2 * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/crypto.h>
11 #include "modes_lcl.h"
14 #if defined(BSWAP4) && defined(STRICT_ALIGNMENT)
15 /* redefine, because alignment is ensured */
17 # define GETU32(p) BSWAP4(*(const u32 *)(p))
19 # define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v)
22 #define PACK(s) ((size_t)(s)<<(sizeof(size_t)*8-16))
23 #define REDUCE1BIT(V) do { \
24 if (sizeof(size_t)==8) { \
25 u64 T = U64(0xe100000000000000) & (0-(V.lo&1)); \
26 V.lo = (V.hi<<63)|(V.lo>>1); \
27 V.hi = (V.hi>>1 )^T; \
30 u32 T = 0xe1000000U & (0-(u32)(V.lo&1)); \
31 V.lo = (V.hi<<63)|(V.lo>>1); \
32 V.hi = (V.hi>>1 )^((u64)T<<32); \
37 * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should
38 * never be set to 8. 8 is effectively reserved for testing purposes.
39 * TABLE_BITS>1 are lookup-table-driven implementations referred to as
40 * "Shoup's" in GCM specification. In other words OpenSSL does not cover
41 * whole spectrum of possible table driven implementations. Why? In
42 * non-"Shoup's" case memory access pattern is segmented in such manner,
43 * that it's trivial to see that cache timing information can reveal
44 * fair portion of intermediate hash value. Given that ciphertext is
45 * always available to attacker, it's possible for him to attempt to
46 * deduce secret parameter H and if successful, tamper with messages
47 * [which is nothing but trivial in CTR mode]. In "Shoup's" case it's
48 * not as trivial, but there is no reason to believe that it's resistant
49 * to cache-timing attack. And the thing about "8-bit" implementation is
50 * that it consumes 16 (sixteen) times more memory, 4KB per individual
51 * key + 1KB shared. Well, on pros side it should be twice as fast as
52 * "4-bit" version. And for gcc-generated x86[_64] code, "8-bit" version
53 * was observed to run ~75% faster, closer to 100% for commercial
54 * compilers... Yet "4-bit" procedure is preferred, because it's
55 * believed to provide better security-performance balance and adequate
56 * all-round performance. "All-round" refers to things like:
58 * - shorter setup time effectively improves overall timing for
59 * handling short messages;
60 * - larger table allocation can become unbearable because of VM
61 * subsystem penalties (for example on Windows large enough free
62 * results in VM working set trimming, meaning that consequent
63 * malloc would immediately incur working set expansion);
64 * - larger table has larger cache footprint, which can affect
65 * performance of other code paths (not necessarily even from same
66 * thread in Hyper-Threading world);
68 * Value of 1 is not appropriate for performance reasons.
72 static void gcm_init_8bit(u128 Htable[256], u64 H[2])
82 for (Htable[128] = V, i = 64; i > 0; i >>= 1) {
87 for (i = 2; i < 256; i <<= 1) {
88 u128 *Hi = Htable + i, H0 = *Hi;
89 for (j = 1; j < i; ++j) {
90 Hi[j].hi = H0.hi ^ Htable[j].hi;
91 Hi[j].lo = H0.lo ^ Htable[j].lo;
96 static void gcm_gmult_8bit(u64 Xi[2], const u128 Htable[256])
99 const u8 *xi = (const u8 *)Xi + 15;
105 static const size_t rem_8bit[256] = {
106 PACK(0x0000), PACK(0x01C2), PACK(0x0384), PACK(0x0246),
107 PACK(0x0708), PACK(0x06CA), PACK(0x048C), PACK(0x054E),
108 PACK(0x0E10), PACK(0x0FD2), PACK(0x0D94), PACK(0x0C56),
109 PACK(0x0918), PACK(0x08DA), PACK(0x0A9C), PACK(0x0B5E),
110 PACK(0x1C20), PACK(0x1DE2), PACK(0x1FA4), PACK(0x1E66),
111 PACK(0x1B28), PACK(0x1AEA), PACK(0x18AC), PACK(0x196E),
112 PACK(0x1230), PACK(0x13F2), PACK(0x11B4), PACK(0x1076),
113 PACK(0x1538), PACK(0x14FA), PACK(0x16BC), PACK(0x177E),
114 PACK(0x3840), PACK(0x3982), PACK(0x3BC4), PACK(0x3A06),
115 PACK(0x3F48), PACK(0x3E8A), PACK(0x3CCC), PACK(0x3D0E),
116 PACK(0x3650), PACK(0x3792), PACK(0x35D4), PACK(0x3416),
117 PACK(0x3158), PACK(0x309A), PACK(0x32DC), PACK(0x331E),
118 PACK(0x2460), PACK(0x25A2), PACK(0x27E4), PACK(0x2626),
119 PACK(0x2368), PACK(0x22AA), PACK(0x20EC), PACK(0x212E),
120 PACK(0x2A70), PACK(0x2BB2), PACK(0x29F4), PACK(0x2836),
121 PACK(0x2D78), PACK(0x2CBA), PACK(0x2EFC), PACK(0x2F3E),
122 PACK(0x7080), PACK(0x7142), PACK(0x7304), PACK(0x72C6),
123 PACK(0x7788), PACK(0x764A), PACK(0x740C), PACK(0x75CE),
124 PACK(0x7E90), PACK(0x7F52), PACK(0x7D14), PACK(0x7CD6),
125 PACK(0x7998), PACK(0x785A), PACK(0x7A1C), PACK(0x7BDE),
126 PACK(0x6CA0), PACK(0x6D62), PACK(0x6F24), PACK(0x6EE6),
127 PACK(0x6BA8), PACK(0x6A6A), PACK(0x682C), PACK(0x69EE),
128 PACK(0x62B0), PACK(0x6372), PACK(0x6134), PACK(0x60F6),
129 PACK(0x65B8), PACK(0x647A), PACK(0x663C), PACK(0x67FE),
130 PACK(0x48C0), PACK(0x4902), PACK(0x4B44), PACK(0x4A86),
131 PACK(0x4FC8), PACK(0x4E0A), PACK(0x4C4C), PACK(0x4D8E),
132 PACK(0x46D0), PACK(0x4712), PACK(0x4554), PACK(0x4496),
133 PACK(0x41D8), PACK(0x401A), PACK(0x425C), PACK(0x439E),
134 PACK(0x54E0), PACK(0x5522), PACK(0x5764), PACK(0x56A6),
135 PACK(0x53E8), PACK(0x522A), PACK(0x506C), PACK(0x51AE),
136 PACK(0x5AF0), PACK(0x5B32), PACK(0x5974), PACK(0x58B6),
137 PACK(0x5DF8), PACK(0x5C3A), PACK(0x5E7C), PACK(0x5FBE),
138 PACK(0xE100), PACK(0xE0C2), PACK(0xE284), PACK(0xE346),
139 PACK(0xE608), PACK(0xE7CA), PACK(0xE58C), PACK(0xE44E),
140 PACK(0xEF10), PACK(0xEED2), PACK(0xEC94), PACK(0xED56),
141 PACK(0xE818), PACK(0xE9DA), PACK(0xEB9C), PACK(0xEA5E),
142 PACK(0xFD20), PACK(0xFCE2), PACK(0xFEA4), PACK(0xFF66),
143 PACK(0xFA28), PACK(0xFBEA), PACK(0xF9AC), PACK(0xF86E),
144 PACK(0xF330), PACK(0xF2F2), PACK(0xF0B4), PACK(0xF176),
145 PACK(0xF438), PACK(0xF5FA), PACK(0xF7BC), PACK(0xF67E),
146 PACK(0xD940), PACK(0xD882), PACK(0xDAC4), PACK(0xDB06),
147 PACK(0xDE48), PACK(0xDF8A), PACK(0xDDCC), PACK(0xDC0E),
148 PACK(0xD750), PACK(0xD692), PACK(0xD4D4), PACK(0xD516),
149 PACK(0xD058), PACK(0xD19A), PACK(0xD3DC), PACK(0xD21E),
150 PACK(0xC560), PACK(0xC4A2), PACK(0xC6E4), PACK(0xC726),
151 PACK(0xC268), PACK(0xC3AA), PACK(0xC1EC), PACK(0xC02E),
152 PACK(0xCB70), PACK(0xCAB2), PACK(0xC8F4), PACK(0xC936),
153 PACK(0xCC78), PACK(0xCDBA), PACK(0xCFFC), PACK(0xCE3E),
154 PACK(0x9180), PACK(0x9042), PACK(0x9204), PACK(0x93C6),
155 PACK(0x9688), PACK(0x974A), PACK(0x950C), PACK(0x94CE),
156 PACK(0x9F90), PACK(0x9E52), PACK(0x9C14), PACK(0x9DD6),
157 PACK(0x9898), PACK(0x995A), PACK(0x9B1C), PACK(0x9ADE),
158 PACK(0x8DA0), PACK(0x8C62), PACK(0x8E24), PACK(0x8FE6),
159 PACK(0x8AA8), PACK(0x8B6A), PACK(0x892C), PACK(0x88EE),
160 PACK(0x83B0), PACK(0x8272), PACK(0x8034), PACK(0x81F6),
161 PACK(0x84B8), PACK(0x857A), PACK(0x873C), PACK(0x86FE),
162 PACK(0xA9C0), PACK(0xA802), PACK(0xAA44), PACK(0xAB86),
163 PACK(0xAEC8), PACK(0xAF0A), PACK(0xAD4C), PACK(0xAC8E),
164 PACK(0xA7D0), PACK(0xA612), PACK(0xA454), PACK(0xA596),
165 PACK(0xA0D8), PACK(0xA11A), PACK(0xA35C), PACK(0xA29E),
166 PACK(0xB5E0), PACK(0xB422), PACK(0xB664), PACK(0xB7A6),
167 PACK(0xB2E8), PACK(0xB32A), PACK(0xB16C), PACK(0xB0AE),
168 PACK(0xBBF0), PACK(0xBA32), PACK(0xB874), PACK(0xB9B6),
169 PACK(0xBCF8), PACK(0xBD3A), PACK(0xBF7C), PACK(0xBEBE)
173 Z.hi ^= Htable[n].hi;
174 Z.lo ^= Htable[n].lo;
181 rem = (size_t)Z.lo & 0xff;
182 Z.lo = (Z.hi << 56) | (Z.lo >> 8);
184 if (sizeof(size_t) == 8)
185 Z.hi ^= rem_8bit[rem];
187 Z.hi ^= (u64)rem_8bit[rem] << 32;
190 if (is_endian.little) {
192 Xi[0] = BSWAP8(Z.hi);
193 Xi[1] = BSWAP8(Z.lo);
197 v = (u32)(Z.hi >> 32);
201 v = (u32)(Z.lo >> 32);
212 # define GCM_MUL(ctx,Xi) gcm_gmult_8bit(ctx->Xi.u,ctx->Htable)
216 static void gcm_init_4bit(u128 Htable[16], u64 H[2])
219 # if defined(OPENSSL_SMALL_FOOTPRINT)
228 # if defined(OPENSSL_SMALL_FOOTPRINT)
229 for (Htable[8] = V, i = 4; i > 0; i >>= 1) {
234 for (i = 2; i < 16; i <<= 1) {
235 u128 *Hi = Htable + i;
237 for (V = *Hi, j = 1; j < i; ++j) {
238 Hi[j].hi = V.hi ^ Htable[j].hi;
239 Hi[j].lo = V.lo ^ Htable[j].lo;
250 Htable[3].hi = V.hi ^ Htable[2].hi, Htable[3].lo = V.lo ^ Htable[2].lo;
252 Htable[5].hi = V.hi ^ Htable[1].hi, Htable[5].lo = V.lo ^ Htable[1].lo;
253 Htable[6].hi = V.hi ^ Htable[2].hi, Htable[6].lo = V.lo ^ Htable[2].lo;
254 Htable[7].hi = V.hi ^ Htable[3].hi, Htable[7].lo = V.lo ^ Htable[3].lo;
256 Htable[9].hi = V.hi ^ Htable[1].hi, Htable[9].lo = V.lo ^ Htable[1].lo;
257 Htable[10].hi = V.hi ^ Htable[2].hi, Htable[10].lo = V.lo ^ Htable[2].lo;
258 Htable[11].hi = V.hi ^ Htable[3].hi, Htable[11].lo = V.lo ^ Htable[3].lo;
259 Htable[12].hi = V.hi ^ Htable[4].hi, Htable[12].lo = V.lo ^ Htable[4].lo;
260 Htable[13].hi = V.hi ^ Htable[5].hi, Htable[13].lo = V.lo ^ Htable[5].lo;
261 Htable[14].hi = V.hi ^ Htable[6].hi, Htable[14].lo = V.lo ^ Htable[6].lo;
262 Htable[15].hi = V.hi ^ Htable[7].hi, Htable[15].lo = V.lo ^ Htable[7].lo;
264 # if defined(GHASH_ASM) && (defined(__arm__) || defined(__arm))
266 * ARM assembler expects specific dword order in Htable.
275 if (is_endian.little)
276 for (j = 0; j < 16; ++j) {
281 for (j = 0; j < 16; ++j) {
283 Htable[j].hi = V.lo << 32 | V.lo >> 32;
284 Htable[j].lo = V.hi << 32 | V.hi >> 32;
291 static const size_t rem_4bit[16] = {
292 PACK(0x0000), PACK(0x1C20), PACK(0x3840), PACK(0x2460),
293 PACK(0x7080), PACK(0x6CA0), PACK(0x48C0), PACK(0x54E0),
294 PACK(0xE100), PACK(0xFD20), PACK(0xD940), PACK(0xC560),
295 PACK(0x9180), PACK(0x8DA0), PACK(0xA9C0), PACK(0xB5E0)
298 static void gcm_gmult_4bit(u64 Xi[2], const u128 Htable[16])
302 size_t rem, nlo, nhi;
308 nlo = ((const u8 *)Xi)[15];
312 Z.hi = Htable[nlo].hi;
313 Z.lo = Htable[nlo].lo;
316 rem = (size_t)Z.lo & 0xf;
317 Z.lo = (Z.hi << 60) | (Z.lo >> 4);
319 if (sizeof(size_t) == 8)
320 Z.hi ^= rem_4bit[rem];
322 Z.hi ^= (u64)rem_4bit[rem] << 32;
324 Z.hi ^= Htable[nhi].hi;
325 Z.lo ^= Htable[nhi].lo;
330 nlo = ((const u8 *)Xi)[cnt];
334 rem = (size_t)Z.lo & 0xf;
335 Z.lo = (Z.hi << 60) | (Z.lo >> 4);
337 if (sizeof(size_t) == 8)
338 Z.hi ^= rem_4bit[rem];
340 Z.hi ^= (u64)rem_4bit[rem] << 32;
342 Z.hi ^= Htable[nlo].hi;
343 Z.lo ^= Htable[nlo].lo;
346 if (is_endian.little) {
348 Xi[0] = BSWAP8(Z.hi);
349 Xi[1] = BSWAP8(Z.lo);
353 v = (u32)(Z.hi >> 32);
357 v = (u32)(Z.lo >> 32);
368 # if !defined(OPENSSL_SMALL_FOOTPRINT)
370 * Streamed gcm_mult_4bit, see CRYPTO_gcm128_[en|de]crypt for
371 * details... Compiler-generated code doesn't seem to give any
372 * performance improvement, at least not on x86[_64]. It's here
373 * mostly as reference and a placeholder for possible future
374 * non-trivial optimization[s]...
376 static void gcm_ghash_4bit(u64 Xi[2], const u128 Htable[16],
377 const u8 *inp, size_t len)
381 size_t rem, nlo, nhi;
390 nlo = ((const u8 *)Xi)[15];
395 Z.hi = Htable[nlo].hi;
396 Z.lo = Htable[nlo].lo;
399 rem = (size_t)Z.lo & 0xf;
400 Z.lo = (Z.hi << 60) | (Z.lo >> 4);
402 if (sizeof(size_t) == 8)
403 Z.hi ^= rem_4bit[rem];
405 Z.hi ^= (u64)rem_4bit[rem] << 32;
407 Z.hi ^= Htable[nhi].hi;
408 Z.lo ^= Htable[nhi].lo;
413 nlo = ((const u8 *)Xi)[cnt];
418 rem = (size_t)Z.lo & 0xf;
419 Z.lo = (Z.hi << 60) | (Z.lo >> 4);
421 if (sizeof(size_t) == 8)
422 Z.hi ^= rem_4bit[rem];
424 Z.hi ^= (u64)rem_4bit[rem] << 32;
426 Z.hi ^= Htable[nlo].hi;
427 Z.lo ^= Htable[nlo].lo;
431 * Extra 256+16 bytes per-key plus 512 bytes shared tables
432 * [should] give ~50% improvement... One could have PACK()-ed
433 * the rem_8bit even here, but the priority is to minimize
436 u128 Hshr4[16]; /* Htable shifted right by 4 bits */
437 u8 Hshl4[16]; /* Htable shifted left by 4 bits */
438 static const unsigned short rem_8bit[256] = {
439 0x0000, 0x01C2, 0x0384, 0x0246, 0x0708, 0x06CA, 0x048C, 0x054E,
440 0x0E10, 0x0FD2, 0x0D94, 0x0C56, 0x0918, 0x08DA, 0x0A9C, 0x0B5E,
441 0x1C20, 0x1DE2, 0x1FA4, 0x1E66, 0x1B28, 0x1AEA, 0x18AC, 0x196E,
442 0x1230, 0x13F2, 0x11B4, 0x1076, 0x1538, 0x14FA, 0x16BC, 0x177E,
443 0x3840, 0x3982, 0x3BC4, 0x3A06, 0x3F48, 0x3E8A, 0x3CCC, 0x3D0E,
444 0x3650, 0x3792, 0x35D4, 0x3416, 0x3158, 0x309A, 0x32DC, 0x331E,
445 0x2460, 0x25A2, 0x27E4, 0x2626, 0x2368, 0x22AA, 0x20EC, 0x212E,
446 0x2A70, 0x2BB2, 0x29F4, 0x2836, 0x2D78, 0x2CBA, 0x2EFC, 0x2F3E,
447 0x7080, 0x7142, 0x7304, 0x72C6, 0x7788, 0x764A, 0x740C, 0x75CE,
448 0x7E90, 0x7F52, 0x7D14, 0x7CD6, 0x7998, 0x785A, 0x7A1C, 0x7BDE,
449 0x6CA0, 0x6D62, 0x6F24, 0x6EE6, 0x6BA8, 0x6A6A, 0x682C, 0x69EE,
450 0x62B0, 0x6372, 0x6134, 0x60F6, 0x65B8, 0x647A, 0x663C, 0x67FE,
451 0x48C0, 0x4902, 0x4B44, 0x4A86, 0x4FC8, 0x4E0A, 0x4C4C, 0x4D8E,
452 0x46D0, 0x4712, 0x4554, 0x4496, 0x41D8, 0x401A, 0x425C, 0x439E,
453 0x54E0, 0x5522, 0x5764, 0x56A6, 0x53E8, 0x522A, 0x506C, 0x51AE,
454 0x5AF0, 0x5B32, 0x5974, 0x58B6, 0x5DF8, 0x5C3A, 0x5E7C, 0x5FBE,
455 0xE100, 0xE0C2, 0xE284, 0xE346, 0xE608, 0xE7CA, 0xE58C, 0xE44E,
456 0xEF10, 0xEED2, 0xEC94, 0xED56, 0xE818, 0xE9DA, 0xEB9C, 0xEA5E,
457 0xFD20, 0xFCE2, 0xFEA4, 0xFF66, 0xFA28, 0xFBEA, 0xF9AC, 0xF86E,
458 0xF330, 0xF2F2, 0xF0B4, 0xF176, 0xF438, 0xF5FA, 0xF7BC, 0xF67E,
459 0xD940, 0xD882, 0xDAC4, 0xDB06, 0xDE48, 0xDF8A, 0xDDCC, 0xDC0E,
460 0xD750, 0xD692, 0xD4D4, 0xD516, 0xD058, 0xD19A, 0xD3DC, 0xD21E,
461 0xC560, 0xC4A2, 0xC6E4, 0xC726, 0xC268, 0xC3AA, 0xC1EC, 0xC02E,
462 0xCB70, 0xCAB2, 0xC8F4, 0xC936, 0xCC78, 0xCDBA, 0xCFFC, 0xCE3E,
463 0x9180, 0x9042, 0x9204, 0x93C6, 0x9688, 0x974A, 0x950C, 0x94CE,
464 0x9F90, 0x9E52, 0x9C14, 0x9DD6, 0x9898, 0x995A, 0x9B1C, 0x9ADE,
465 0x8DA0, 0x8C62, 0x8E24, 0x8FE6, 0x8AA8, 0x8B6A, 0x892C, 0x88EE,
466 0x83B0, 0x8272, 0x8034, 0x81F6, 0x84B8, 0x857A, 0x873C, 0x86FE,
467 0xA9C0, 0xA802, 0xAA44, 0xAB86, 0xAEC8, 0xAF0A, 0xAD4C, 0xAC8E,
468 0xA7D0, 0xA612, 0xA454, 0xA596, 0xA0D8, 0xA11A, 0xA35C, 0xA29E,
469 0xB5E0, 0xB422, 0xB664, 0xB7A6, 0xB2E8, 0xB32A, 0xB16C, 0xB0AE,
470 0xBBF0, 0xBA32, 0xB874, 0xB9B6, 0xBCF8, 0xBD3A, 0xBF7C, 0xBEBE
473 * This pre-processing phase slows down procedure by approximately
474 * same time as it makes each loop spin faster. In other words
475 * single block performance is approximately same as straightforward
476 * "4-bit" implementation, and then it goes only faster...
478 for (cnt = 0; cnt < 16; ++cnt) {
479 Z.hi = Htable[cnt].hi;
480 Z.lo = Htable[cnt].lo;
481 Hshr4[cnt].lo = (Z.hi << 60) | (Z.lo >> 4);
482 Hshr4[cnt].hi = (Z.hi >> 4);
483 Hshl4[cnt] = (u8)(Z.lo << 4);
487 for (Z.lo = 0, Z.hi = 0, cnt = 15; cnt; --cnt) {
488 nlo = ((const u8 *)Xi)[cnt];
493 Z.hi ^= Htable[nlo].hi;
494 Z.lo ^= Htable[nlo].lo;
496 rem = (size_t)Z.lo & 0xff;
498 Z.lo = (Z.hi << 56) | (Z.lo >> 8);
501 Z.hi ^= Hshr4[nhi].hi;
502 Z.lo ^= Hshr4[nhi].lo;
503 Z.hi ^= (u64)rem_8bit[rem ^ Hshl4[nhi]] << 48;
506 nlo = ((const u8 *)Xi)[0];
511 Z.hi ^= Htable[nlo].hi;
512 Z.lo ^= Htable[nlo].lo;
514 rem = (size_t)Z.lo & 0xf;
516 Z.lo = (Z.hi << 60) | (Z.lo >> 4);
519 Z.hi ^= Htable[nhi].hi;
520 Z.lo ^= Htable[nhi].lo;
521 Z.hi ^= ((u64)rem_8bit[rem << 4]) << 48;
524 if (is_endian.little) {
526 Xi[0] = BSWAP8(Z.hi);
527 Xi[1] = BSWAP8(Z.lo);
531 v = (u32)(Z.hi >> 32);
535 v = (u32)(Z.lo >> 32);
544 } while (inp += 16, len -= 16);
548 void gcm_gmult_4bit(u64 Xi[2], const u128 Htable[16]);
549 void gcm_ghash_4bit(u64 Xi[2], const u128 Htable[16], const u8 *inp,
553 # define GCM_MUL(ctx,Xi) gcm_gmult_4bit(ctx->Xi.u,ctx->Htable)
554 # if defined(GHASH_ASM) || !defined(OPENSSL_SMALL_FOOTPRINT)
555 # define GHASH(ctx,in,len) gcm_ghash_4bit((ctx)->Xi.u,(ctx)->Htable,in,len)
557 * GHASH_CHUNK is "stride parameter" missioned to mitigate cache trashing
558 * effect. In other words idea is to hash data while it's still in L1 cache
559 * after encryption pass...
561 # define GHASH_CHUNK (3*1024)
564 #else /* TABLE_BITS */
566 static void gcm_gmult_1bit(u64 Xi[2], const u64 H[2])
568 u128 V, Z = { 0, 0 };
571 const long *xi = (const long *)Xi;
577 V.hi = H[0]; /* H is in host byte order, no byte swapping */
580 for (j = 0; j < 16 / sizeof(long); ++j) {
581 if (is_endian.little) {
582 if (sizeof(long) == 8) {
584 X = (long)(BSWAP8(xi[j]));
586 const u8 *p = (const u8 *)(xi + j);
587 X = (long)((u64)GETU32(p) << 32 | GETU32(p + 4));
590 const u8 *p = (const u8 *)(xi + j);
596 for (i = 0; i < 8 * sizeof(long); ++i, X <<= 1) {
597 u64 M = (u64)(X >> (8 * sizeof(long) - 1));
605 if (is_endian.little) {
607 Xi[0] = BSWAP8(Z.hi);
608 Xi[1] = BSWAP8(Z.lo);
612 v = (u32)(Z.hi >> 32);
616 v = (u32)(Z.lo >> 32);
627 # define GCM_MUL(ctx,Xi) gcm_gmult_1bit(ctx->Xi.u,ctx->H.u)
631 #if TABLE_BITS==4 && (defined(GHASH_ASM) || defined(OPENSSL_CPUID_OBJ))
632 # if !defined(I386_ONLY) && \
633 (defined(__i386) || defined(__i386__) || \
634 defined(__x86_64) || defined(__x86_64__) || \
635 defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64))
636 # define GHASH_ASM_X86_OR_64
637 # define GCM_FUNCREF_4BIT
638 extern unsigned int OPENSSL_ia32cap_P[];
640 void gcm_init_clmul(u128 Htable[16], const u64 Xi[2]);
641 void gcm_gmult_clmul(u64 Xi[2], const u128 Htable[16]);
642 void gcm_ghash_clmul(u64 Xi[2], const u128 Htable[16], const u8 *inp,
645 # if defined(__i386) || defined(__i386__) || defined(_M_IX86)
646 # define gcm_init_avx gcm_init_clmul
647 # define gcm_gmult_avx gcm_gmult_clmul
648 # define gcm_ghash_avx gcm_ghash_clmul
650 void gcm_init_avx(u128 Htable[16], const u64 Xi[2]);
651 void gcm_gmult_avx(u64 Xi[2], const u128 Htable[16]);
652 void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *inp,
656 # if defined(__i386) || defined(__i386__) || defined(_M_IX86)
657 # define GHASH_ASM_X86
658 void gcm_gmult_4bit_mmx(u64 Xi[2], const u128 Htable[16]);
659 void gcm_ghash_4bit_mmx(u64 Xi[2], const u128 Htable[16], const u8 *inp,
662 void gcm_gmult_4bit_x86(u64 Xi[2], const u128 Htable[16]);
663 void gcm_ghash_4bit_x86(u64 Xi[2], const u128 Htable[16], const u8 *inp,
666 # elif defined(__arm__) || defined(__arm) || defined(__aarch64__)
667 # include "arm_arch.h"
668 # if __ARM_MAX_ARCH__>=7
669 # define GHASH_ASM_ARM
670 # define GCM_FUNCREF_4BIT
671 # define PMULL_CAPABLE (OPENSSL_armcap_P & ARMV8_PMULL)
672 # if defined(__arm__) || defined(__arm)
673 # define NEON_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
675 void gcm_init_neon(u128 Htable[16], const u64 Xi[2]);
676 void gcm_gmult_neon(u64 Xi[2], const u128 Htable[16]);
677 void gcm_ghash_neon(u64 Xi[2], const u128 Htable[16], const u8 *inp,
679 void gcm_init_v8(u128 Htable[16], const u64 Xi[2]);
680 void gcm_gmult_v8(u64 Xi[2], const u128 Htable[16]);
681 void gcm_ghash_v8(u64 Xi[2], const u128 Htable[16], const u8 *inp,
684 # elif defined(__sparc__) || defined(__sparc)
685 # include "sparc_arch.h"
686 # define GHASH_ASM_SPARC
687 # define GCM_FUNCREF_4BIT
688 extern unsigned int OPENSSL_sparcv9cap_P[];
689 void gcm_init_vis3(u128 Htable[16], const u64 Xi[2]);
690 void gcm_gmult_vis3(u64 Xi[2], const u128 Htable[16]);
691 void gcm_ghash_vis3(u64 Xi[2], const u128 Htable[16], const u8 *inp,
693 # elif defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
694 # include "ppc_arch.h"
695 # define GHASH_ASM_PPC
696 # define GCM_FUNCREF_4BIT
697 void gcm_init_p8(u128 Htable[16], const u64 Xi[2]);
698 void gcm_gmult_p8(u64 Xi[2], const u128 Htable[16]);
699 void gcm_ghash_p8(u64 Xi[2], const u128 Htable[16], const u8 *inp,
704 #ifdef GCM_FUNCREF_4BIT
706 # define GCM_MUL(ctx,Xi) (*gcm_gmult_p)(ctx->Xi.u,ctx->Htable)
709 # define GHASH(ctx,in,len) (*gcm_ghash_p)(ctx->Xi.u,ctx->Htable,in,len)
713 void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, void *key, block128_f block)
720 memset(ctx, 0, sizeof(*ctx));
724 (*block) (ctx->H.c, ctx->H.c, key);
726 if (is_endian.little) {
727 /* H is stored in host byte order */
729 ctx->H.u[0] = BSWAP8(ctx->H.u[0]);
730 ctx->H.u[1] = BSWAP8(ctx->H.u[1]);
734 hi = (u64)GETU32(p) << 32 | GETU32(p + 4);
735 lo = (u64)GETU32(p + 8) << 32 | GETU32(p + 12);
741 gcm_init_8bit(ctx->Htable, ctx->H.u);
744 # define CTX__GHASH(f) (ctx->ghash = (f))
746 # define CTX__GHASH(f) (ctx->ghash = NULL)
748 # if defined(GHASH_ASM_X86_OR_64)
749 # if !defined(GHASH_ASM_X86) || defined(OPENSSL_IA32_SSE2)
750 if (OPENSSL_ia32cap_P[0] & (1 << 24) && /* check FXSR bit */
751 OPENSSL_ia32cap_P[1] & (1 << 1)) { /* check PCLMULQDQ bit */
752 if (((OPENSSL_ia32cap_P[1] >> 22) & 0x41) == 0x41) { /* AVX+MOVBE */
753 gcm_init_avx(ctx->Htable, ctx->H.u);
754 ctx->gmult = gcm_gmult_avx;
755 CTX__GHASH(gcm_ghash_avx);
757 gcm_init_clmul(ctx->Htable, ctx->H.u);
758 ctx->gmult = gcm_gmult_clmul;
759 CTX__GHASH(gcm_ghash_clmul);
764 gcm_init_4bit(ctx->Htable, ctx->H.u);
765 # if defined(GHASH_ASM_X86) /* x86 only */
766 # if defined(OPENSSL_IA32_SSE2)
767 if (OPENSSL_ia32cap_P[0] & (1 << 25)) { /* check SSE bit */
769 if (OPENSSL_ia32cap_P[0] & (1 << 23)) { /* check MMX bit */
771 ctx->gmult = gcm_gmult_4bit_mmx;
772 CTX__GHASH(gcm_ghash_4bit_mmx);
774 ctx->gmult = gcm_gmult_4bit_x86;
775 CTX__GHASH(gcm_ghash_4bit_x86);
778 ctx->gmult = gcm_gmult_4bit;
779 CTX__GHASH(gcm_ghash_4bit);
781 # elif defined(GHASH_ASM_ARM)
782 # ifdef PMULL_CAPABLE
784 gcm_init_v8(ctx->Htable, ctx->H.u);
785 ctx->gmult = gcm_gmult_v8;
786 CTX__GHASH(gcm_ghash_v8);
791 gcm_init_neon(ctx->Htable, ctx->H.u);
792 ctx->gmult = gcm_gmult_neon;
793 CTX__GHASH(gcm_ghash_neon);
797 gcm_init_4bit(ctx->Htable, ctx->H.u);
798 ctx->gmult = gcm_gmult_4bit;
799 CTX__GHASH(gcm_ghash_4bit);
801 # elif defined(GHASH_ASM_SPARC)
802 if (OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3) {
803 gcm_init_vis3(ctx->Htable, ctx->H.u);
804 ctx->gmult = gcm_gmult_vis3;
805 CTX__GHASH(gcm_ghash_vis3);
807 gcm_init_4bit(ctx->Htable, ctx->H.u);
808 ctx->gmult = gcm_gmult_4bit;
809 CTX__GHASH(gcm_ghash_4bit);
811 # elif defined(GHASH_ASM_PPC)
812 if (OPENSSL_ppccap_P & PPC_CRYPTO207) {
813 gcm_init_p8(ctx->Htable, ctx->H.u);
814 ctx->gmult = gcm_gmult_p8;
815 CTX__GHASH(gcm_ghash_p8);
817 gcm_init_4bit(ctx->Htable, ctx->H.u);
818 ctx->gmult = gcm_gmult_4bit;
819 CTX__GHASH(gcm_ghash_4bit);
822 gcm_init_4bit(ctx->Htable, ctx->H.u);
828 void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const unsigned char *iv,
836 #ifdef GCM_FUNCREF_4BIT
837 void (*gcm_gmult_p) (u64 Xi[2], const u128 Htable[16]) = ctx->gmult;
844 ctx->len.u[0] = 0; /* AAD length */
845 ctx->len.u[1] = 0; /* message length */
850 memcpy(ctx->Yi.c, iv, 12);
858 for (i = 0; i < 16; ++i)
859 ctx->Yi.c[i] ^= iv[i];
865 for (i = 0; i < len; ++i)
866 ctx->Yi.c[i] ^= iv[i];
870 if (is_endian.little) {
872 ctx->Yi.u[1] ^= BSWAP8(len0);
874 ctx->Yi.c[8] ^= (u8)(len0 >> 56);
875 ctx->Yi.c[9] ^= (u8)(len0 >> 48);
876 ctx->Yi.c[10] ^= (u8)(len0 >> 40);
877 ctx->Yi.c[11] ^= (u8)(len0 >> 32);
878 ctx->Yi.c[12] ^= (u8)(len0 >> 24);
879 ctx->Yi.c[13] ^= (u8)(len0 >> 16);
880 ctx->Yi.c[14] ^= (u8)(len0 >> 8);
881 ctx->Yi.c[15] ^= (u8)(len0);
884 ctx->Yi.u[1] ^= len0;
888 if (is_endian.little)
890 ctr = BSWAP4(ctx->Yi.d[3]);
892 ctr = GETU32(ctx->Yi.c + 12);
898 (*ctx->block) (ctx->Yi.c, ctx->EK0.c, ctx->key);
900 if (is_endian.little)
902 ctx->Yi.d[3] = BSWAP4(ctr);
904 PUTU32(ctx->Yi.c + 12, ctr);
910 int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const unsigned char *aad,
915 u64 alen = ctx->len.u[0];
916 #ifdef GCM_FUNCREF_4BIT
917 void (*gcm_gmult_p) (u64 Xi[2], const u128 Htable[16]) = ctx->gmult;
919 void (*gcm_ghash_p) (u64 Xi[2], const u128 Htable[16],
920 const u8 *inp, size_t len) = ctx->ghash;
928 if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len))
930 ctx->len.u[0] = alen;
935 ctx->Xi.c[n] ^= *(aad++);
947 if ((i = (len & (size_t)-16))) {
954 for (i = 0; i < 16; ++i)
955 ctx->Xi.c[i] ^= aad[i];
962 n = (unsigned int)len;
963 for (i = 0; i < len; ++i)
964 ctx->Xi.c[i] ^= aad[i];
971 int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx,
972 const unsigned char *in, unsigned char *out,
981 u64 mlen = ctx->len.u[1];
982 block128_f block = ctx->block;
983 void *key = ctx->key;
984 #ifdef GCM_FUNCREF_4BIT
985 void (*gcm_gmult_p) (u64 Xi[2], const u128 Htable[16]) = ctx->gmult;
986 # if defined(GHASH) && !defined(OPENSSL_SMALL_FOOTPRINT)
987 void (*gcm_ghash_p) (u64 Xi[2], const u128 Htable[16],
988 const u8 *inp, size_t len) = ctx->ghash;
993 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
995 ctx->len.u[1] = mlen;
998 /* First call to encrypt finalizes GHASH(AAD) */
1003 if (is_endian.little)
1005 ctr = BSWAP4(ctx->Yi.d[3]);
1007 ctr = GETU32(ctx->Yi.c + 12);
1013 #if !defined(OPENSSL_SMALL_FOOTPRINT)
1014 if (16 % sizeof(size_t) == 0) { /* always true actually */
1018 ctx->Xi.c[n] ^= *(out++) = *(in++) ^ ctx->EKi.c[n];
1029 # if defined(STRICT_ALIGNMENT)
1030 if (((size_t)in | (size_t)out) % sizeof(size_t) != 0)
1034 # if defined(GHASH_CHUNK)
1035 while (len >= GHASH_CHUNK) {
1036 size_t j = GHASH_CHUNK;
1039 size_t *out_t = (size_t *)out;
1040 const size_t *in_t = (const size_t *)in;
1042 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1044 if (is_endian.little)
1046 ctx->Yi.d[3] = BSWAP4(ctr);
1048 PUTU32(ctx->Yi.c + 12, ctr);
1052 for (i = 0; i < 16 / sizeof(size_t); ++i)
1053 out_t[i] = in_t[i] ^ ctx->EKi.t[i];
1058 GHASH(ctx, out - GHASH_CHUNK, GHASH_CHUNK);
1062 if ((i = (len & (size_t)-16))) {
1066 size_t *out_t = (size_t *)out;
1067 const size_t *in_t = (const size_t *)in;
1069 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1071 if (is_endian.little)
1073 ctx->Yi.d[3] = BSWAP4(ctr);
1075 PUTU32(ctx->Yi.c + 12, ctr);
1079 for (i = 0; i < 16 / sizeof(size_t); ++i)
1080 out_t[i] = in_t[i] ^ ctx->EKi.t[i];
1085 GHASH(ctx, out - j, j);
1089 size_t *out_t = (size_t *)out;
1090 const size_t *in_t = (const size_t *)in;
1092 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1094 if (is_endian.little)
1096 ctx->Yi.d[3] = BSWAP4(ctr);
1098 PUTU32(ctx->Yi.c + 12, ctr);
1102 for (i = 0; i < 16 / sizeof(size_t); ++i)
1103 ctx->Xi.t[i] ^= out_t[i] = in_t[i] ^ ctx->EKi.t[i];
1111 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1113 if (is_endian.little)
1115 ctx->Yi.d[3] = BSWAP4(ctr);
1117 PUTU32(ctx->Yi.c + 12, ctr);
1122 ctx->Xi.c[n] ^= out[n] = in[n] ^ ctx->EKi.c[n];
1132 for (i = 0; i < len; ++i) {
1134 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1136 if (is_endian.little)
1138 ctx->Yi.d[3] = BSWAP4(ctr);
1140 PUTU32(ctx->Yi.c + 12, ctr);
1145 ctx->Xi.c[n] ^= out[i] = in[i] ^ ctx->EKi.c[n];
1155 int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx,
1156 const unsigned char *in, unsigned char *out,
1162 } is_endian = { 1 };
1163 unsigned int n, ctr;
1165 u64 mlen = ctx->len.u[1];
1166 block128_f block = ctx->block;
1167 void *key = ctx->key;
1168 #ifdef GCM_FUNCREF_4BIT
1169 void (*gcm_gmult_p) (u64 Xi[2], const u128 Htable[16]) = ctx->gmult;
1170 # if defined(GHASH) && !defined(OPENSSL_SMALL_FOOTPRINT)
1171 void (*gcm_ghash_p) (u64 Xi[2], const u128 Htable[16],
1172 const u8 *inp, size_t len) = ctx->ghash;
1177 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1179 ctx->len.u[1] = mlen;
1182 /* First call to decrypt finalizes GHASH(AAD) */
1187 if (is_endian.little)
1189 ctr = BSWAP4(ctx->Yi.d[3]);
1191 ctr = GETU32(ctx->Yi.c + 12);
1197 #if !defined(OPENSSL_SMALL_FOOTPRINT)
1198 if (16 % sizeof(size_t) == 0) { /* always true actually */
1203 *(out++) = c ^ ctx->EKi.c[n];
1215 # if defined(STRICT_ALIGNMENT)
1216 if (((size_t)in | (size_t)out) % sizeof(size_t) != 0)
1220 # if defined(GHASH_CHUNK)
1221 while (len >= GHASH_CHUNK) {
1222 size_t j = GHASH_CHUNK;
1224 GHASH(ctx, in, GHASH_CHUNK);
1226 size_t *out_t = (size_t *)out;
1227 const size_t *in_t = (const size_t *)in;
1229 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1231 if (is_endian.little)
1233 ctx->Yi.d[3] = BSWAP4(ctr);
1235 PUTU32(ctx->Yi.c + 12, ctr);
1239 for (i = 0; i < 16 / sizeof(size_t); ++i)
1240 out_t[i] = in_t[i] ^ ctx->EKi.t[i];
1248 if ((i = (len & (size_t)-16))) {
1251 size_t *out_t = (size_t *)out;
1252 const size_t *in_t = (const size_t *)in;
1254 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1256 if (is_endian.little)
1258 ctx->Yi.d[3] = BSWAP4(ctr);
1260 PUTU32(ctx->Yi.c + 12, ctr);
1264 for (i = 0; i < 16 / sizeof(size_t); ++i)
1265 out_t[i] = in_t[i] ^ ctx->EKi.t[i];
1273 size_t *out_t = (size_t *)out;
1274 const size_t *in_t = (const size_t *)in;
1276 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1278 if (is_endian.little)
1280 ctx->Yi.d[3] = BSWAP4(ctr);
1282 PUTU32(ctx->Yi.c + 12, ctr);
1286 for (i = 0; i < 16 / sizeof(size_t); ++i) {
1288 out[i] = c ^ ctx->EKi.t[i];
1298 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1300 if (is_endian.little)
1302 ctx->Yi.d[3] = BSWAP4(ctr);
1304 PUTU32(ctx->Yi.c + 12, ctr);
1311 out[n] = c ^ ctx->EKi.c[n];
1321 for (i = 0; i < len; ++i) {
1324 (*block) (ctx->Yi.c, ctx->EKi.c, key);
1326 if (is_endian.little)
1328 ctx->Yi.d[3] = BSWAP4(ctr);
1330 PUTU32(ctx->Yi.c + 12, ctr);
1336 out[i] = c ^ ctx->EKi.c[n];
1347 int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx,
1348 const unsigned char *in, unsigned char *out,
1349 size_t len, ctr128_f stream)
1351 #if defined(OPENSSL_SMALL_FOOTPRINT)
1352 return CRYPTO_gcm128_encrypt(ctx, in, out, len);
1357 } is_endian = { 1 };
1358 unsigned int n, ctr;
1360 u64 mlen = ctx->len.u[1];
1361 void *key = ctx->key;
1362 # ifdef GCM_FUNCREF_4BIT
1363 void (*gcm_gmult_p) (u64 Xi[2], const u128 Htable[16]) = ctx->gmult;
1365 void (*gcm_ghash_p) (u64 Xi[2], const u128 Htable[16],
1366 const u8 *inp, size_t len) = ctx->ghash;
1371 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1373 ctx->len.u[1] = mlen;
1376 /* First call to encrypt finalizes GHASH(AAD) */
1381 if (is_endian.little)
1383 ctr = BSWAP4(ctx->Yi.d[3]);
1385 ctr = GETU32(ctx->Yi.c + 12);
1393 ctx->Xi.c[n] ^= *(out++) = *(in++) ^ ctx->EKi.c[n];
1404 # if defined(GHASH) && defined(GHASH_CHUNK)
1405 while (len >= GHASH_CHUNK) {
1406 (*stream) (in, out, GHASH_CHUNK / 16, key, ctx->Yi.c);
1407 ctr += GHASH_CHUNK / 16;
1408 if (is_endian.little)
1410 ctx->Yi.d[3] = BSWAP4(ctr);
1412 PUTU32(ctx->Yi.c + 12, ctr);
1416 GHASH(ctx, out, GHASH_CHUNK);
1422 if ((i = (len & (size_t)-16))) {
1425 (*stream) (in, out, j, key, ctx->Yi.c);
1426 ctr += (unsigned int)j;
1427 if (is_endian.little)
1429 ctx->Yi.d[3] = BSWAP4(ctr);
1431 PUTU32(ctx->Yi.c + 12, ctr);
1442 for (i = 0; i < 16; ++i)
1443 ctx->Xi.c[i] ^= out[i];
1450 (*ctx->block) (ctx->Yi.c, ctx->EKi.c, key);
1452 if (is_endian.little)
1454 ctx->Yi.d[3] = BSWAP4(ctr);
1456 PUTU32(ctx->Yi.c + 12, ctr);
1461 ctx->Xi.c[n] ^= out[n] = in[n] ^ ctx->EKi.c[n];
1471 int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx,
1472 const unsigned char *in, unsigned char *out,
1473 size_t len, ctr128_f stream)
1475 #if defined(OPENSSL_SMALL_FOOTPRINT)
1476 return CRYPTO_gcm128_decrypt(ctx, in, out, len);
1481 } is_endian = { 1 };
1482 unsigned int n, ctr;
1484 u64 mlen = ctx->len.u[1];
1485 void *key = ctx->key;
1486 # ifdef GCM_FUNCREF_4BIT
1487 void (*gcm_gmult_p) (u64 Xi[2], const u128 Htable[16]) = ctx->gmult;
1489 void (*gcm_ghash_p) (u64 Xi[2], const u128 Htable[16],
1490 const u8 *inp, size_t len) = ctx->ghash;
1495 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1497 ctx->len.u[1] = mlen;
1500 /* First call to decrypt finalizes GHASH(AAD) */
1505 if (is_endian.little)
1507 ctr = BSWAP4(ctx->Yi.d[3]);
1509 ctr = GETU32(ctx->Yi.c + 12);
1518 *(out++) = c ^ ctx->EKi.c[n];
1530 # if defined(GHASH) && defined(GHASH_CHUNK)
1531 while (len >= GHASH_CHUNK) {
1532 GHASH(ctx, in, GHASH_CHUNK);
1533 (*stream) (in, out, GHASH_CHUNK / 16, key, ctx->Yi.c);
1534 ctr += GHASH_CHUNK / 16;
1535 if (is_endian.little)
1537 ctx->Yi.d[3] = BSWAP4(ctr);
1539 PUTU32(ctx->Yi.c + 12, ctr);
1548 if ((i = (len & (size_t)-16))) {
1556 for (k = 0; k < 16; ++k)
1557 ctx->Xi.c[k] ^= in[k];
1564 (*stream) (in, out, j, key, ctx->Yi.c);
1565 ctr += (unsigned int)j;
1566 if (is_endian.little)
1568 ctx->Yi.d[3] = BSWAP4(ctr);
1570 PUTU32(ctx->Yi.c + 12, ctr);
1579 (*ctx->block) (ctx->Yi.c, ctx->EKi.c, key);
1581 if (is_endian.little)
1583 ctx->Yi.d[3] = BSWAP4(ctr);
1585 PUTU32(ctx->Yi.c + 12, ctr);
1592 out[n] = c ^ ctx->EKi.c[n];
1602 int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx, const unsigned char *tag,
1608 } is_endian = { 1 };
1609 u64 alen = ctx->len.u[0] << 3;
1610 u64 clen = ctx->len.u[1] << 3;
1611 #ifdef GCM_FUNCREF_4BIT
1612 void (*gcm_gmult_p) (u64 Xi[2], const u128 Htable[16]) = ctx->gmult;
1615 if (ctx->mres || ctx->ares)
1618 if (is_endian.little) {
1620 alen = BSWAP8(alen);
1621 clen = BSWAP8(clen);
1625 ctx->len.u[0] = alen;
1626 ctx->len.u[1] = clen;
1628 alen = (u64)GETU32(p) << 32 | GETU32(p + 4);
1629 clen = (u64)GETU32(p + 8) << 32 | GETU32(p + 12);
1633 ctx->Xi.u[0] ^= alen;
1634 ctx->Xi.u[1] ^= clen;
1637 ctx->Xi.u[0] ^= ctx->EK0.u[0];
1638 ctx->Xi.u[1] ^= ctx->EK0.u[1];
1640 if (tag && len <= sizeof(ctx->Xi))
1641 return CRYPTO_memcmp(ctx->Xi.c, tag, len);
1646 void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, unsigned char *tag, size_t len)
1648 CRYPTO_gcm128_finish(ctx, NULL, 0);
1649 memcpy(tag, ctx->Xi.c,
1650 len <= sizeof(ctx->Xi.c) ? len : sizeof(ctx->Xi.c));
1653 GCM128_CONTEXT *CRYPTO_gcm128_new(void *key, block128_f block)
1655 GCM128_CONTEXT *ret;
1657 if ((ret = OPENSSL_malloc(sizeof(*ret))) != NULL)
1658 CRYPTO_gcm128_init(ret, key, block);
1663 void CRYPTO_gcm128_release(GCM128_CONTEXT *ctx)
1665 OPENSSL_clear_free(ctx, sizeof(*ctx));
1668 #if defined(SELFTEST)
1670 # include <openssl/aes.h>
1673 static const u8 K1[16], *P1 = NULL, *A1 = NULL, IV1[12], *C1 = NULL;
1674 static const u8 T1[] = {
1675 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61,
1676 0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a
1683 static const u8 P2[16];
1684 static const u8 C2[] = {
1685 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
1686 0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78
1689 static const u8 T2[] = {
1690 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,
1691 0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf
1696 static const u8 K3[] = {
1697 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
1698 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08
1701 static const u8 P3[] = {
1702 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
1703 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
1704 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
1705 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
1706 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
1707 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
1708 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
1709 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55
1712 static const u8 IV3[] = {
1713 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
1714 0xde, 0xca, 0xf8, 0x88
1717 static const u8 C3[] = {
1718 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
1719 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
1720 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
1721 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
1722 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
1723 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
1724 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
1725 0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85
1728 static const u8 T3[] = {
1729 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6,
1730 0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4
1736 static const u8 P4[] = {
1737 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
1738 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
1739 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
1740 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
1741 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
1742 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
1743 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
1744 0xba, 0x63, 0x7b, 0x39
1747 static const u8 A4[] = {
1748 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
1749 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
1750 0xab, 0xad, 0xda, 0xd2
1753 static const u8 C4[] = {
1754 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
1755 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
1756 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
1757 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
1758 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
1759 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
1760 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
1761 0x3d, 0x58, 0xe0, 0x91
1764 static const u8 T4[] = {
1765 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb,
1766 0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47
1773 static const u8 IV5[] = {
1774 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad
1777 static const u8 C5[] = {
1778 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a,
1779 0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55,
1780 0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8,
1781 0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23,
1782 0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2,
1783 0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42,
1784 0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07,
1785 0xc2, 0x3f, 0x45, 0x98
1788 static const u8 T5[] = {
1789 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85,
1790 0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb
1797 static const u8 IV6[] = {
1798 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,
1799 0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa,
1800 0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,
1801 0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28,
1802 0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,
1803 0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54,
1804 0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,
1805 0xa6, 0x37, 0xb3, 0x9b
1808 static const u8 C6[] = {
1809 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6,
1810 0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94,
1811 0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8,
1812 0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7,
1813 0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90,
1814 0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f,
1815 0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03,
1816 0x4c, 0x34, 0xae, 0xe5
1819 static const u8 T6[] = {
1820 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa,
1821 0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50
1825 static const u8 K7[24], *P7 = NULL, *A7 = NULL, IV7[12], *C7 = NULL;
1826 static const u8 T7[] = {
1827 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b,
1828 0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35
1835 static const u8 P8[16];
1836 static const u8 C8[] = {
1837 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41,
1838 0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00
1841 static const u8 T8[] = {
1842 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab,
1843 0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb
1848 static const u8 K9[] = {
1849 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
1850 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
1851 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c
1854 static const u8 P9[] = {
1855 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
1856 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
1857 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
1858 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
1859 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
1860 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
1861 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
1862 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55
1865 static const u8 IV9[] = {
1866 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
1867 0xde, 0xca, 0xf8, 0x88
1870 static const u8 C9[] = {
1871 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
1872 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
1873 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
1874 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
1875 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
1876 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
1877 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
1878 0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56
1881 static const u8 T9[] = {
1882 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf,
1883 0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14
1889 static const u8 P10[] = {
1890 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
1891 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
1892 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
1893 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
1894 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
1895 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
1896 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
1897 0xba, 0x63, 0x7b, 0x39
1900 static const u8 A10[] = {
1901 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
1902 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
1903 0xab, 0xad, 0xda, 0xd2
1906 static const u8 C10[] = {
1907 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
1908 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
1909 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
1910 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
1911 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
1912 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
1913 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
1914 0xcc, 0xda, 0x27, 0x10
1917 static const u8 T10[] = {
1918 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f,
1919 0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c
1926 static const u8 IV11[] = { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad };
1928 static const u8 C11[] = {
1929 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54,
1930 0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8,
1931 0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f,
1932 0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57,
1933 0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75,
1934 0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9,
1935 0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f,
1936 0xa0, 0xf0, 0x62, 0xf7
1939 static const u8 T11[] = {
1940 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24,
1941 0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8
1948 static const u8 IV12[] = {
1949 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,
1950 0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa,
1951 0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,
1952 0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28,
1953 0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,
1954 0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54,
1955 0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,
1956 0xa6, 0x37, 0xb3, 0x9b
1959 static const u8 C12[] = {
1960 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c,
1961 0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff,
1962 0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef,
1963 0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45,
1964 0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9,
1965 0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3,
1966 0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7,
1967 0xe9, 0xb7, 0x37, 0x3b
1970 static const u8 T12[] = {
1971 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb,
1972 0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9
1976 static const u8 K13[32], *P13 = NULL, *A13 = NULL, IV13[12], *C13 = NULL;
1977 static const u8 T13[] = {
1978 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9,
1979 0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b
1985 static const u8 P14[16], IV14[12];
1986 static const u8 C14[] = {
1987 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e,
1988 0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18
1991 static const u8 T14[] = {
1992 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0,
1993 0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19
1998 static const u8 K15[] = {
1999 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
2000 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
2001 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
2002 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08
2005 static const u8 P15[] = {
2006 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
2007 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
2008 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
2009 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
2010 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
2011 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
2012 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
2013 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55
2016 static const u8 IV15[] = {
2017 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
2018 0xde, 0xca, 0xf8, 0x88
2021 static const u8 C15[] = {
2022 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
2023 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
2024 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
2025 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
2026 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
2027 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
2028 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
2029 0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad
2032 static const u8 T15[] = {
2033 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd,
2034 0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c
2040 static const u8 P16[] = {
2041 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
2042 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
2043 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
2044 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
2045 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
2046 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
2047 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
2048 0xba, 0x63, 0x7b, 0x39
2051 static const u8 A16[] = {
2052 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
2053 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
2054 0xab, 0xad, 0xda, 0xd2
2057 static const u8 C16[] = {
2058 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
2059 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
2060 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
2061 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
2062 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
2063 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
2064 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
2065 0xbc, 0xc9, 0xf6, 0x62
2068 static const u8 T16[] = {
2069 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68,
2070 0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b
2077 static const u8 IV17[] = { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad };
2079 static const u8 C17[] = {
2080 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32,
2081 0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb,
2082 0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa,
2083 0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0,
2084 0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0,
2085 0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78,
2086 0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99,
2087 0xf4, 0x7c, 0x9b, 0x1f
2090 static const u8 T17[] = {
2091 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4,
2092 0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2
2099 static const u8 IV18[] = {
2100 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,
2101 0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa,
2102 0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,
2103 0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28,
2104 0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,
2105 0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54,
2106 0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,
2107 0xa6, 0x37, 0xb3, 0x9b
2110 static const u8 C18[] = {
2111 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1,
2112 0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20,
2113 0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19,
2114 0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4,
2115 0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45,
2116 0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde,
2117 0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e,
2118 0x44, 0xae, 0x7e, 0x3f
2121 static const u8 T18[] = {
2122 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0,
2123 0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a
2131 static const u8 A19[] = {
2132 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
2133 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
2134 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
2135 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
2136 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
2137 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
2138 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
2139 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55,
2140 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
2141 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
2142 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
2143 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
2144 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
2145 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
2146 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
2147 0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad
2150 static const u8 T19[] = {
2151 0x5f, 0xea, 0x79, 0x3a, 0x2d, 0x6f, 0x97, 0x4d,
2152 0x37, 0xe6, 0x8e, 0x0c, 0xb8, 0xff, 0x94, 0x92
2158 /* this results in 0xff in counter LSB */
2159 static const u8 IV20[64] = { 0xff, 0xff, 0xff, 0xff };
2161 static const u8 P20[288];
2162 static const u8 C20[] = {
2163 0x56, 0xb3, 0x37, 0x3c, 0xa9, 0xef, 0x6e, 0x4a,
2164 0x2b, 0x64, 0xfe, 0x1e, 0x9a, 0x17, 0xb6, 0x14,
2165 0x25, 0xf1, 0x0d, 0x47, 0xa7, 0x5a, 0x5f, 0xce,
2166 0x13, 0xef, 0xc6, 0xbc, 0x78, 0x4a, 0xf2, 0x4f,
2167 0x41, 0x41, 0xbd, 0xd4, 0x8c, 0xf7, 0xc7, 0x70,
2168 0x88, 0x7a, 0xfd, 0x57, 0x3c, 0xca, 0x54, 0x18,
2169 0xa9, 0xae, 0xff, 0xcd, 0x7c, 0x5c, 0xed, 0xdf,
2170 0xc6, 0xa7, 0x83, 0x97, 0xb9, 0xa8, 0x5b, 0x49,
2171 0x9d, 0xa5, 0x58, 0x25, 0x72, 0x67, 0xca, 0xab,
2172 0x2a, 0xd0, 0xb2, 0x3c, 0xa4, 0x76, 0xa5, 0x3c,
2173 0xb1, 0x7f, 0xb4, 0x1c, 0x4b, 0x8b, 0x47, 0x5c,
2174 0xb4, 0xf3, 0xf7, 0x16, 0x50, 0x94, 0xc2, 0x29,
2175 0xc9, 0xe8, 0xc4, 0xdc, 0x0a, 0x2a, 0x5f, 0xf1,
2176 0x90, 0x3e, 0x50, 0x15, 0x11, 0x22, 0x13, 0x76,
2177 0xa1, 0xcd, 0xb8, 0x36, 0x4c, 0x50, 0x61, 0xa2,
2178 0x0c, 0xae, 0x74, 0xbc, 0x4a, 0xcd, 0x76, 0xce,
2179 0xb0, 0xab, 0xc9, 0xfd, 0x32, 0x17, 0xef, 0x9f,
2180 0x8c, 0x90, 0xbe, 0x40, 0x2d, 0xdf, 0x6d, 0x86,
2181 0x97, 0xf4, 0xf8, 0x80, 0xdf, 0xf1, 0x5b, 0xfb,
2182 0x7a, 0x6b, 0x28, 0x24, 0x1e, 0xc8, 0xfe, 0x18,
2183 0x3c, 0x2d, 0x59, 0xe3, 0xf9, 0xdf, 0xff, 0x65,
2184 0x3c, 0x71, 0x26, 0xf0, 0xac, 0xb9, 0xe6, 0x42,
2185 0x11, 0xf4, 0x2b, 0xae, 0x12, 0xaf, 0x46, 0x2b,
2186 0x10, 0x70, 0xbe, 0xf1, 0xab, 0x5e, 0x36, 0x06,
2187 0x87, 0x2c, 0xa1, 0x0d, 0xee, 0x15, 0xb3, 0x24,
2188 0x9b, 0x1a, 0x1b, 0x95, 0x8f, 0x23, 0x13, 0x4c,
2189 0x4b, 0xcc, 0xb7, 0xd0, 0x32, 0x00, 0xbc, 0xe4,
2190 0x20, 0xa2, 0xf8, 0xeb, 0x66, 0xdc, 0xf3, 0x64,
2191 0x4d, 0x14, 0x23, 0xc1, 0xb5, 0x69, 0x90, 0x03,
2192 0xc1, 0x3e, 0xce, 0xf4, 0xbf, 0x38, 0xa3, 0xb6,
2193 0x0e, 0xed, 0xc3, 0x40, 0x33, 0xba, 0xc1, 0x90,
2194 0x27, 0x83, 0xdc, 0x6d, 0x89, 0xe2, 0xe7, 0x74,
2195 0x18, 0x8a, 0x43, 0x9c, 0x7e, 0xbc, 0xc0, 0x67,
2196 0x2d, 0xbd, 0xa4, 0xdd, 0xcf, 0xb2, 0x79, 0x46,
2197 0x13, 0xb0, 0xbe, 0x41, 0x31, 0x5e, 0xf7, 0x78,
2198 0x70, 0x8a, 0x70, 0xee, 0x7d, 0x75, 0x16, 0x5c
2201 static const u8 T20[] = {
2202 0x8b, 0x30, 0x7f, 0x6b, 0x33, 0x28, 0x6d, 0x0a,
2203 0xb0, 0x26, 0xa9, 0xed, 0x3f, 0xe1, 0xe8, 0x5f
2206 # define TEST_CASE(n) do { \
2207 u8 out[sizeof(P##n)]; \
2208 AES_set_encrypt_key(K##n,sizeof(K##n)*8,&key); \
2209 CRYPTO_gcm128_init(&ctx,&key,(block128_f)AES_encrypt); \
2210 CRYPTO_gcm128_setiv(&ctx,IV##n,sizeof(IV##n)); \
2211 memset(out,0,sizeof(out)); \
2212 if (A##n) CRYPTO_gcm128_aad(&ctx,A##n,sizeof(A##n)); \
2213 if (P##n) CRYPTO_gcm128_encrypt(&ctx,P##n,out,sizeof(out)); \
2214 if (CRYPTO_gcm128_finish(&ctx,T##n,16) || \
2215 (C##n && memcmp(out,C##n,sizeof(out)))) \
2216 ret++, printf ("encrypt test#%d failed.\n",n); \
2217 CRYPTO_gcm128_setiv(&ctx,IV##n,sizeof(IV##n)); \
2218 memset(out,0,sizeof(out)); \
2219 if (A##n) CRYPTO_gcm128_aad(&ctx,A##n,sizeof(A##n)); \
2220 if (C##n) CRYPTO_gcm128_decrypt(&ctx,C##n,out,sizeof(out)); \
2221 if (CRYPTO_gcm128_finish(&ctx,T##n,16) || \
2222 (P##n && memcmp(out,P##n,sizeof(out)))) \
2223 ret++, printf ("decrypt test#%d failed.\n",n); \
2253 # ifdef OPENSSL_CPUID_OBJ
2255 size_t start, stop, gcm_t, ctr_t, OPENSSL_rdtsc();
2262 AES_set_encrypt_key(K1, sizeof(K1) * 8, &key);
2263 CRYPTO_gcm128_init(&ctx, &key, (block128_f) AES_encrypt);
2264 CRYPTO_gcm128_setiv(&ctx, IV1, sizeof(IV1));
2266 CRYPTO_gcm128_encrypt(&ctx, buf.c, buf.c, sizeof(buf));
2267 start = OPENSSL_rdtsc();
2268 CRYPTO_gcm128_encrypt(&ctx, buf.c, buf.c, sizeof(buf));
2269 gcm_t = OPENSSL_rdtsc() - start;
2271 CRYPTO_ctr128_encrypt(buf.c, buf.c, sizeof(buf),
2272 &key, ctx.Yi.c, ctx.EKi.c, &ctx.mres,
2273 (block128_f) AES_encrypt);
2274 start = OPENSSL_rdtsc();
2275 CRYPTO_ctr128_encrypt(buf.c, buf.c, sizeof(buf),
2276 &key, ctx.Yi.c, ctx.EKi.c, &ctx.mres,
2277 (block128_f) AES_encrypt);
2278 ctr_t = OPENSSL_rdtsc() - start;
2280 printf("%.2f-%.2f=%.2f\n",
2281 gcm_t / (double)sizeof(buf),
2282 ctr_t / (double)sizeof(buf),
2283 (gcm_t - ctr_t) / (double)sizeof(buf));
2286 void (*gcm_ghash_p) (u64 Xi[2], const u128 Htable[16],
2287 const u8 *inp, size_t len) = ctx.ghash;
2289 GHASH((&ctx), buf.c, sizeof(buf));
2290 start = OPENSSL_rdtsc();
2291 for (i = 0; i < 100; ++i)
2292 GHASH((&ctx), buf.c, sizeof(buf));
2293 gcm_t = OPENSSL_rdtsc() - start;
2294 printf("%.2f\n", gcm_t / (double)sizeof(buf) / (double)i);