p_open.c p_seal.c p_sign.c p_verify.c p_lib.c p_enc.c p_dec.c \
bio_md.c bio_b64.c bio_enc.c evp_err.c e_null.c \
c_allc.c c_alld.c evp_lib.c bio_ok.c \
- evp_pkey.c evp_pbe.c p5_crpt.c p5_crpt2.c scrypt.c \
+ evp_pkey.c evp_pbe.c p5_crpt.c p5_crpt2.c pbe_scrypt.c \
e_old.c pmeth_lib.c pmeth_fn.c pmeth_gn.c m_sigver.c \
e_aes_cbc_hmac_sha1.c e_aes_cbc_hmac_sha256.c e_rc4_hmac_md5.c \
e_chacha20_poly1305.c cmeth_lib.c
--- /dev/null
+/*
+ * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <openssl/evp.h>
+#include <openssl/err.h>
+#include <internal/numbers.h>
+
+#ifndef OPENSSL_NO_SCRYPT
+
+#define R(a,b) (((a) << (b)) | ((a) >> (32 - (b))))
+static void salsa208_word_specification(uint32_t inout[16])
+{
+ int i;
+ uint32_t x[16];
+ memcpy(x, inout, sizeof(x));
+ for (i = 8; i > 0; i -= 2) {
+ x[4] ^= R(x[0] + x[12], 7);
+ x[8] ^= R(x[4] + x[0], 9);
+ x[12] ^= R(x[8] + x[4], 13);
+ x[0] ^= R(x[12] + x[8], 18);
+ x[9] ^= R(x[5] + x[1], 7);
+ x[13] ^= R(x[9] + x[5], 9);
+ x[1] ^= R(x[13] + x[9], 13);
+ x[5] ^= R(x[1] + x[13], 18);
+ x[14] ^= R(x[10] + x[6], 7);
+ x[2] ^= R(x[14] + x[10], 9);
+ x[6] ^= R(x[2] + x[14], 13);
+ x[10] ^= R(x[6] + x[2], 18);
+ x[3] ^= R(x[15] + x[11], 7);
+ x[7] ^= R(x[3] + x[15], 9);
+ x[11] ^= R(x[7] + x[3], 13);
+ x[15] ^= R(x[11] + x[7], 18);
+ x[1] ^= R(x[0] + x[3], 7);
+ x[2] ^= R(x[1] + x[0], 9);
+ x[3] ^= R(x[2] + x[1], 13);
+ x[0] ^= R(x[3] + x[2], 18);
+ x[6] ^= R(x[5] + x[4], 7);
+ x[7] ^= R(x[6] + x[5], 9);
+ x[4] ^= R(x[7] + x[6], 13);
+ x[5] ^= R(x[4] + x[7], 18);
+ x[11] ^= R(x[10] + x[9], 7);
+ x[8] ^= R(x[11] + x[10], 9);
+ x[9] ^= R(x[8] + x[11], 13);
+ x[10] ^= R(x[9] + x[8], 18);
+ x[12] ^= R(x[15] + x[14], 7);
+ x[13] ^= R(x[12] + x[15], 9);
+ x[14] ^= R(x[13] + x[12], 13);
+ x[15] ^= R(x[14] + x[13], 18);
+ }
+ for (i = 0; i < 16; ++i)
+ inout[i] += x[i];
+ OPENSSL_cleanse(x, sizeof(x));
+}
+
+static void scryptBlockMix(uint32_t *B_, uint32_t *B, uint64_t r)
+{
+ uint64_t i, j;
+ uint32_t X[16], *pB;
+
+ memcpy(X, B + (r * 2 - 1) * 16, sizeof(X));
+ pB = B;
+ for (i = 0; i < r * 2; i++) {
+ for (j = 0; j < 16; j++)
+ X[j] ^= *pB++;
+ salsa208_word_specification(X);
+ memcpy(B_ + (i / 2 + (i & 1) * r) * 16, X, sizeof(X));
+ }
+ OPENSSL_cleanse(X, sizeof(X));
+}
+
+static void scryptROMix(unsigned char *B, uint64_t r, uint64_t N,
+ uint32_t *X, uint32_t *T, uint32_t *V)
+{
+ unsigned char *pB;
+ uint32_t *pV;
+ uint64_t i, k;
+
+ /* Convert from little endian input */
+ for (pV = V, i = 0, pB = B; i < 32 * r; i++, pV++) {
+ *pV = *pB++;
+ *pV |= *pB++ << 8;
+ *pV |= *pB++ << 16;
+ *pV |= (uint32_t)*pB++ << 24;
+ }
+
+ for (i = 1; i < N; i++, pV += 32 * r)
+ scryptBlockMix(pV, pV - 32 * r, r);
+
+ scryptBlockMix(X, V + (N - 1) * 32 * r, r);
+
+ for (i = 0; i < N; i++) {
+ uint32_t j;
+ j = X[16 * (2 * r - 1)] % N;
+ pV = V + 32 * r * j;
+ for (k = 0; k < 32 * r; k++)
+ T[k] = X[k] ^ *pV++;
+ scryptBlockMix(X, T, r);
+ }
+ /* Convert output to little endian */
+ for (i = 0, pB = B; i < 32 * r; i++) {
+ uint32_t xtmp = X[i];
+ *pB++ = xtmp & 0xff;
+ *pB++ = (xtmp >> 8) & 0xff;
+ *pB++ = (xtmp >> 16) & 0xff;
+ *pB++ = (xtmp >> 24) & 0xff;
+ }
+}
+
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t)-1)
+#endif
+
+/*
+ * Maximum power of two that will fit in uint64_t: this should work on
+ * most (all?) platforms.
+ */
+
+#define LOG2_UINT64_MAX (sizeof(uint64_t) * 8 - 1)
+
+/*
+ * Maximum value of p * r:
+ * p <= ((2^32-1) * hLen) / MFLen =>
+ * p <= ((2^32-1) * 32) / (128 * r) =>
+ * p * r <= (2^30-1)
+ *
+ */
+
+#define SCRYPT_PR_MAX ((1 << 30) - 1)
+
+/*
+ * Maximum permitted memory allow this to be overridden with Configuration
+ * option: e.g. -DSCRYPT_MAX_MEM=0 for maximum possible.
+ */
+
+#ifdef SCRYPT_MAX_MEM
+# if SCRYPT_MAX_MEM == 0
+# undef SCRYPT_MAX_MEM
+/*
+ * Although we could theoretically allocate SIZE_MAX memory that would leave
+ * no memory available for anything else so set limit as half that.
+ */
+# define SCRYPT_MAX_MEM (SIZE_MAX/2)
+# endif
+#else
+/* Default memory limit: 32 MB */
+# define SCRYPT_MAX_MEM (1024 * 1024 * 32)
+#endif
+
+int EVP_PBE_scrypt(const char *pass, size_t passlen,
+ const unsigned char *salt, size_t saltlen,
+ uint64_t N, uint64_t r, uint64_t p, uint64_t maxmem,
+ unsigned char *key, size_t keylen)
+{
+ int rv = 0;
+ unsigned char *B;
+ uint32_t *X, *V, *T;
+ uint64_t i, Blen, Vlen;
+ size_t allocsize;
+
+ /* Sanity check parameters */
+ /* initial check, r,p must be non zero, N >= 2 and a power of 2 */
+ if (r == 0 || p == 0 || N < 2 || (N & (N - 1)))
+ return 0;
+ /* Check p * r < SCRYPT_PR_MAX avoiding overflow */
+ if (p > SCRYPT_PR_MAX / r)
+ return 0;
+
+ /*
+ * Need to check N: if 2^(128 * r / 8) overflows limit this is
+ * automatically satisfied since N <= UINT64_MAX.
+ */
+
+ if (16 * r <= LOG2_UINT64_MAX) {
+ if (N >= (((uint64_t)1) << (16 * r)))
+ return 0;
+ }
+
+ /* Memory checks: check total allocated buffer size fits in uint64_t */
+
+ /*
+ * B size in section 5 step 1.S
+ * Note: we know p * 128 * r < UINT64_MAX because we already checked
+ * p * r < SCRYPT_PR_MAX
+ */
+ Blen = p * 128 * r;
+
+ /*
+ * Check 32 * r * (N + 2) * sizeof(uint32_t) fits in
+ * uint64_t and also size_t (their sizes are unrelated).
+ * This is combined size V, X and T (section 4)
+ */
+ i = UINT64_MAX / (32 * sizeof(uint32_t));
+ if (N + 2 > i / r)
+ return 0;
+ Vlen = 32 * r * (N + 2) * sizeof(uint32_t);
+
+ /* check total allocated size fits in uint64_t */
+ if (Blen > UINT64_MAX - Vlen)
+ return 0;
+ /* check total allocated size fits in size_t */
+ if (Blen > SIZE_MAX - Vlen)
+ return 0;
+
+ allocsize = (size_t)(Blen + Vlen);
+
+ if (maxmem == 0)
+ maxmem = SCRYPT_MAX_MEM;
+
+ if (allocsize > maxmem) {
+ EVPerr(EVP_F_EVP_PBE_SCRYPT, EVP_R_MEMORY_LIMIT_EXCEEDED);
+ return 0;
+ }
+
+ /* If no key return to indicate parameters are OK */
+ if (key == NULL)
+ return 1;
+
+ B = OPENSSL_malloc(allocsize);
+ if (B == NULL)
+ return 0;
+ X = (uint32_t *)(B + Blen);
+ T = X + 32 * r;
+ V = T + 32 * r;
+ if (PKCS5_PBKDF2_HMAC(pass, passlen, salt, saltlen, 1, EVP_sha256(),
+ Blen, B) == 0)
+ goto err;
+
+ for (i = 0; i < p; i++)
+ scryptROMix(B + 128 * r * i, r, N, X, T, V);
+
+ if (PKCS5_PBKDF2_HMAC(pass, passlen, B, Blen, 1, EVP_sha256(),
+ keylen, key) == 0)
+ goto err;
+ rv = 1;
+ err:
+ OPENSSL_clear_free(B, allocsize);
+ return rv;
+}
+#endif
+++ /dev/null
-/*
- * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
-
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include <openssl/evp.h>
-#include <openssl/err.h>
-#include <internal/numbers.h>
-
-#ifndef OPENSSL_NO_SCRYPT
-
-#define R(a,b) (((a) << (b)) | ((a) >> (32 - (b))))
-static void salsa208_word_specification(uint32_t inout[16])
-{
- int i;
- uint32_t x[16];
- memcpy(x, inout, sizeof(x));
- for (i = 8; i > 0; i -= 2) {
- x[4] ^= R(x[0] + x[12], 7);
- x[8] ^= R(x[4] + x[0], 9);
- x[12] ^= R(x[8] + x[4], 13);
- x[0] ^= R(x[12] + x[8], 18);
- x[9] ^= R(x[5] + x[1], 7);
- x[13] ^= R(x[9] + x[5], 9);
- x[1] ^= R(x[13] + x[9], 13);
- x[5] ^= R(x[1] + x[13], 18);
- x[14] ^= R(x[10] + x[6], 7);
- x[2] ^= R(x[14] + x[10], 9);
- x[6] ^= R(x[2] + x[14], 13);
- x[10] ^= R(x[6] + x[2], 18);
- x[3] ^= R(x[15] + x[11], 7);
- x[7] ^= R(x[3] + x[15], 9);
- x[11] ^= R(x[7] + x[3], 13);
- x[15] ^= R(x[11] + x[7], 18);
- x[1] ^= R(x[0] + x[3], 7);
- x[2] ^= R(x[1] + x[0], 9);
- x[3] ^= R(x[2] + x[1], 13);
- x[0] ^= R(x[3] + x[2], 18);
- x[6] ^= R(x[5] + x[4], 7);
- x[7] ^= R(x[6] + x[5], 9);
- x[4] ^= R(x[7] + x[6], 13);
- x[5] ^= R(x[4] + x[7], 18);
- x[11] ^= R(x[10] + x[9], 7);
- x[8] ^= R(x[11] + x[10], 9);
- x[9] ^= R(x[8] + x[11], 13);
- x[10] ^= R(x[9] + x[8], 18);
- x[12] ^= R(x[15] + x[14], 7);
- x[13] ^= R(x[12] + x[15], 9);
- x[14] ^= R(x[13] + x[12], 13);
- x[15] ^= R(x[14] + x[13], 18);
- }
- for (i = 0; i < 16; ++i)
- inout[i] += x[i];
- OPENSSL_cleanse(x, sizeof(x));
-}
-
-static void scryptBlockMix(uint32_t *B_, uint32_t *B, uint64_t r)
-{
- uint64_t i, j;
- uint32_t X[16], *pB;
-
- memcpy(X, B + (r * 2 - 1) * 16, sizeof(X));
- pB = B;
- for (i = 0; i < r * 2; i++) {
- for (j = 0; j < 16; j++)
- X[j] ^= *pB++;
- salsa208_word_specification(X);
- memcpy(B_ + (i / 2 + (i & 1) * r) * 16, X, sizeof(X));
- }
- OPENSSL_cleanse(X, sizeof(X));
-}
-
-static void scryptROMix(unsigned char *B, uint64_t r, uint64_t N,
- uint32_t *X, uint32_t *T, uint32_t *V)
-{
- unsigned char *pB;
- uint32_t *pV;
- uint64_t i, k;
-
- /* Convert from little endian input */
- for (pV = V, i = 0, pB = B; i < 32 * r; i++, pV++) {
- *pV = *pB++;
- *pV |= *pB++ << 8;
- *pV |= *pB++ << 16;
- *pV |= (uint32_t)*pB++ << 24;
- }
-
- for (i = 1; i < N; i++, pV += 32 * r)
- scryptBlockMix(pV, pV - 32 * r, r);
-
- scryptBlockMix(X, V + (N - 1) * 32 * r, r);
-
- for (i = 0; i < N; i++) {
- uint32_t j;
- j = X[16 * (2 * r - 1)] % N;
- pV = V + 32 * r * j;
- for (k = 0; k < 32 * r; k++)
- T[k] = X[k] ^ *pV++;
- scryptBlockMix(X, T, r);
- }
- /* Convert output to little endian */
- for (i = 0, pB = B; i < 32 * r; i++) {
- uint32_t xtmp = X[i];
- *pB++ = xtmp & 0xff;
- *pB++ = (xtmp >> 8) & 0xff;
- *pB++ = (xtmp >> 16) & 0xff;
- *pB++ = (xtmp >> 24) & 0xff;
- }
-}
-
-#ifndef SIZE_MAX
-# define SIZE_MAX ((size_t)-1)
-#endif
-
-/*
- * Maximum power of two that will fit in uint64_t: this should work on
- * most (all?) platforms.
- */
-
-#define LOG2_UINT64_MAX (sizeof(uint64_t) * 8 - 1)
-
-/*
- * Maximum value of p * r:
- * p <= ((2^32-1) * hLen) / MFLen =>
- * p <= ((2^32-1) * 32) / (128 * r) =>
- * p * r <= (2^30-1)
- *
- */
-
-#define SCRYPT_PR_MAX ((1 << 30) - 1)
-
-/*
- * Maximum permitted memory allow this to be overridden with Configuration
- * option: e.g. -DSCRYPT_MAX_MEM=0 for maximum possible.
- */
-
-#ifdef SCRYPT_MAX_MEM
-# if SCRYPT_MAX_MEM == 0
-# undef SCRYPT_MAX_MEM
-/*
- * Although we could theoretically allocate SIZE_MAX memory that would leave
- * no memory available for anything else so set limit as half that.
- */
-# define SCRYPT_MAX_MEM (SIZE_MAX/2)
-# endif
-#else
-/* Default memory limit: 32 MB */
-# define SCRYPT_MAX_MEM (1024 * 1024 * 32)
-#endif
-
-int EVP_PBE_scrypt(const char *pass, size_t passlen,
- const unsigned char *salt, size_t saltlen,
- uint64_t N, uint64_t r, uint64_t p, uint64_t maxmem,
- unsigned char *key, size_t keylen)
-{
- int rv = 0;
- unsigned char *B;
- uint32_t *X, *V, *T;
- uint64_t i, Blen, Vlen;
- size_t allocsize;
-
- /* Sanity check parameters */
- /* initial check, r,p must be non zero, N >= 2 and a power of 2 */
- if (r == 0 || p == 0 || N < 2 || (N & (N - 1)))
- return 0;
- /* Check p * r < SCRYPT_PR_MAX avoiding overflow */
- if (p > SCRYPT_PR_MAX / r)
- return 0;
-
- /*
- * Need to check N: if 2^(128 * r / 8) overflows limit this is
- * automatically satisfied since N <= UINT64_MAX.
- */
-
- if (16 * r <= LOG2_UINT64_MAX) {
- if (N >= (((uint64_t)1) << (16 * r)))
- return 0;
- }
-
- /* Memory checks: check total allocated buffer size fits in uint64_t */
-
- /*
- * B size in section 5 step 1.S
- * Note: we know p * 128 * r < UINT64_MAX because we already checked
- * p * r < SCRYPT_PR_MAX
- */
- Blen = p * 128 * r;
-
- /*
- * Check 32 * r * (N + 2) * sizeof(uint32_t) fits in
- * uint64_t and also size_t (their sizes are unrelated).
- * This is combined size V, X and T (section 4)
- */
- i = UINT64_MAX / (32 * sizeof(uint32_t));
- if (N + 2 > i / r)
- return 0;
- Vlen = 32 * r * (N + 2) * sizeof(uint32_t);
-
- /* check total allocated size fits in uint64_t */
- if (Blen > UINT64_MAX - Vlen)
- return 0;
- /* check total allocated size fits in size_t */
- if (Blen > SIZE_MAX - Vlen)
- return 0;
-
- allocsize = (size_t)(Blen + Vlen);
-
- if (maxmem == 0)
- maxmem = SCRYPT_MAX_MEM;
-
- if (allocsize > maxmem) {
- EVPerr(EVP_F_EVP_PBE_SCRYPT, EVP_R_MEMORY_LIMIT_EXCEEDED);
- return 0;
- }
-
- /* If no key return to indicate parameters are OK */
- if (key == NULL)
- return 1;
-
- B = OPENSSL_malloc(allocsize);
- if (B == NULL)
- return 0;
- X = (uint32_t *)(B + Blen);
- T = X + 32 * r;
- V = T + 32 * r;
- if (PKCS5_PBKDF2_HMAC(pass, passlen, salt, saltlen, 1, EVP_sha256(),
- Blen, B) == 0)
- goto err;
-
- for (i = 0; i < p; i++)
- scryptROMix(B + 128 * r * i, r, N, X, T, V);
-
- if (PKCS5_PBKDF2_HMAC(pass, passlen, B, Blen, 1, EVP_sha256(),
- keylen, key) == 0)
- goto err;
- rv = 1;
- err:
- OPENSSL_clear_free(B, allocsize);
- return rv;
-}
-#endif
projects / oweals / openssl.git / commitdiff