aff97);
- OP(FI, C, D, A, B, 14, 15, 0xab9423a7);
- OP(FI, B, C, D, A, 5, 21, 0xfc93a039);
- OP(FI, A, B, C, D, 12, 6, 0x655b59c3);
- OP(FI, D, A, B, C, 3, 10, 0x8f0ccc92);
- OP(FI, C, D, A, B, 10, 15, 0xffeff47d);
- OP(FI, B, C, D, A, 1, 21, 0x85845dd1);
- OP(FI, A, B, C, D, 8, 6, 0x6fa87e4f);
- OP(FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
- OP(FI, C, D, A, B, 6, 15, 0xa3014314);
- OP(FI, B, C, D, A, 13, 21, 0x4e0811a1);
- OP(FI, A, B, C, D, 4, 6, 0xf7537e82);
- OP(FI, D, A, B, C, 11, 10, 0xbd3af235);
- OP(FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
- OP(FI, B, C, D, A, 9, 21, 0xeb86d391);
-# endif
- /* Add checksum to the starting values */
- ctx->A = A_save + A;
- ctx->B = B_save + B;
- ctx->C = C_save + C;
- ctx->D = D_save + D;
-#endif
-}
-
-/* Feed data through a temporary buffer to call md5_hash_aligned_block()
- * with chunks of data that are 4-byte aligned and a multiple of 64 bytes.
- * This function's internal buffer remembers previous data until it has 64
- * bytes worth to pass on. Call md5_end() to flush this buffer. */
-void FAST_FUNC md5_hash(md5_ctx_t *ctx, const void *buffer, size_t len)
-{
- unsigned bufpos = ctx->total64 & 63;
- unsigned remaining;
-
- /* RFC 1321 specifies the possible length of the file up to 2^64 bits.
- * Here we only track the number of bytes. */
- ctx->total64 += len;
-#if 0
- remaining = 64 - bufpos;
-
- /* Hash whole blocks */
- while (len >= remaining) {
- memcpy(ctx->wbuffer + bufpos, buffer, remaining);
- buffer = (const char *)buffer + remaining;
- len -= remaining;
- remaining = 64;
- bufpos = 0;
- md5_process_block64(ctx);
- }
-
- /* Save last, partial blosk */
- memcpy(ctx->wbuffer + bufpos, buffer, len);
-#else
- /* Tiny bit smaller code */
- while (1) {
- remaining = 64 - bufpos;
- if (remaining > len)
- remaining = len;
- /* Copy data into aligned buffer */
- memcpy(ctx->wbuffer + bufpos, buffer, remaining);
- len -= remaining;
- buffer = (const char *)buffer + remaining;
- bufpos += remaining;
- /* clever way to do "if (bufpos != 64) break; ... ; bufpos = 0;" */
- bufpos -= 64;
- if (bufpos != 0)
- break;
- /* Buffer is filled up, process it */
- md5_process_block64(ctx);
- /*bufpos = 0; - already is */
- }
-#endif
-}
-
-/* Process the remaining bytes in the buffer and put result from CTX
- * in first 16 bytes following RESBUF. The result is always in little
- * endian byte order, so that a byte-wise output yields to the wanted
- * ASCII representation of the message digest.
- */
-void FAST_FUNC md5_end(md5_ctx_t *ctx, void *resbuf)
-{
- unsigned bufpos = ctx->total64 & 63;
- /* Pad the buffer to the next 64-byte boundary with 0x80,0,0,0... */
- ctx->wbuffer[bufpos++] = 0x80;
-
- /* This loop iterates either once or twice, no more, no less */
- while (1) {
- unsigned remaining = 64 - bufpos;
- memset(ctx->wbuffer + bufpos, 0, remaining);
- /* Do we have enough space for the length count? */
- if (remaining >= 8) {
- /* Store the 64-bit counter of bits in the buffer in BE format */
- uint64_t t = ctx->total64 << 3;
- unsigned i;
- for (i = 0; i < 8; i++) {
- ctx->wbuffer[56 + i] = t;
- t >>= 8;
- }
- }
- md5_process_block64(ctx);
- if (remaining >= 8)
- break;
- bufpos = 0;
- }
-
- /* The MD5 result is in little endian byte order.
- * We (ab)use the fact that A-D are consecutive in memory.
- */
-#if BB_BIG_ENDIAN
- ctx->A = SWAP_LE32(ctx->A);
- ctx->B = SWAP_LE32(ctx->B);
- ctx->C = SWAP_LE32(ctx->C);
- ctx->D = SWAP_LE32(ctx->D);
-#endif
- memcpy(resbuf, &ctx->A, sizeof(ctx->A) * 4);
-}
+++ /dev/null
-/* This file is not used by busybox right now.
- * However, the code here seems to be a tiny bit smaller
- * than one in md5.c. Need to investigate which one
- * is better overall...
- * Hint: grep for md5prime to find places where you can switch
- * md5.c/md5prime.c
- */
-
-/*
- * MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
- *
- * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
- * rights reserved.
- *
- * License to copy and use this software is granted provided that it
- * is identified as the "RSA Data Security, Inc. MD5 Message-Digest
- * Algorithm" in all material mentioning or referencing this software
- * or this function.
- *
- * License is also granted to make and use derivative works provided
- * that such works are identified as "derived from the RSA Data
- * Security, Inc. MD5 Message-Digest Algorithm" in all material
- * mentioning or referencing the derived work.
- *
- * RSA Data Security, Inc. makes no representations concerning either
- * the merchantability of this software or the suitability of this
- * software for any particular purpose. It is provided "as is"
- * without express or implied warranty of any kind.
- *
- * These notices must be retained in any copies of any part of this
- * documentation and/or software.
- *
- * $FreeBSD: src/lib/libmd/md5c.c,v 1.9.2.1 1999/08/29 14:57:12 peter Exp $
- *
- * This code is the same as the code published by RSA Inc. It has been
- * edited for clarity and style only.
- *
- * ----------------------------------------------------------------------------
- * The md5_crypt() function was taken from freeBSD's libcrypt and contains
- * this license:
- * "THE BEER-WARE LICENSE" (Revision 42):
- * <phk@login.dknet.dk> wrote this file. As long as you retain this notice you
- * can do whatever you want with this stuff. If we meet some day, and you think
- * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
- *
- * $FreeBSD: src/lib/libcrypt/crypt.c,v 1.7.2.1 1999/08/29 14:56:33 peter Exp $
- *
- * ----------------------------------------------------------------------------
- * On April 19th, 2001 md5_crypt() was modified to make it reentrant
- * by Erik Andersen <andersen@uclibc.org>
- *
- * June 28, 2001 Manuel Novoa III
- *
- * "Un-inlined" code using loops and static const tables in order to
- * reduce generated code size (on i386 from approx 4k to approx 2.5k).
- *
- * June 29, 2001 Manuel Novoa III
- *
- * Completely removed static PADDING array.
- *
- * Reintroduced the loop unrolling in md5_transform and added the
- * MD5_SIZE_VS_SPEED option for configurability. Define below as:
- * 0 fully unrolled loops
- * 1 partially unrolled (4 ops per loop)
- * 2 no unrolling -- introduces the need to swap 4 variables (slow)
- * 3 no unrolling and all 4 loops merged into one with switch
- * in each loop (glacial)
- * On i386, sizes are roughly (-Os -fno-builtin):
- * 0: 3k 1: 2.5k 2: 2.2k 3: 2k
- *
- * Since SuSv3 does not require crypt_r, modified again August 7, 2002
- * by Erik Andersen to remove reentrance stuff...
- */
-
-#include "libbb.h"
-
-/* 1: fastest, 3: smallest */
-#if CONFIG_MD5_SIZE_VS_SPEED < 1
-# define MD5_SIZE_VS_SPEED 1
-#elif CONFIG_MD5_SIZE_VS_SPEED > 3
-# define MD5_SIZE_VS_SPEED 3
-#else
-# define MD5_SIZE_VS_SPEED CONFIG_MD5_SIZE_VS_SPEED
-#endif
-
-#if BB_LITTLE_ENDIAN
-#define memcpy32_cpu2le memcpy
-#define memcpy32_le2cpu memcpy
-#else
-/* Encodes input (uint32_t) into output (unsigned char).
- * Assumes len is a multiple of 4. */
-static void
-memcpy32_cpu2le(unsigned char *output, uint32_t *input, unsigned len)
-{
- unsigned i, j;
- for (i = 0, j = 0; j < len; i++, j += 4) {
- output[j] = input[i];
- output[j+1] = (input[i] >> 8);
- output[j+2] = (input[i] >> 16);
- output[j+3] = (input[i] >> 24);
- }
-}
-/* Decodes input (unsigned char) into output (uint32_t).
- * Assumes len is a multiple of 4. */
-static void
-memcpy32_le2cpu(uint32_t *output, const unsigned char *input, unsigned len)
-{
- unsigned i, j;
- for (i = 0, j = 0; j < len; i++, j += 4)
- output[i] = ((uint32_t)input[j])
- | (((uint32_t)input[j+1]) << 8)
- | (((uint32_t)input[j+2]) << 16)
- | (((uint32_t)input[j+3]) << 24);
-}
-#endif /* i386 */
-
-/* F, G, H and I are basic MD5 functions. */
-#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
-#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
-#define H(x, y, z) ((x) ^ (y) ^ (z))
-#define I(x, y, z) ((y) ^ ((x) | ~(z)))
-
-/* rotl32 rotates x left n bits. */
-#define rotl32(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
-
-/*
- * FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
- * Rotation is separate from addition to prevent recomputation.
- */
-#define FF(a, b, c, d, x, s, ac) { \
- (a) += F((b), (c), (d)) + (x) + (uint32_t)(ac); \
- (a) = rotl32((a), (s)); \
- (a) += (b); \
- }
-#define GG(a, b, c, d, x, s, ac) { \
- (a) += G((b), (c), (d)) + (x) + (uint32_t)(ac); \
- (a) = rotl32((a), (s)); \
- (a) += (b); \
- }
-#define HH(a, b, c, d, x, s, ac) { \
- (a) += H((b), (c), (d)) + (x) + (uint32_t)(ac); \
- (a) = rotl32((a), (s)); \
- (a) += (b); \
- }
-#define II(a, b, c, d, x, s, ac) { \
- (a) += I((b), (c), (d)) + (x) + (uint32_t)(ac); \
- (a) = rotl32((a), (s)); \
- (a) += (b); \
- }
-
-/* MD5 basic transformation. Transforms state based on block. */
-static void md5_transform(uint32_t state[4], const unsigned char block[64])
-{
- uint32_t a, b, c, d, x[16];
-#if MD5_SIZE_VS_SPEED > 1
- uint32_t temp;
- const unsigned char *ps;
-
- static const unsigned char S[] = {
- 7, 12, 17, 22,
- 5, 9, 14, 20,
- 4, 11, 16, 23,
- 6, 10, 15, 21
- };
-#endif /* MD5_SIZE_VS_SPEED > 1 */
-
-#if MD5_SIZE_VS_SPEED > 0
- const uint32_t *pc;
- const unsigned char *pp;
- int i;
-
- static const uint32_t C[] = {
- /* round 1 */
- 0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
- 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
- 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
- 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
- /* round 2 */
- 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
- 0xd62f105d, 0x2441453, 0xd8a1e681, 0xe7d3fbc8,
- 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
- 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
- /* round 3 */
- 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
- 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
- 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x4881d05,
- 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
- /* round 4 */
- 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
- 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
- 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
- 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
- };
- static const unsigned char P[] = {
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 1 */
- 1, 6, 11, 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12, /* 2 */
- 5, 8, 11, 14, 1, 4, 7, 10, 13, 0, 3, 6, 9, 12, 15, 2, /* 3 */
- 0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9 /* 4 */
- };
-
-#endif /* MD5_SIZE_VS_SPEED > 0 */
-
- memcpy32_le2cpu(x, block, 64);
-
- a = state[0];
- b = state[1];
- c = state[2];
- d = state[3];
-
-#if MD5_SIZE_VS_SPEED > 2
- pc = C;
- pp = P;
- ps = S - 4;
- for (i = 0; i < 64; i++) {
- if ((i & 0x0f) == 0) ps += 4;
- temp = a;
- switch (i>>4) {
- case 0:
- temp += F(b, c, d);
- break;
- case 1:
- temp += G(b, c, d);
- break;
- case 2:
- temp += H(b, c, d);
- break;
- case 3:
- temp += I(b, c, d);
- break;
- }
- temp += x[*pp++] + *pc++;
- temp = rotl32(temp, ps[i & 3]);
- temp += b;
- a = d; d = c; c = b; b = temp;
- }
-#elif MD5_SIZE_VS_SPEED > 1
- pc = C;
- pp = P;
- ps = S;
- /* Round 1 */
- for (i = 0; i < 16; i++) {
- FF(a, b, c, d, x[*pp], ps[i & 0x3], *pc); pp++; pc++;
- temp = d; d = c; c = b; b = a; a = temp;
- }
- /* Round 2 */
- ps += 4;
- for (; i < 32; i++) {
- GG(a, b, c, d, x[*pp], ps[i & 0x3], *pc); pp++; pc++;
- temp = d; d = c; c = b; b = a; a = temp;
- }
- /* Round 3 */
- ps += 4;
- for (; i < 48; i++) {
- HH(a, b, c, d, x[*pp], ps[i & 0x3], *pc); pp++; pc++;
- temp = d; d = c; c = b; b = a; a = temp;
- }
- /* Round 4 */
- ps += 4;
- for (; i < 64; i++) {
- II(a, b, c, d, x[*pp], ps[i & 0x3], *pc); pp++; pc++;
- temp = d; d = c; c = b; b = a; a = temp;
- }
-#elif MD5_SIZE_VS_SPEED > 0
- pc = C;
- pp = P;
- /* Round 1 */
- for (i = 0; i < 4; i++) {
- FF(a, b, c, d, x[*pp], 7, *pc); pp++; pc++;
- FF(d, a, b, c, x[*pp], 12, *pc); pp++; pc++;
- FF(c, d, a, b, x[*pp], 17, *pc); pp++; pc++;
- FF(b, c, d, a, x[*pp], 22, *pc); pp++; pc++;
- }
- /* Round 2 */
- for (i = 0; i < 4; i++) {
- GG(a, b, c, d, x[*pp], 5, *pc); pp++; pc++;
- GG(d, a, b, c, x[*pp], 9, *pc); pp++; pc++;
- GG(c, d, a, b, x[*pp], 14, *pc); pp++; pc++;
- GG(b, c, d, a, x[*pp], 20, *pc); pp++; pc++;
- }
- /* Round 3 */
- for (i = 0; i < 4; i++) {
- HH(a, b, c, d, x[*pp], 4, *pc); pp++; pc++;
- HH(d, a, b, c, x[*pp], 11, *pc); pp++; pc++;
- HH(c, d, a, b, x[*pp], 16, *pc); pp++; pc++;
- HH(b, c, d, a, x[*pp], 23, *pc); pp++; pc++;
- }
- /* Round 4 */
- for (i = 0; i < 4; i++) {
- II(a, b, c, d, x[*pp], 6, *pc); pp++; pc++;
- II(d, a, b, c, x[*pp], 10, *pc); pp++; pc++;
- II(c, d, a, b, x[*pp], 15, *pc); pp++; pc++;
- II(b, c, d, a, x[*pp], 21, *pc); pp++; pc++;
- }
-#else
- /* Round 1 */
-#define S11 7
-#define S12 12
-#define S13 17
-#define S14 22
- FF(a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
- FF(d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
- FF(c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
- FF(b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
- FF(a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
- FF(d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
- FF(c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
- FF(b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
- FF(a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
- FF(d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
- FF(c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
- FF(b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
- FF(a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
- FF(d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
- FF(c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
- FF(b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
- /* Round 2 */
-#define S21 5
-#define S22 9
-#define S23 14
-#define S24 20
- GG(a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
- GG(d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
- GG(c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
- GG(b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
- GG(a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
- GG(d, a, b, c, x[10], S22, 0x2441453); /* 22 */
- GG(c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
- GG(b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
- GG(a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
- GG(d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
- GG(c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
- GG(b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
- GG(a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
- GG(d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
- GG(c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
- GG(b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
- /* Round 3 */
-#define S31 4
-#define S32 11
-#define S33 16
-#define S34 23
- HH(a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
- HH(d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
- HH(c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
- HH(b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
- HH(a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
- HH(d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
- HH(c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
- HH(b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
- HH(a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
- HH(d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
- HH(c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
- HH(b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */
- HH(a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
- HH(d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
- HH(c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
- HH(b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */
- /* Round 4 */
-#define S41 6
-#define S42 10
-#define S43 15
-#define S44 21
- II(a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
- II(d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
- II(c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
- II(b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
- II(a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
- II(d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
- II(c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
- II(b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
- II(a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
- II(d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
- II(c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
- II(b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
- II(a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
- II(d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
- II(c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
- II(b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */
-#endif
-
- state[0] += a;
- state[1] += b;
- state[2] += c;
- state[3] += d;
-
- /* Zeroize sensitive information. */
- memset(x, 0, sizeof(x));
-}
-
-
-/* MD5 initialization. */
-void FAST_FUNC md5_begin(md5_ctx_t *context)
-{
- context->count[0] = context->count[1] = 0;
- /* Load magic initialization constants. */
- context->state[0] = 0x67452301;
- context->state[1] = 0xefcdab89;
- context->state[2] = 0x98badcfe;
- context->state[3] = 0x10325476;
-}
-
-/*
- * MD5 block update operation. Continues an MD5 message-digest
- * operation, processing another message block, and updating
- * the context.
- */
-void FAST_FUNC md5_hash(const void *buffer, size_t inputLen, md5_ctx_t *context)
-{
- unsigned i, idx, partLen;
- const unsigned char *input = buffer;
-
- /* Compute number of bytes mod 64 */
- idx = (context->count[0] >> 3) & 0x3F;
-
- /* Update number of bits */
- context->count[0] += (inputLen << 3);
- if (context->count[0] < (inputLen << 3))
- context->count[1]++;
- context->count[1] += (inputLen >> 29);
-
- /* Transform as many times as possible. */
- i = 0;
- partLen = 64 - idx;
- if (inputLen >= partLen) {
- memcpy(&context->buffer[idx], input, partLen);
- md5_transform(context->state, context->buffer);
- for (i = partLen; i + 63 < inputLen; i += 64)
- md5_transform(context->state, &input[i]);
- idx = 0;
- }
-
- /* Buffer remaining input */
- memcpy(&context->buffer[idx], &input[i], inputLen - i);
-}
-
-/*
- * MD5 finalization. Ends an MD5 message-digest operation,
- * writing the message digest.
- */
-void FAST_FUNC md5_end(void *digest, md5_ctx_t *context)
-{
- unsigned idx, padLen;
- unsigned char bits[8];
- unsigned char padding[64];
-
- /* Add padding followed by original length. */
- memset(padding, 0, sizeof(padding));
- padding[0] = 0x80;
- /* save number of bits */
- memcpy32_cpu2le(bits, context->count, 8);
- /* pad out to 56 mod 64 */
- idx = (context->count[0] >> 3) & 0x3f;
- padLen = (idx < 56) ? (56 - idx) : (120 - idx);
- md5_hash(padding, padLen, context);
- /* append length (before padding) */
- md5_hash(bits, 8, context);
-
- /* Store state in digest */
- memcpy32_cpu2le(digest, context->state, 16);
-}
+++ /dev/null
-/* vi: set sw=4 ts=4: */
-/*
- * Based on shasum from http://www.netsw.org/crypto/hash/
- * Majorly hacked up to use Dr Brian Gladman's sha1 code
- *
- * Copyright (C) 2002 Dr Brian Gladman <brg@gladman.me.uk>, Worcester, UK.
- * Copyright (C) 2003 Glenn L. McGrath
- * Copyright (C) 2003 Erik Andersen
- *
- * Licensed under GPLv2 or later, see file LICENSE in this source tree.
- *
- * ---------------------------------------------------------------------------
- * Issue Date: 10/11/2002
- *
- * This is a byte oriented version of SHA1 that operates on arrays of bytes
- * stored in memory. It runs at 22 cycles per byte on a Pentium P4 processor
- *
- * ---------------------------------------------------------------------------
- *
- * SHA256 and SHA512 parts are:
- * Released into the Public Domain by Ulrich Drepper <drepper@redhat.com>.
- * Shrank by Denys Vlasenko.
- *
- * ---------------------------------------------------------------------------
- *
- * The best way to test random blocksizes is to go to coreutils/md5_sha1_sum.c
- * and replace "4096" with something like "2000 + time(NULL) % 2097",
- * then rebuild and compare "shaNNNsum bigfile" results.
- */
-
-#include "libbb.h"
-
-/* gcc 4.2.1 optimizes rotr64 better with inline than with macro
- * (for rotX32, there is no difference). Why? My guess is that
- * macro requires clever common subexpression elimination heuristics
- * in gcc, while inline basically forces it to happen.
- */
-//#define rotl32(x,n) (((x) << (n)) | ((x) >> (32 - (n))))
-static ALWAYS_INLINE uint32_t rotl32(uint32_t x, unsigned n)
-{
- return (x << n) | (x >> (32 - n));
-}
-//#define rotr32(x,n) (((x) >> (n)) | ((x) << (32 - (n))))
-static ALWAYS_INLINE uint32_t rotr32(uint32_t x, unsigned n)
-{
- return (x >> n) | (x << (32 - n));
-}
-/* rotr64 in needed for sha512 only: */
-//#define rotr64(x,n) (((x) >> (n)) | ((x) << (64 - (n))))
-static ALWAYS_INLINE uint64_t rotr64(uint64_t x, unsigned n)
-{
- return (x >> n) | (x << (64 - n));
-}
-#if BB_LITTLE_ENDIAN
-/* ALWAYS_INLINE below would hurt code size, using plain inline: */
-static inline uint64_t hton64(uint64_t v)
-{
- return (((uint64_t)htonl(v)) << 32) | htonl(v >> 32);
-}
-#else
-#define hton64(v) (v)
-#endif
-#define ntoh64(v) hton64(v)
-
-
-/* Some arch headers have conflicting defines */
-#undef ch
-#undef parity
-#undef maj
-#undef rnd
-
-static void FAST_FUNC sha1_process_block64(sha1_ctx_t *ctx)
-{
- unsigned t;
- uint32_t W[80], a, b, c, d, e;
- const uint32_t *words = (uint32_t*) ctx->wbuffer;
-
- for (t = 0; t < 16; ++t)
- W[t] = ntohl(words[t]);
- for (/*t = 16*/; t < 80; ++t) {
- uint32_t T = W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16];
- W[t] = rotl32(T, 1);
- }
-
- a = ctx->hash[0];
- b = ctx->hash[1];
- c = ctx->hash[2];
- d = ctx->hash[3];
- e = ctx->hash[4];
-
-/* Reverse byte order in 32-bit words */
-#define ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
-#define parity(x,y,z) ((x) ^ (y) ^ (z))
-#define maj(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
-/* A normal version as set out in the FIPS. This version uses */
-/* partial loop unrolling and is optimised for the Pentium 4 */
-#define rnd(f,k) \
- do { \
- uint32_t T = a; \
- a = rotl32(a, 5) + f(b, c, d) + e + k + W[t]; \
- e = d; \
- d = c; \
- c = rotl32(b, 30); \
- b = T; \
- } while (0)
-
- for (t = 0; t < 20; ++t)
- rnd(ch, 0x5a827999);
-
- for (/*t = 20*/; t < 40; ++t)
- rnd(parity, 0x6ed9eba1);
-
- for (/*t = 40*/; t < 60; ++t)
- rnd(maj, 0x8f1bbcdc);
-
- for (/*t = 60*/; t < 80; ++t)
- rnd(parity, 0xca62c1d6);
-#undef ch
-#undef parity
-#undef maj
-#undef rnd
-
- ctx->hash[0] += a;
- ctx->hash[1] += b;
- ctx->hash[2] += c;
- ctx->hash[3] += d;
- ctx->hash[4] += e;
-}
-
-/* Constants for SHA512 from FIPS 180-2:4.2.3.
- * SHA256 constants from FIPS 180-2:4.2.2
- * are the most significant half of first 64 elements
- * of the same array.
- */
-static const uint64_t sha_K[80] = {
- 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL,
- 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
- 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
- 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
- 0xd807aa98a3030242ULL, 0x12835b0145706fbeULL,
- 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
- 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL,
- 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
- 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
- 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
- 0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL,
- 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
- 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL,
- 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
- 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
- 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
- 0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL,
- 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
- 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL,
- 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
- 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
- 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
- 0xd192e819d6ef5218ULL, 0xd69906245565a910ULL,
- 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
- 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL,
- 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
- 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
- 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
- 0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL,
- 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
- 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL,
- 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
- 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, /* [64]+ are used for sha512 only */
- 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
- 0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL,
- 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
- 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL,
- 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
- 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
- 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
-};
-
-#undef Ch
-#undef Maj
-#undef S0
-#undef S1
-#undef R0
-#undef R1
-
-static void FAST_FUNC sha256_process_block64(sha256_ctx_t *ctx)
-{
- unsigned t;
- uint32_t W[64], a, b, c, d, e, f, g, h;
- const uint32_t *words = (uint32_t*) ctx->wbuffer;
-
- /* Operators defined in FIPS 180-2:4.1.2. */
-#define Ch(x, y, z) ((x & y) ^ (~x & z))
-#define Maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
-#define S0(x) (rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22))
-#define S1(x) (rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25))
-#define R0(x) (rotr32(x, 7) ^ rotr32(x, 18) ^ (x >> 3))
-#define R1(x) (rotr32(x, 17) ^ rotr32(x, 19) ^ (x >> 10))
-
- /* Compute the message schedule according to FIPS 180-2:6.2.2 step 2. */
- for (t = 0; t < 16; ++t)
- W[t] = ntohl(words[t]);
- for (/*t = 16*/; t < 64; ++t)
- W[t] = R1(W[t - 2]) + W[t - 7] + R0(W[t - 15]) + W[t - 16];
-
- a = ctx->hash[0];
- b = ctx->hash[1];
- c = ctx->hash[2];
- d = ctx->hash[3];
- e = ctx->hash[4];
- f = ctx->hash[5];
- g = ctx->hash[6];
- h = ctx->hash[7];
-
- /* The actual computation according to FIPS 180-2:6.2.2 step 3. */
- for (t = 0; t < 64; ++t) {
- /* Need to fetch upper half of sha_K[t]
- * (I hope compiler is clever enough to just fetch
- * upper half)
- */
- uint32_t K_t = sha_K[t] >> 32;
- uint32_t T1 = h + S1(e) + Ch(e, f, g) + K_t + W[t];
- uint32_t T2 = S0(a) + Maj(a, b, c);
- h = g;
- g = f;
- f = e;
- e = d + T1;
- d = c;
- c = b;
- b = a;
- a = T1 + T2;
- }
-#undef Ch
-#undef Maj
-#undef S0
-#undef S1
-#undef R0
-#undef R1
- /* Add the starting values of the context according to FIPS 180-2:6.2.2
- step 4. */
- ctx->hash[0] += a;
- ctx->hash[1] += b;
- ctx->hash[2] += c;
- ctx->hash[3] += d;
- ctx->hash[4] += e;
- ctx->hash[5] += f;
- ctx->hash[6] += g;
- ctx->hash[7] += h;
-}
-
-static void FAST_FUNC sha512_process_block128(sha512_ctx_t *ctx)
-{
- unsigned t;
- uint64_t W[80];
- /* On i386, having assignments here (not later as sha256 does)
- * produces 99 bytes smaller code with gcc 4.3.1
- */
- uint64_t a = ctx->hash[0];
- uint64_t b = ctx->hash[1];
- uint64_t c = ctx->hash[2];
- uint64_t d = ctx->hash[3];
- uint64_t e = ctx->hash[4];
- uint64_t f = ctx->hash[5];
- uint64_t g = ctx->hash[6];
- uint64_t h = ctx->hash[7];
- const uint64_t *words = (uint64_t*) ctx->wbuffer;
-
- /* Operators defined in FIPS 180-2:4.1.2. */
-#define Ch(x, y, z) ((x & y) ^ (~x & z))
-#define Maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
-#define S0(x) (rotr64(x, 28) ^ rotr64(x, 34) ^ rotr64(x, 39))
-#define S1(x) (rotr64(x, 14) ^ rotr64(x, 18) ^ rotr64(x, 41))
-#define R0(x) (rotr64(x, 1) ^ rotr64(x, 8) ^ (x >> 7))
-#define R1(x) (rotr64(x, 19) ^ rotr64(x, 61) ^ (x >> 6))
-
- /* Compute the message schedule according to FIPS 180-2:6.3.2 step 2. */
- for (t = 0; t < 16; ++t)
- W[t] = ntoh64(words[t]);
- for (/*t = 16*/; t < 80; ++t)
- W[t] = R1(W[t - 2]) + W[t - 7] + R0(W[t - 15]) + W[t - 16];
-
- /* The actual computation according to FIPS 180-2:6.3.2 step 3. */
- for (t = 0; t < 80; ++t) {
- uint64_t T1 = h + S1(e) + Ch(e, f, g) + sha_K[t] + W[t];
- uint64_t T2 = S0(a) + Maj(a, b, c);
- h = g;
- g = f;
- f = e;
- e = d + T1;
- d = c;
- c = b;
- b = a;
- a = T1 + T2;
- }
-#undef Ch
-#undef Maj
-#undef S0
-#undef S1
-#undef R0
-#undef R1
- /* Add the starting values of the context according to FIPS 180-2:6.3.2
- step 4. */
- ctx->hash[0] += a;
- ctx->hash[1] += b;
- ctx->hash[2] += c;
- ctx->hash[3] += d;
- ctx->hash[4] += e;
- ctx->hash[5] += f;
- ctx->hash[6] += g;
- ctx->hash[7] += h;
-}
-
-
-void FAST_FUNC sha1_begin(sha1_ctx_t *ctx)
-{
- ctx->hash[0] = 0x67452301;
- ctx->hash[1] = 0xefcdab89;
- ctx->hash[2] = 0x98badcfe;
- ctx->hash[3] = 0x10325476;
- ctx->hash[4] = 0xc3d2e1f0;
- ctx->total64 = 0;
- ctx->process_block = sha1_process_block64;
-}
-
-static const uint32_t init256[] = {
- 0x6a09e667,
- 0xbb67ae85,
- 0x3c6ef372,
- 0xa54ff53a,
- 0x510e527f,
- 0x9b05688c,
- 0x1f83d9ab,
- 0x5be0cd19,
- 0,
- 0,
-};
-static const uint32_t init512_lo[] = {
- 0xf3bcc908,
- 0x84caa73b,
- 0xfe94f82b,
- 0x5f1d36f1,
- 0xade682d1,
- 0x2b3e6c1f,
- 0xfb41bd6b,
- 0x137e2179,
- 0,
- 0,
-};
-
-/* Initialize structure containing state of computation.
- (FIPS 180-2:5.3.2) */
-void FAST_FUNC sha256_begin(sha256_ctx_t *ctx)
-{
- memcpy(ctx->hash, init256, sizeof(init256));
- /*ctx->total64 = 0; - done by extending init256 with two 32-bit zeros */
- ctx->process_block = sha256_process_block64;
-}
-
-/* Initialize structure containing state of computation.
- (FIPS 180-2:5.3.3) */
-void FAST_FUNC sha512_begin(sha512_ctx_t *ctx)
-{
- int i;
- /* Two extra iterations zero out ctx->total64[] */
- for (i = 0; i < 8+2; i++)
- ctx->hash[i] = ((uint64_t)(init256[i]) << 32) + init512_lo[i];
- /*ctx->total64[0] = ctx->total64[1] = 0; - already done */
-}
-
-
-/* Used also for sha256 */
-void FAST_FUNC sha1_hash(sha1_ctx_t *ctx, const void *buffer, size_t len)
-{
- unsigned bufpos = ctx->total64 & 63;
- unsigned remaining;
-
- ctx->total64 += len;
-#if 0
- remaining = 64 - bufpos;
-
- /* Hash whole blocks */
- while (len >= remaining) {
- memcpy(ctx->wbuffer + bufpos, buffer, remaining);
- buffer = (const char *)buffer + remaining;
- len -= remaining;
- remaining = 64;
- bufpos = 0;
- ctx->process_block(ctx);
- }
-
- /* Save last, partial blosk */
- memcpy(ctx->wbuffer + bufpos, buffer, len);
-#else
- /* Tiny bit smaller code */
- while (1) {
- remaining = 64 - bufpos;
- if (remaining > len)
- remaining = len;
- /* Copy data into aligned buffer */
- memcpy(ctx->wbuffer + bufpos, buffer, remaining);
- len -= remaining;
- buffer = (const char *)buffer + remaining;
- bufpos += remaining;
- /* clever way to do "if (bufpos != 64) break; ... ; bufpos = 0;" */
- bufpos -= 64;
- if (bufpos != 0)
- break;
- /* Buffer is filled up, process it */
- ctx->process_block(ctx);
- /*bufpos = 0; - already is */
- }
-#endif
-}
-
-void FAST_FUNC sha512_hash(sha512_ctx_t *ctx, const void *buffer, size_t len)
-{
- unsigned bufpos = ctx->total64[0] & 127;
- unsigned remaining;
-
- /* First increment the byte count. FIPS 180-2 specifies the possible
- length of the file up to 2^128 _bits_.
- We compute the number of _bytes_ and convert to bits later. */
- ctx->total64[0] += len;
- if (ctx->total64[0] < len)
- ctx->total64[1]++;
-#if 0
- remaining = 128 - bufpos;
-
- /* Hash whole blocks */
- while (len >= remaining) {
- memcpy(ctx->wbuffer + bufpos, buffer, remaining);
- buffer = (const char *)buffer + remaining;
- len -= remaining;
- remaining = 128;
- bufpos = 0;
- sha512_process_block128(ctx);
- }
-
- /* Save last, partial blosk */
- memcpy(ctx->wbuffer + bufpos, buffer, len);
-#else
- while (1) {
- remaining = 128 - bufpos;
- if (remaining > len)
- remaining = len;
- /* Copy data into aligned buffer */
- memcpy(ctx->wbuffer + bufpos, buffer, remaining);
- len -= remaining;
- buffer = (const char *)buffer + remaining;
- bufpos += remaining;
- /* clever way to do "if (bufpos != 128) break; ... ; bufpos = 0;" */
- bufpos -= 128;
- if (bufpos != 0)
- break;
- /* Buffer is filled up, process it */
- sha512_process_block128(ctx);
- /*bufpos = 0; - already is */
- }
-#endif
-}
-
-
-/* Used also for sha256 */
-void FAST_FUNC sha1_end(sha1_ctx_t *ctx, void *resbuf)
-{
- unsigned bufpos = ctx->total64 & 63;
-
- /* Pad the buffer to the next 64-byte boundary with 0x80,0,0,0... */
- ctx->wbuffer[bufpos++] = 0x80;
-
- /* This loop iterates either once or twice, no more, no less */
- while (1) {
- unsigned remaining = 64 - bufpos;
- memset(ctx->wbuffer + bufpos, 0, remaining);
- /* Do we have enough space for the length count? */
- if (remaining >= 8) {
- /* Store the 64-bit counter of bits in the buffer in BE format */
- uint64_t t = ctx->total64 << 3;
- t = hton64(t);
- /* wbuffer is suitably aligned for this */
- *(uint64_t *) (&ctx->wbuffer[64 - 8]) = t;
- }
- ctx->process_block(ctx);
- if (remaining >= 8)
- break;
- bufpos = 0;
- }
-
- bufpos = (ctx->process_block == sha1_process_block64) ? 5 : 8;
- /* This way we do not impose alignment constraints on resbuf: */
- if (BB_LITTLE_ENDIAN) {
- unsigned i;
- for (i = 0; i < bufpos; ++i)
- ctx->hash[i] = htonl(ctx->hash[i]);
- }
- memcpy(resbuf, ctx->hash, sizeof(ctx->hash[0]) * bufpos);
-}
-
-void FAST_FUNC sha512_end(sha512_ctx_t *ctx, void *resbuf)
-{
- unsigned bufpos = ctx->total64[0] & 127;
-
- /* Pad the buffer to the next 128-byte boundary with 0x80,0,0,0... */
- ctx->wbuffer[bufpos++] = 0x80;
-
- while (1) {
- unsigned remaining = 128 - bufpos;
- memset(ctx->wbuffer + bufpos, 0, remaining);
- if (remaining >= 16) {
- /* Store the 128-bit counter of bits in the buffer in BE format */
- uint64_t t;
- t = ctx->total64[0] << 3;
- t = hton64(t);
- *(uint64_t *) (&ctx->wbuffer[128 - 8]) = t;
- t = (ctx->total64[1] << 3) | (ctx->total64[0] >> 61);
- t = hton64(t);
- *(uint64_t *) (&ctx->wbuffer[128 - 16]) = t;
- }
- sha512_process_block128(ctx);
- if (remaining >= 16)
- break;
- bufpos = 0;
- }
-
- if (BB_LITTLE_ENDIAN) {
- unsigned i;
- for (i = 0; i < ARRAY_SIZE(ctx->hash); ++i)
- ctx->hash[i] = hton64(ctx->hash[i]);
- }
- memcpy(resbuf, ctx->hash, sizeof(ctx->hash));
-}
projects / oweals / busybox.git / commitdiff