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1 | /* ==================================================================== |
2 | * Copyright (c) 2010 The OpenSSL Project. All rights reserved. | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions | |
6 | * are met: | |
7 | * | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in | |
13 | * the documentation and/or other materials provided with the | |
14 | * distribution. | |
15 | * | |
16 | * 3. All advertising materials mentioning features or use of this | |
17 | * software must display the following acknowledgment: | |
18 | * "This product includes software developed by the OpenSSL Project | |
19 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
20 | * | |
21 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
22 | * endorse or promote products derived from this software without | |
23 | * prior written permission. For written permission, please contact | |
24 | * openssl-core@openssl.org. | |
25 | * | |
26 | * 5. Products derived from this software may not be called "OpenSSL" | |
27 | * nor may "OpenSSL" appear in their names without prior written | |
28 | * permission of the OpenSSL Project. | |
29 | * | |
30 | * 6. Redistributions of any form whatsoever must retain the following | |
31 | * acknowledgment: | |
32 | * "This product includes software developed by the OpenSSL Project | |
33 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
34 | * | |
35 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
36 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
37 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
38 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
41 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
42 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
43 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
44 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
45 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
46 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
47 | * ==================================================================== | |
48 | */ | |
49 | ||
50 | #define OPENSSL_FIPSAPI | |
51 | ||
52 | #include <openssl/crypto.h> | |
53 | #include "modes_lcl.h" | |
54 | #include <string.h> | |
55 | ||
56 | #ifndef MODES_DEBUG | |
57 | # ifndef NDEBUG | |
58 | # define NDEBUG | |
59 | # endif | |
60 | #endif | |
61 | #include <assert.h> | |
62 | ||
63 | #if defined(BSWAP4) && defined(STRICT_ALIGNMENT) | |
64 | /* redefine, because alignment is ensured */ | |
65 | #undef GETU32 | |
66 | #define GETU32(p) BSWAP4(*(const u32 *)(p)) | |
67 | #undef PUTU32 | |
68 | #define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v) | |
69 | #endif | |
70 | ||
71 | #define PACK(s) ((size_t)(s)<<(sizeof(size_t)*8-16)) | |
72 | #define REDUCE1BIT(V) do { \ | |
73 | if (sizeof(size_t)==8) { \ | |
74 | u64 T = U64(0xe100000000000000) & (0-(V.lo&1)); \ | |
75 | V.lo = (V.hi<<63)|(V.lo>>1); \ | |
76 | V.hi = (V.hi>>1 )^T; \ | |
77 | } \ | |
78 | else { \ | |
79 | u32 T = 0xe1000000U & (0-(u32)(V.lo&1)); \ | |
80 | V.lo = (V.hi<<63)|(V.lo>>1); \ | |
81 | V.hi = (V.hi>>1 )^((u64)T<<32); \ | |
82 | } \ | |
83 | } while(0) | |
84 | ||
85 | /* | |
86 | * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should | |
87 | * never be set to 8. 8 is effectively reserved for testing purposes. | |
88 | * TABLE_BITS>1 are lookup-table-driven implementations referred to as | |
89 | * "Shoup's" in GCM specification. In other words OpenSSL does not cover | |
90 | * whole spectrum of possible table driven implementations. Why? In | |
91 | * non-"Shoup's" case memory access pattern is segmented in such manner, | |
92 | * that it's trivial to see that cache timing information can reveal | |
93 | * fair portion of intermediate hash value. Given that ciphertext is | |
94 | * always available to attacker, it's possible for him to attempt to | |
95 | * deduce secret parameter H and if successful, tamper with messages | |
96 | * [which is nothing but trivial in CTR mode]. In "Shoup's" case it's | |
97 | * not as trivial, but there is no reason to believe that it's resistant | |
98 | * to cache-timing attack. And the thing about "8-bit" implementation is | |
99 | * that it consumes 16 (sixteen) times more memory, 4KB per individual | |
100 | * key + 1KB shared. Well, on pros side it should be twice as fast as | |
101 | * "4-bit" version. And for gcc-generated x86[_64] code, "8-bit" version | |
102 | * was observed to run ~75% faster, closer to 100% for commercial | |
103 | * compilers... Yet "4-bit" procedure is preferred, because it's | |
104 | * believed to provide better security-performance balance and adequate | |
105 | * all-round performance. "All-round" refers to things like: | |
106 | * | |
107 | * - shorter setup time effectively improves overall timing for | |
108 | * handling short messages; | |
109 | * - larger table allocation can become unbearable because of VM | |
110 | * subsystem penalties (for example on Windows large enough free | |
111 | * results in VM working set trimming, meaning that consequent | |
112 | * malloc would immediately incur working set expansion); | |
113 | * - larger table has larger cache footprint, which can affect | |
114 | * performance of other code paths (not necessarily even from same | |
115 | * thread in Hyper-Threading world); | |
116 | * | |
117 | * Value of 1 is not appropriate for performance reasons. | |
118 | */ | |
119 | #if TABLE_BITS==8 | |
120 | ||
121 | static void gcm_init_8bit(u128 Htable[256], u64 H[2]) | |
122 | { | |
123 | int i, j; | |
124 | u128 V; | |
125 | ||
126 | Htable[0].hi = 0; | |
127 | Htable[0].lo = 0; | |
128 | V.hi = H[0]; | |
129 | V.lo = H[1]; | |
130 | ||
131 | for (Htable[128]=V, i=64; i>0; i>>=1) { | |
132 | REDUCE1BIT(V); | |
133 | Htable[i] = V; | |
134 | } | |
135 | ||
136 | for (i=2; i<256; i<<=1) { | |
137 | u128 *Hi = Htable+i, H0 = *Hi; | |
138 | for (j=1; j<i; ++j) { | |
139 | Hi[j].hi = H0.hi^Htable[j].hi; | |
140 | Hi[j].lo = H0.lo^Htable[j].lo; | |
141 | } | |
142 | } | |
143 | } | |
144 | ||
145 | static void gcm_gmult_8bit(u64 Xi[2], const u128 Htable[256]) | |
146 | { | |
147 | u128 Z = { 0, 0}; | |
148 | const u8 *xi = (const u8 *)Xi+15; | |
149 | size_t rem, n = *xi; | |
150 | const union { long one; char little; } is_endian = {1}; | |
151 | static const size_t rem_8bit[256] = { | |
152 | PACK(0x0000), PACK(0x01C2), PACK(0x0384), PACK(0x0246), | |
153 | PACK(0x0708), PACK(0x06CA), PACK(0x048C), PACK(0x054E), | |
154 | PACK(0x0E10), PACK(0x0FD2), PACK(0x0D94), PACK(0x0C56), | |
155 | PACK(0x0918), PACK(0x08DA), PACK(0x0A9C), PACK(0x0B5E), | |
156 | PACK(0x1C20), PACK(0x1DE2), PACK(0x1FA4), PACK(0x1E66), | |
157 | PACK(0x1B28), PACK(0x1AEA), PACK(0x18AC), PACK(0x196E), | |
158 | PACK(0x1230), PACK(0x13F2), PACK(0x11B4), PACK(0x1076), | |
159 | PACK(0x1538), PACK(0x14FA), PACK(0x16BC), PACK(0x177E), | |
160 | PACK(0x3840), PACK(0x3982), PACK(0x3BC4), PACK(0x3A06), | |
161 | PACK(0x3F48), PACK(0x3E8A), PACK(0x3CCC), PACK(0x3D0E), | |
162 | PACK(0x3650), PACK(0x3792), PACK(0x35D4), PACK(0x3416), | |
163 | PACK(0x3158), PACK(0x309A), PACK(0x32DC), PACK(0x331E), | |
164 | PACK(0x2460), PACK(0x25A2), PACK(0x27E4), PACK(0x2626), | |
165 | PACK(0x2368), PACK(0x22AA), PACK(0x20EC), PACK(0x212E), | |
166 | PACK(0x2A70), PACK(0x2BB2), PACK(0x29F4), PACK(0x2836), | |
167 | PACK(0x2D78), PACK(0x2CBA), PACK(0x2EFC), PACK(0x2F3E), | |
168 | PACK(0x7080), PACK(0x7142), PACK(0x7304), PACK(0x72C6), | |
169 | PACK(0x7788), PACK(0x764A), PACK(0x740C), PACK(0x75CE), | |
170 | PACK(0x7E90), PACK(0x7F52), PACK(0x7D14), PACK(0x7CD6), | |
171 | PACK(0x7998), PACK(0x785A), PACK(0x7A1C), PACK(0x7BDE), | |
172 | PACK(0x6CA0), PACK(0x6D62), PACK(0x6F24), PACK(0x6EE6), | |
173 | PACK(0x6BA8), PACK(0x6A6A), PACK(0x682C), PACK(0x69EE), | |
174 | PACK(0x62B0), PACK(0x6372), PACK(0x6134), PACK(0x60F6), | |
175 | PACK(0x65B8), PACK(0x647A), PACK(0x663C), PACK(0x67FE), | |
176 | PACK(0x48C0), PACK(0x4902), PACK(0x4B44), PACK(0x4A86), | |
177 | PACK(0x4FC8), PACK(0x4E0A), PACK(0x4C4C), PACK(0x4D8E), | |
178 | PACK(0x46D0), PACK(0x4712), PACK(0x4554), PACK(0x4496), | |
179 | PACK(0x41D8), PACK(0x401A), PACK(0x425C), PACK(0x439E), | |
180 | PACK(0x54E0), PACK(0x5522), PACK(0x5764), PACK(0x56A6), | |
181 | PACK(0x53E8), PACK(0x522A), PACK(0x506C), PACK(0x51AE), | |
182 | PACK(0x5AF0), PACK(0x5B32), PACK(0x5974), PACK(0x58B6), | |
183 | PACK(0x5DF8), PACK(0x5C3A), PACK(0x5E7C), PACK(0x5FBE), | |
184 | PACK(0xE100), PACK(0xE0C2), PACK(0xE284), PACK(0xE346), | |
185 | PACK(0xE608), PACK(0xE7CA), PACK(0xE58C), PACK(0xE44E), | |
186 | PACK(0xEF10), PACK(0xEED2), PACK(0xEC94), PACK(0xED56), | |
187 | PACK(0xE818), PACK(0xE9DA), PACK(0xEB9C), PACK(0xEA5E), | |
188 | PACK(0xFD20), PACK(0xFCE2), PACK(0xFEA4), PACK(0xFF66), | |
189 | PACK(0xFA28), PACK(0xFBEA), PACK(0xF9AC), PACK(0xF86E), | |
190 | PACK(0xF330), PACK(0xF2F2), PACK(0xF0B4), PACK(0xF176), | |
191 | PACK(0xF438), PACK(0xF5FA), PACK(0xF7BC), PACK(0xF67E), | |
192 | PACK(0xD940), PACK(0xD882), PACK(0xDAC4), PACK(0xDB06), | |
193 | PACK(0xDE48), PACK(0xDF8A), PACK(0xDDCC), PACK(0xDC0E), | |
194 | PACK(0xD750), PACK(0xD692), PACK(0xD4D4), PACK(0xD516), | |
195 | PACK(0xD058), PACK(0xD19A), PACK(0xD3DC), PACK(0xD21E), | |
196 | PACK(0xC560), PACK(0xC4A2), PACK(0xC6E4), PACK(0xC726), | |
197 | PACK(0xC268), PACK(0xC3AA), PACK(0xC1EC), PACK(0xC02E), | |
198 | PACK(0xCB70), PACK(0xCAB2), PACK(0xC8F4), PACK(0xC936), | |
199 | PACK(0xCC78), PACK(0xCDBA), PACK(0xCFFC), PACK(0xCE3E), | |
200 | PACK(0x9180), PACK(0x9042), PACK(0x9204), PACK(0x93C6), | |
201 | PACK(0x9688), PACK(0x974A), PACK(0x950C), PACK(0x94CE), | |
202 | PACK(0x9F90), PACK(0x9E52), PACK(0x9C14), PACK(0x9DD6), | |
203 | PACK(0x9898), PACK(0x995A), PACK(0x9B1C), PACK(0x9ADE), | |
204 | PACK(0x8DA0), PACK(0x8C62), PACK(0x8E24), PACK(0x8FE6), | |
205 | PACK(0x8AA8), PACK(0x8B6A), PACK(0x892C), PACK(0x88EE), | |
206 | PACK(0x83B0), PACK(0x8272), PACK(0x8034), PACK(0x81F6), | |
207 | PACK(0x84B8), PACK(0x857A), PACK(0x873C), PACK(0x86FE), | |
208 | PACK(0xA9C0), PACK(0xA802), PACK(0xAA44), PACK(0xAB86), | |
209 | PACK(0xAEC8), PACK(0xAF0A), PACK(0xAD4C), PACK(0xAC8E), | |
210 | PACK(0xA7D0), PACK(0xA612), PACK(0xA454), PACK(0xA596), | |
211 | PACK(0xA0D8), PACK(0xA11A), PACK(0xA35C), PACK(0xA29E), | |
212 | PACK(0xB5E0), PACK(0xB422), PACK(0xB664), PACK(0xB7A6), | |
213 | PACK(0xB2E8), PACK(0xB32A), PACK(0xB16C), PACK(0xB0AE), | |
214 | PACK(0xBBF0), PACK(0xBA32), PACK(0xB874), PACK(0xB9B6), | |
215 | PACK(0xBCF8), PACK(0xBD3A), PACK(0xBF7C), PACK(0xBEBE) }; | |
216 | ||
217 | while (1) { | |
218 | Z.hi ^= Htable[n].hi; | |
219 | Z.lo ^= Htable[n].lo; | |
220 | ||
221 | if ((u8 *)Xi==xi) break; | |
222 | ||
223 | n = *(--xi); | |
224 | ||
225 | rem = (size_t)Z.lo&0xff; | |
226 | Z.lo = (Z.hi<<56)|(Z.lo>>8); | |
227 | Z.hi = (Z.hi>>8); | |
228 | if (sizeof(size_t)==8) | |
229 | Z.hi ^= rem_8bit[rem]; | |
230 | else | |
231 | Z.hi ^= (u64)rem_8bit[rem]<<32; | |
232 | } | |
233 | ||
234 | if (is_endian.little) { | |
235 | #ifdef BSWAP8 | |
236 | Xi[0] = BSWAP8(Z.hi); | |
237 | Xi[1] = BSWAP8(Z.lo); | |
238 | #else | |
239 | u8 *p = (u8 *)Xi; | |
240 | u32 v; | |
241 | v = (u32)(Z.hi>>32); PUTU32(p,v); | |
242 | v = (u32)(Z.hi); PUTU32(p+4,v); | |
243 | v = (u32)(Z.lo>>32); PUTU32(p+8,v); | |
244 | v = (u32)(Z.lo); PUTU32(p+12,v); | |
245 | #endif | |
246 | } | |
247 | else { | |
248 | Xi[0] = Z.hi; | |
249 | Xi[1] = Z.lo; | |
250 | } | |
251 | } | |
252 | #define GCM_MUL(ctx,Xi) gcm_gmult_8bit(ctx->Xi.u,ctx->Htable) | |
253 | ||
254 | #elif TABLE_BITS==4 | |
255 | ||
256 | static void gcm_init_4bit(u128 Htable[16], u64 H[2]) | |
257 | { | |
258 | u128 V; | |
259 | #if defined(OPENSSL_SMALL_FOOTPRINT) | |
260 | int i; | |
261 | #endif | |
262 | ||
263 | Htable[0].hi = 0; | |
264 | Htable[0].lo = 0; | |
265 | V.hi = H[0]; | |
266 | V.lo = H[1]; | |
267 | ||
268 | #if defined(OPENSSL_SMALL_FOOTPRINT) | |
269 | for (Htable[8]=V, i=4; i>0; i>>=1) { | |
270 | REDUCE1BIT(V); | |
271 | Htable[i] = V; | |
272 | } | |
273 | ||
274 | for (i=2; i<16; i<<=1) { | |
275 | u128 *Hi = Htable+i; | |
276 | int j; | |
277 | for (V=*Hi, j=1; j<i; ++j) { | |
278 | Hi[j].hi = V.hi^Htable[j].hi; | |
279 | Hi[j].lo = V.lo^Htable[j].lo; | |
280 | } | |
281 | } | |
282 | #else | |
283 | Htable[8] = V; | |
284 | REDUCE1BIT(V); | |
285 | Htable[4] = V; | |
286 | REDUCE1BIT(V); | |
287 | Htable[2] = V; | |
288 | REDUCE1BIT(V); | |
289 | Htable[1] = V; | |
290 | Htable[3].hi = V.hi^Htable[2].hi, Htable[3].lo = V.lo^Htable[2].lo; | |
291 | V=Htable[4]; | |
292 | Htable[5].hi = V.hi^Htable[1].hi, Htable[5].lo = V.lo^Htable[1].lo; | |
293 | Htable[6].hi = V.hi^Htable[2].hi, Htable[6].lo = V.lo^Htable[2].lo; | |
294 | Htable[7].hi = V.hi^Htable[3].hi, Htable[7].lo = V.lo^Htable[3].lo; | |
295 | V=Htable[8]; | |
296 | Htable[9].hi = V.hi^Htable[1].hi, Htable[9].lo = V.lo^Htable[1].lo; | |
297 | Htable[10].hi = V.hi^Htable[2].hi, Htable[10].lo = V.lo^Htable[2].lo; | |
298 | Htable[11].hi = V.hi^Htable[3].hi, Htable[11].lo = V.lo^Htable[3].lo; | |
299 | Htable[12].hi = V.hi^Htable[4].hi, Htable[12].lo = V.lo^Htable[4].lo; | |
300 | Htable[13].hi = V.hi^Htable[5].hi, Htable[13].lo = V.lo^Htable[5].lo; | |
301 | Htable[14].hi = V.hi^Htable[6].hi, Htable[14].lo = V.lo^Htable[6].lo; | |
302 | Htable[15].hi = V.hi^Htable[7].hi, Htable[15].lo = V.lo^Htable[7].lo; | |
303 | #endif | |
304 | #if defined(GHASH_ASM) && (defined(__arm__) || defined(__arm)) | |
305 | /* | |
306 | * ARM assembler expects specific dword order in Htable. | |
307 | */ | |
308 | { | |
309 | int j; | |
310 | const union { long one; char little; } is_endian = {1}; | |
311 | ||
312 | if (is_endian.little) | |
313 | for (j=0;j<16;++j) { | |
314 | V = Htable[j]; | |
315 | Htable[j].hi = V.lo; | |
316 | Htable[j].lo = V.hi; | |
317 | } | |
318 | else | |
319 | for (j=0;j<16;++j) { | |
320 | V = Htable[j]; | |
321 | Htable[j].hi = V.lo<<32|V.lo>>32; | |
322 | Htable[j].lo = V.hi<<32|V.hi>>32; | |
323 | } | |
324 | } | |
325 | #endif | |
326 | } | |
327 | ||
328 | #ifndef GHASH_ASM | |
329 | static const size_t rem_4bit[16] = { | |
330 | PACK(0x0000), PACK(0x1C20), PACK(0x3840), PACK(0x2460), | |
331 | PACK(0x7080), PACK(0x6CA0), PACK(0x48C0), PACK(0x54E0), | |
332 | PACK(0xE100), PACK(0xFD20), PACK(0xD940), PACK(0xC560), | |
333 | PACK(0x9180), PACK(0x8DA0), PACK(0xA9C0), PACK(0xB5E0) }; | |
334 | ||
335 | static void gcm_gmult_4bit(u64 Xi[2], const u128 Htable[16]) | |
336 | { | |
337 | u128 Z; | |
338 | int cnt = 15; | |
339 | size_t rem, nlo, nhi; | |
340 | const union { long one; char little; } is_endian = {1}; | |
341 | ||
342 | nlo = ((const u8 *)Xi)[15]; | |
343 | nhi = nlo>>4; | |
344 | nlo &= 0xf; | |
345 | ||
346 | Z.hi = Htable[nlo].hi; | |
347 | Z.lo = Htable[nlo].lo; | |
348 | ||
349 | while (1) { | |
350 | rem = (size_t)Z.lo&0xf; | |
351 | Z.lo = (Z.hi<<60)|(Z.lo>>4); | |
352 | Z.hi = (Z.hi>>4); | |
353 | if (sizeof(size_t)==8) | |
354 | Z.hi ^= rem_4bit[rem]; | |
355 | else | |
356 | Z.hi ^= (u64)rem_4bit[rem]<<32; | |
357 | ||
358 | Z.hi ^= Htable[nhi].hi; | |
359 | Z.lo ^= Htable[nhi].lo; | |
360 | ||
361 | if (--cnt<0) break; | |
362 | ||
363 | nlo = ((const u8 *)Xi)[cnt]; | |
364 | nhi = nlo>>4; | |
365 | nlo &= 0xf; | |
366 | ||
367 | rem = (size_t)Z.lo&0xf; | |
368 | Z.lo = (Z.hi<<60)|(Z.lo>>4); | |
369 | Z.hi = (Z.hi>>4); | |
370 | if (sizeof(size_t)==8) | |
371 | Z.hi ^= rem_4bit[rem]; | |
372 | else | |
373 | Z.hi ^= (u64)rem_4bit[rem]<<32; | |
374 | ||
375 | Z.hi ^= Htable[nlo].hi; | |
376 | Z.lo ^= Htable[nlo].lo; | |
377 | } | |
378 | ||
379 | if (is_endian.little) { | |
380 | #ifdef BSWAP8 | |
381 | Xi[0] = BSWAP8(Z.hi); | |
382 | Xi[1] = BSWAP8(Z.lo); | |
383 | #else | |
384 | u8 *p = (u8 *)Xi; | |
385 | u32 v; | |
386 | v = (u32)(Z.hi>>32); PUTU32(p,v); | |
387 | v = (u32)(Z.hi); PUTU32(p+4,v); | |
388 | v = (u32)(Z.lo>>32); PUTU32(p+8,v); | |
389 | v = (u32)(Z.lo); PUTU32(p+12,v); | |
390 | #endif | |
391 | } | |
392 | else { | |
393 | Xi[0] = Z.hi; | |
394 | Xi[1] = Z.lo; | |
395 | } | |
396 | } | |
397 | ||
398 | #if !defined(OPENSSL_SMALL_FOOTPRINT) | |
399 | /* | |
400 | * Streamed gcm_mult_4bit, see CRYPTO_gcm128_[en|de]crypt for | |
401 | * details... Compiler-generated code doesn't seem to give any | |
402 | * performance improvement, at least not on x86[_64]. It's here | |
403 | * mostly as reference and a placeholder for possible future | |
404 | * non-trivial optimization[s]... | |
405 | */ | |
406 | static void gcm_ghash_4bit(u64 Xi[2],const u128 Htable[16], | |
407 | const u8 *inp,size_t len) | |
408 | { | |
409 | u128 Z; | |
410 | int cnt; | |
411 | size_t rem, nlo, nhi; | |
412 | const union { long one; char little; } is_endian = {1}; | |
413 | ||
414 | #if 1 | |
415 | do { | |
416 | cnt = 15; | |
417 | nlo = ((const u8 *)Xi)[15]; | |
418 | nlo ^= inp[15]; | |
419 | nhi = nlo>>4; | |
420 | nlo &= 0xf; | |
421 | ||
422 | Z.hi = Htable[nlo].hi; | |
423 | Z.lo = Htable[nlo].lo; | |
424 | ||
425 | while (1) { | |
426 | rem = (size_t)Z.lo&0xf; | |
427 | Z.lo = (Z.hi<<60)|(Z.lo>>4); | |
428 | Z.hi = (Z.hi>>4); | |
429 | if (sizeof(size_t)==8) | |
430 | Z.hi ^= rem_4bit[rem]; | |
431 | else | |
432 | Z.hi ^= (u64)rem_4bit[rem]<<32; | |
433 | ||
434 | Z.hi ^= Htable[nhi].hi; | |
435 | Z.lo ^= Htable[nhi].lo; | |
436 | ||
437 | if (--cnt<0) break; | |
438 | ||
439 | nlo = ((const u8 *)Xi)[cnt]; | |
440 | nlo ^= inp[cnt]; | |
441 | nhi = nlo>>4; | |
442 | nlo &= 0xf; | |
443 | ||
444 | rem = (size_t)Z.lo&0xf; | |
445 | Z.lo = (Z.hi<<60)|(Z.lo>>4); | |
446 | Z.hi = (Z.hi>>4); | |
447 | if (sizeof(size_t)==8) | |
448 | Z.hi ^= rem_4bit[rem]; | |
449 | else | |
450 | Z.hi ^= (u64)rem_4bit[rem]<<32; | |
451 | ||
452 | Z.hi ^= Htable[nlo].hi; | |
453 | Z.lo ^= Htable[nlo].lo; | |
454 | } | |
455 | #else | |
456 | /* | |
457 | * Extra 256+16 bytes per-key plus 512 bytes shared tables | |
458 | * [should] give ~50% improvement... One could have PACK()-ed | |
459 | * the rem_8bit even here, but the priority is to minimize | |
460 | * cache footprint... | |
461 | */ | |
462 | u128 Hshr4[16]; /* Htable shifted right by 4 bits */ | |
463 | u8 Hshl4[16]; /* Htable shifted left by 4 bits */ | |
464 | static const unsigned short rem_8bit[256] = { | |
465 | 0x0000, 0x01C2, 0x0384, 0x0246, 0x0708, 0x06CA, 0x048C, 0x054E, | |
466 | 0x0E10, 0x0FD2, 0x0D94, 0x0C56, 0x0918, 0x08DA, 0x0A9C, 0x0B5E, | |
467 | 0x1C20, 0x1DE2, 0x1FA4, 0x1E66, 0x1B28, 0x1AEA, 0x18AC, 0x196E, | |
468 | 0x1230, 0x13F2, 0x11B4, 0x1076, 0x1538, 0x14FA, 0x16BC, 0x177E, | |
469 | 0x3840, 0x3982, 0x3BC4, 0x3A06, 0x3F48, 0x3E8A, 0x3CCC, 0x3D0E, | |
470 | 0x3650, 0x3792, 0x35D4, 0x3416, 0x3158, 0x309A, 0x32DC, 0x331E, | |
471 | 0x2460, 0x25A2, 0x27E4, 0x2626, 0x2368, 0x22AA, 0x20EC, 0x212E, | |
472 | 0x2A70, 0x2BB2, 0x29F4, 0x2836, 0x2D78, 0x2CBA, 0x2EFC, 0x2F3E, | |
473 | 0x7080, 0x7142, 0x7304, 0x72C6, 0x7788, 0x764A, 0x740C, 0x75CE, | |
474 | 0x7E90, 0x7F52, 0x7D14, 0x7CD6, 0x7998, 0x785A, 0x7A1C, 0x7BDE, | |
475 | 0x6CA0, 0x6D62, 0x6F24, 0x6EE6, 0x6BA8, 0x6A6A, 0x682C, 0x69EE, | |
476 | 0x62B0, 0x6372, 0x6134, 0x60F6, 0x65B8, 0x647A, 0x663C, 0x67FE, | |
477 | 0x48C0, 0x4902, 0x4B44, 0x4A86, 0x4FC8, 0x4E0A, 0x4C4C, 0x4D8E, | |
478 | 0x46D0, 0x4712, 0x4554, 0x4496, 0x41D8, 0x401A, 0x425C, 0x439E, | |
479 | 0x54E0, 0x5522, 0x5764, 0x56A6, 0x53E8, 0x522A, 0x506C, 0x51AE, | |
480 | 0x5AF0, 0x5B32, 0x5974, 0x58B6, 0x5DF8, 0x5C3A, 0x5E7C, 0x5FBE, | |
481 | 0xE100, 0xE0C2, 0xE284, 0xE346, 0xE608, 0xE7CA, 0xE58C, 0xE44E, | |
482 | 0xEF10, 0xEED2, 0xEC94, 0xED56, 0xE818, 0xE9DA, 0xEB9C, 0xEA5E, | |
483 | 0xFD20, 0xFCE2, 0xFEA4, 0xFF66, 0xFA28, 0xFBEA, 0xF9AC, 0xF86E, | |
484 | 0xF330, 0xF2F2, 0xF0B4, 0xF176, 0xF438, 0xF5FA, 0xF7BC, 0xF67E, | |
485 | 0xD940, 0xD882, 0xDAC4, 0xDB06, 0xDE48, 0xDF8A, 0xDDCC, 0xDC0E, | |
486 | 0xD750, 0xD692, 0xD4D4, 0xD516, 0xD058, 0xD19A, 0xD3DC, 0xD21E, | |
487 | 0xC560, 0xC4A2, 0xC6E4, 0xC726, 0xC268, 0xC3AA, 0xC1EC, 0xC02E, | |
488 | 0xCB70, 0xCAB2, 0xC8F4, 0xC936, 0xCC78, 0xCDBA, 0xCFFC, 0xCE3E, | |
489 | 0x9180, 0x9042, 0x9204, 0x93C6, 0x9688, 0x974A, 0x950C, 0x94CE, | |
490 | 0x9F90, 0x9E52, 0x9C14, 0x9DD6, 0x9898, 0x995A, 0x9B1C, 0x9ADE, | |
491 | 0x8DA0, 0x8C62, 0x8E24, 0x8FE6, 0x8AA8, 0x8B6A, 0x892C, 0x88EE, | |
492 | 0x83B0, 0x8272, 0x8034, 0x81F6, 0x84B8, 0x857A, 0x873C, 0x86FE, | |
493 | 0xA9C0, 0xA802, 0xAA44, 0xAB86, 0xAEC8, 0xAF0A, 0xAD4C, 0xAC8E, | |
494 | 0xA7D0, 0xA612, 0xA454, 0xA596, 0xA0D8, 0xA11A, 0xA35C, 0xA29E, | |
495 | 0xB5E0, 0xB422, 0xB664, 0xB7A6, 0xB2E8, 0xB32A, 0xB16C, 0xB0AE, | |
496 | 0xBBF0, 0xBA32, 0xB874, 0xB9B6, 0xBCF8, 0xBD3A, 0xBF7C, 0xBEBE }; | |
497 | /* | |
498 | * This pre-processing phase slows down procedure by approximately | |
499 | * same time as it makes each loop spin faster. In other words | |
500 | * single block performance is approximately same as straightforward | |
501 | * "4-bit" implementation, and then it goes only faster... | |
502 | */ | |
503 | for (cnt=0; cnt<16; ++cnt) { | |
504 | Z.hi = Htable[cnt].hi; | |
505 | Z.lo = Htable[cnt].lo; | |
506 | Hshr4[cnt].lo = (Z.hi<<60)|(Z.lo>>4); | |
507 | Hshr4[cnt].hi = (Z.hi>>4); | |
508 | Hshl4[cnt] = (u8)(Z.lo<<4); | |
509 | } | |
510 | ||
511 | do { | |
512 | for (Z.lo=0, Z.hi=0, cnt=15; cnt; --cnt) { | |
513 | nlo = ((const u8 *)Xi)[cnt]; | |
514 | nlo ^= inp[cnt]; | |
515 | nhi = nlo>>4; | |
516 | nlo &= 0xf; | |
517 | ||
518 | Z.hi ^= Htable[nlo].hi; | |
519 | Z.lo ^= Htable[nlo].lo; | |
520 | ||
521 | rem = (size_t)Z.lo&0xff; | |
522 | ||
523 | Z.lo = (Z.hi<<56)|(Z.lo>>8); | |
524 | Z.hi = (Z.hi>>8); | |
525 | ||
526 | Z.hi ^= Hshr4[nhi].hi; | |
527 | Z.lo ^= Hshr4[nhi].lo; | |
528 | Z.hi ^= (u64)rem_8bit[rem^Hshl4[nhi]]<<48; | |
529 | } | |
530 | ||
531 | nlo = ((const u8 *)Xi)[0]; | |
532 | nlo ^= inp[0]; | |
533 | nhi = nlo>>4; | |
534 | nlo &= 0xf; | |
535 | ||
536 | Z.hi ^= Htable[nlo].hi; | |
537 | Z.lo ^= Htable[nlo].lo; | |
538 | ||
539 | rem = (size_t)Z.lo&0xf; | |
540 | ||
541 | Z.lo = (Z.hi<<60)|(Z.lo>>4); | |
542 | Z.hi = (Z.hi>>4); | |
543 | ||
544 | Z.hi ^= Htable[nhi].hi; | |
545 | Z.lo ^= Htable[nhi].lo; | |
546 | Z.hi ^= ((u64)rem_8bit[rem<<4])<<48; | |
547 | #endif | |
548 | ||
549 | if (is_endian.little) { | |
550 | #ifdef BSWAP8 | |
551 | Xi[0] = BSWAP8(Z.hi); | |
552 | Xi[1] = BSWAP8(Z.lo); | |
553 | #else | |
554 | u8 *p = (u8 *)Xi; | |
555 | u32 v; | |
556 | v = (u32)(Z.hi>>32); PUTU32(p,v); | |
557 | v = (u32)(Z.hi); PUTU32(p+4,v); | |
558 | v = (u32)(Z.lo>>32); PUTU32(p+8,v); | |
559 | v = (u32)(Z.lo); PUTU32(p+12,v); | |
560 | #endif | |
561 | } | |
562 | else { | |
563 | Xi[0] = Z.hi; | |
564 | Xi[1] = Z.lo; | |
565 | } | |
566 | } while (inp+=16, len-=16); | |
567 | } | |
568 | #endif | |
569 | #else | |
570 | void gcm_gmult_4bit(u64 Xi[2],const u128 Htable[16]); | |
571 | void gcm_ghash_4bit(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
572 | #endif | |
573 | ||
574 | #define GCM_MUL(ctx,Xi) gcm_gmult_4bit(ctx->Xi.u,ctx->Htable) | |
575 | #if defined(GHASH_ASM) || !defined(OPENSSL_SMALL_FOOTPRINT) | |
576 | #define GHASH(ctx,in,len) gcm_ghash_4bit((ctx)->Xi.u,(ctx)->Htable,in,len) | |
577 | /* GHASH_CHUNK is "stride parameter" missioned to mitigate cache | |
578 | * trashing effect. In other words idea is to hash data while it's | |
579 | * still in L1 cache after encryption pass... */ | |
580 | #define GHASH_CHUNK (3*1024) | |
581 | #endif | |
582 | ||
583 | #else /* TABLE_BITS */ | |
584 | ||
585 | static void gcm_gmult_1bit(u64 Xi[2],const u64 H[2]) | |
586 | { | |
587 | u128 V,Z = { 0,0 }; | |
588 | long X; | |
589 | int i,j; | |
590 | const long *xi = (const long *)Xi; | |
591 | const union { long one; char little; } is_endian = {1}; | |
592 | ||
593 | V.hi = H[0]; /* H is in host byte order, no byte swapping */ | |
594 | V.lo = H[1]; | |
595 | ||
596 | for (j=0; j<16/sizeof(long); ++j) { | |
597 | if (is_endian.little) { | |
598 | if (sizeof(long)==8) { | |
599 | #ifdef BSWAP8 | |
600 | X = (long)(BSWAP8(xi[j])); | |
601 | #else | |
602 | const u8 *p = (const u8 *)(xi+j); | |
603 | X = (long)((u64)GETU32(p)<<32|GETU32(p+4)); | |
604 | #endif | |
605 | } | |
606 | else { | |
607 | const u8 *p = (const u8 *)(xi+j); | |
608 | X = (long)GETU32(p); | |
609 | } | |
610 | } | |
611 | else | |
612 | X = xi[j]; | |
613 | ||
614 | for (i=0; i<8*sizeof(long); ++i, X<<=1) { | |
615 | u64 M = (u64)(X>>(8*sizeof(long)-1)); | |
616 | Z.hi ^= V.hi&M; | |
617 | Z.lo ^= V.lo&M; | |
618 | ||
619 | REDUCE1BIT(V); | |
620 | } | |
621 | } | |
622 | ||
623 | if (is_endian.little) { | |
624 | #ifdef BSWAP8 | |
625 | Xi[0] = BSWAP8(Z.hi); | |
626 | Xi[1] = BSWAP8(Z.lo); | |
627 | #else | |
628 | u8 *p = (u8 *)Xi; | |
629 | u32 v; | |
630 | v = (u32)(Z.hi>>32); PUTU32(p,v); | |
631 | v = (u32)(Z.hi); PUTU32(p+4,v); | |
632 | v = (u32)(Z.lo>>32); PUTU32(p+8,v); | |
633 | v = (u32)(Z.lo); PUTU32(p+12,v); | |
634 | #endif | |
635 | } | |
636 | else { | |
637 | Xi[0] = Z.hi; | |
638 | Xi[1] = Z.lo; | |
639 | } | |
640 | } | |
641 | #define GCM_MUL(ctx,Xi) gcm_gmult_1bit(ctx->Xi.u,ctx->H.u) | |
642 | ||
643 | #endif | |
644 | ||
77fb5a30 | 645 | #if TABLE_BITS==4 && (defined(GHASH_ASM) || defined(OPENSSL_CPUID_OBJ)) |
61cdb9f3 DSH |
646 | # if !defined(I386_ONLY) && \ |
647 | (defined(__i386) || defined(__i386__) || \ | |
648 | defined(__x86_64) || defined(__x86_64__) || \ | |
649 | defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64)) | |
650 | # define GHASH_ASM_X86_OR_64 | |
651 | # define GCM_FUNCREF_4BIT | |
652 | extern unsigned int OPENSSL_ia32cap_P[2]; | |
653 | ||
654 | void gcm_init_clmul(u128 Htable[16],const u64 Xi[2]); | |
655 | void gcm_gmult_clmul(u64 Xi[2],const u128 Htable[16]); | |
656 | void gcm_ghash_clmul(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
657 | ||
0ba304dd AP |
658 | #if defined(__i386) || defined(__i386__) || defined(_M_IX86) |
659 | # define gcm_init_avx gcm_init_clmul | |
660 | # define gcm_gmult_avx gcm_gmult_clmul | |
661 | # define gcm_ghash_avx gcm_ghash_clmul | |
662 | #else | |
663 | void gcm_init_avx(u128 Htable[16],const u64 Xi[2]); | |
664 | void gcm_gmult_avx(u64 Xi[2],const u128 Htable[16]); | |
665 | void gcm_ghash_avx(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
666 | #endif | |
667 | ||
61cdb9f3 DSH |
668 | # if defined(__i386) || defined(__i386__) || defined(_M_IX86) |
669 | # define GHASH_ASM_X86 | |
670 | void gcm_gmult_4bit_mmx(u64 Xi[2],const u128 Htable[16]); | |
671 | void gcm_ghash_4bit_mmx(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
672 | ||
673 | void gcm_gmult_4bit_x86(u64 Xi[2],const u128 Htable[16]); | |
674 | void gcm_ghash_4bit_x86(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
675 | # endif | |
77fb5a30 | 676 | # elif defined(__arm__) || defined(__arm) || defined(__aarch64__) |
61cdb9f3 | 677 | # include "arm_arch.h" |
f4868c99 | 678 | # if __ARM_MAX_ARCH__>=7 |
61cdb9f3 DSH |
679 | # define GHASH_ASM_ARM |
680 | # define GCM_FUNCREF_4BIT | |
77fb5a30 AP |
681 | # define PMULL_CAPABLE (OPENSSL_armcap_P & ARMV8_PMULL) |
682 | # if defined(__arm__) || defined(__arm) | |
683 | # define NEON_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON) | |
684 | # endif | |
0fb3d5b4 | 685 | void gcm_init_neon(u128 Htable[16],const u64 Xi[2]); |
61cdb9f3 DSH |
686 | void gcm_gmult_neon(u64 Xi[2],const u128 Htable[16]); |
687 | void gcm_ghash_neon(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
77fb5a30 AP |
688 | void gcm_init_v8(u128 Htable[16],const u64 Xi[2]); |
689 | void gcm_gmult_v8(u64 Xi[2],const u128 Htable[16]); | |
690 | void gcm_ghash_v8(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
61cdb9f3 | 691 | # endif |
0ba304dd AP |
692 | # elif defined(__sparc__) || defined(__sparc) |
693 | # include "sparc_arch.h" | |
694 | # define GHASH_ASM_SPARC | |
695 | # define GCM_FUNCREF_4BIT | |
696 | extern unsigned int OPENSSL_sparcv9cap_P[]; | |
697 | void gcm_init_vis3(u128 Htable[16],const u64 Xi[2]); | |
698 | void gcm_gmult_vis3(u64 Xi[2],const u128 Htable[16]); | |
699 | void gcm_ghash_vis3(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
c991d8ae AP |
700 | # elif defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC)) |
701 | # include "ppc_arch.h" | |
702 | # define GHASH_ASM_PPC | |
703 | # define GCM_FUNCREF_4BIT | |
704 | void gcm_init_p8(u128 Htable[16],const u64 Xi[2]); | |
705 | void gcm_gmult_p8(u64 Xi[2],const u128 Htable[16]); | |
706 | void gcm_ghash_p8(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
61cdb9f3 DSH |
707 | # endif |
708 | #endif | |
709 | ||
710 | #ifdef GCM_FUNCREF_4BIT | |
711 | # undef GCM_MUL | |
712 | # define GCM_MUL(ctx,Xi) (*gcm_gmult_p)(ctx->Xi.u,ctx->Htable) | |
713 | # ifdef GHASH | |
714 | # undef GHASH | |
715 | # define GHASH(ctx,in,len) (*gcm_ghash_p)(ctx->Xi.u,ctx->Htable,in,len) | |
716 | # endif | |
717 | #endif | |
718 | ||
719 | void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx,void *key,block128_f block) | |
720 | { | |
721 | const union { long one; char little; } is_endian = {1}; | |
722 | ||
723 | memset(ctx,0,sizeof(*ctx)); | |
724 | ctx->block = block; | |
725 | ctx->key = key; | |
726 | ||
727 | (*block)(ctx->H.c,ctx->H.c,key); | |
728 | ||
729 | if (is_endian.little) { | |
730 | /* H is stored in host byte order */ | |
731 | #ifdef BSWAP8 | |
732 | ctx->H.u[0] = BSWAP8(ctx->H.u[0]); | |
733 | ctx->H.u[1] = BSWAP8(ctx->H.u[1]); | |
734 | #else | |
735 | u8 *p = ctx->H.c; | |
736 | u64 hi,lo; | |
737 | hi = (u64)GETU32(p) <<32|GETU32(p+4); | |
738 | lo = (u64)GETU32(p+8)<<32|GETU32(p+12); | |
739 | ctx->H.u[0] = hi; | |
740 | ctx->H.u[1] = lo; | |
741 | #endif | |
742 | } | |
743 | ||
744 | #if TABLE_BITS==8 | |
745 | gcm_init_8bit(ctx->Htable,ctx->H.u); | |
746 | #elif TABLE_BITS==4 | |
747 | # if defined(GHASH_ASM_X86_OR_64) | |
748 | # if !defined(GHASH_ASM_X86) || defined(OPENSSL_IA32_SSE2) | |
749 | if (OPENSSL_ia32cap_P[0]&(1<<24) && /* check FXSR bit */ | |
750 | OPENSSL_ia32cap_P[1]&(1<<1) ) { /* check PCLMULQDQ bit */ | |
0ba304dd AP |
751 | if (((OPENSSL_ia32cap_P[1]>>22)&0x41)==0x41) { /* AVX+MOVBE */ |
752 | gcm_init_avx(ctx->Htable,ctx->H.u); | |
753 | ctx->gmult = gcm_gmult_avx; | |
754 | ctx->ghash = gcm_ghash_avx; | |
755 | } else { | |
756 | gcm_init_clmul(ctx->Htable,ctx->H.u); | |
757 | ctx->gmult = gcm_gmult_clmul; | |
758 | ctx->ghash = gcm_ghash_clmul; | |
759 | } | |
61cdb9f3 DSH |
760 | return; |
761 | } | |
762 | # endif | |
763 | gcm_init_4bit(ctx->Htable,ctx->H.u); | |
764 | # if defined(GHASH_ASM_X86) /* x86 only */ | |
68d2cf51 | 765 | # if defined(OPENSSL_IA32_SSE2) |
bd479e25 AP |
766 | if (OPENSSL_ia32cap_P[0]&(1<<25)) { /* check SSE bit */ |
767 | # else | |
61cdb9f3 | 768 | if (OPENSSL_ia32cap_P[0]&(1<<23)) { /* check MMX bit */ |
bd479e25 | 769 | # endif |
61cdb9f3 DSH |
770 | ctx->gmult = gcm_gmult_4bit_mmx; |
771 | ctx->ghash = gcm_ghash_4bit_mmx; | |
772 | } else { | |
773 | ctx->gmult = gcm_gmult_4bit_x86; | |
774 | ctx->ghash = gcm_ghash_4bit_x86; | |
775 | } | |
776 | # else | |
777 | ctx->gmult = gcm_gmult_4bit; | |
778 | ctx->ghash = gcm_ghash_4bit; | |
779 | # endif | |
780 | # elif defined(GHASH_ASM_ARM) | |
77fb5a30 AP |
781 | # ifdef PMULL_CAPABLE |
782 | if (PMULL_CAPABLE) { | |
783 | gcm_init_v8(ctx->Htable,ctx->H.u); | |
784 | ctx->gmult = gcm_gmult_v8; | |
785 | ctx->ghash = gcm_ghash_v8; | |
786 | } else | |
787 | # endif | |
788 | # ifdef NEON_CAPABLE | |
789 | if (NEON_CAPABLE) { | |
0fb3d5b4 | 790 | gcm_init_neon(ctx->Htable,ctx->H.u); |
61cdb9f3 DSH |
791 | ctx->gmult = gcm_gmult_neon; |
792 | ctx->ghash = gcm_ghash_neon; | |
77fb5a30 AP |
793 | } else |
794 | # endif | |
795 | { | |
61cdb9f3 DSH |
796 | gcm_init_4bit(ctx->Htable,ctx->H.u); |
797 | ctx->gmult = gcm_gmult_4bit; | |
798 | ctx->ghash = gcm_ghash_4bit; | |
799 | } | |
0ba304dd AP |
800 | # elif defined(GHASH_ASM_SPARC) |
801 | if (OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3) { | |
802 | gcm_init_vis3(ctx->Htable,ctx->H.u); | |
803 | ctx->gmult = gcm_gmult_vis3; | |
804 | ctx->ghash = gcm_ghash_vis3; | |
805 | } else { | |
806 | gcm_init_4bit(ctx->Htable,ctx->H.u); | |
807 | ctx->gmult = gcm_gmult_4bit; | |
808 | ctx->ghash = gcm_ghash_4bit; | |
809 | } | |
c991d8ae AP |
810 | # elif defined(GHASH_ASM_PPC) |
811 | if (OPENSSL_ppccap_P & PPC_CRYPTO207) { | |
812 | gcm_init_p8(ctx->Htable,ctx->H.u); | |
813 | ctx->gmult = gcm_gmult_p8; | |
814 | ctx->ghash = gcm_ghash_p8; | |
815 | } else { | |
816 | gcm_init_4bit(ctx->Htable,ctx->H.u); | |
817 | ctx->gmult = gcm_gmult_4bit; | |
818 | ctx->ghash = gcm_ghash_4bit; | |
819 | } | |
61cdb9f3 DSH |
820 | # else |
821 | gcm_init_4bit(ctx->Htable,ctx->H.u); | |
822 | # endif | |
823 | #endif | |
824 | } | |
825 | ||
826 | void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx,const unsigned char *iv,size_t len) | |
827 | { | |
828 | const union { long one; char little; } is_endian = {1}; | |
829 | unsigned int ctr; | |
830 | #ifdef GCM_FUNCREF_4BIT | |
831 | void (*gcm_gmult_p)(u64 Xi[2],const u128 Htable[16]) = ctx->gmult; | |
832 | #endif | |
833 | ||
834 | ctx->Yi.u[0] = 0; | |
835 | ctx->Yi.u[1] = 0; | |
836 | ctx->Xi.u[0] = 0; | |
837 | ctx->Xi.u[1] = 0; | |
838 | ctx->len.u[0] = 0; /* AAD length */ | |
839 | ctx->len.u[1] = 0; /* message length */ | |
840 | ctx->ares = 0; | |
841 | ctx->mres = 0; | |
842 | ||
843 | if (len==12) { | |
844 | memcpy(ctx->Yi.c,iv,12); | |
845 | ctx->Yi.c[15]=1; | |
846 | ctr=1; | |
847 | } | |
848 | else { | |
849 | size_t i; | |
850 | u64 len0 = len; | |
851 | ||
852 | while (len>=16) { | |
853 | for (i=0; i<16; ++i) ctx->Yi.c[i] ^= iv[i]; | |
854 | GCM_MUL(ctx,Yi); | |
855 | iv += 16; | |
856 | len -= 16; | |
857 | } | |
858 | if (len) { | |
859 | for (i=0; i<len; ++i) ctx->Yi.c[i] ^= iv[i]; | |
860 | GCM_MUL(ctx,Yi); | |
861 | } | |
862 | len0 <<= 3; | |
863 | if (is_endian.little) { | |
864 | #ifdef BSWAP8 | |
865 | ctx->Yi.u[1] ^= BSWAP8(len0); | |
866 | #else | |
867 | ctx->Yi.c[8] ^= (u8)(len0>>56); | |
868 | ctx->Yi.c[9] ^= (u8)(len0>>48); | |
869 | ctx->Yi.c[10] ^= (u8)(len0>>40); | |
870 | ctx->Yi.c[11] ^= (u8)(len0>>32); | |
871 | ctx->Yi.c[12] ^= (u8)(len0>>24); | |
872 | ctx->Yi.c[13] ^= (u8)(len0>>16); | |
873 | ctx->Yi.c[14] ^= (u8)(len0>>8); | |
874 | ctx->Yi.c[15] ^= (u8)(len0); | |
875 | #endif | |
876 | } | |
877 | else | |
878 | ctx->Yi.u[1] ^= len0; | |
879 | ||
880 | GCM_MUL(ctx,Yi); | |
881 | ||
882 | if (is_endian.little) | |
f396e9f4 AP |
883 | #ifdef BSWAP4 |
884 | ctr = BSWAP4(ctx->Yi.d[3]); | |
885 | #else | |
61cdb9f3 | 886 | ctr = GETU32(ctx->Yi.c+12); |
f396e9f4 | 887 | #endif |
61cdb9f3 DSH |
888 | else |
889 | ctr = ctx->Yi.d[3]; | |
890 | } | |
891 | ||
892 | (*ctx->block)(ctx->Yi.c,ctx->EK0.c,ctx->key); | |
893 | ++ctr; | |
894 | if (is_endian.little) | |
f396e9f4 AP |
895 | #ifdef BSWAP4 |
896 | ctx->Yi.d[3] = BSWAP4(ctr); | |
897 | #else | |
61cdb9f3 | 898 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 899 | #endif |
61cdb9f3 DSH |
900 | else |
901 | ctx->Yi.d[3] = ctr; | |
902 | } | |
903 | ||
904 | int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx,const unsigned char *aad,size_t len) | |
905 | { | |
906 | size_t i; | |
907 | unsigned int n; | |
908 | u64 alen = ctx->len.u[0]; | |
909 | #ifdef GCM_FUNCREF_4BIT | |
910 | void (*gcm_gmult_p)(u64 Xi[2],const u128 Htable[16]) = ctx->gmult; | |
911 | # ifdef GHASH | |
912 | void (*gcm_ghash_p)(u64 Xi[2],const u128 Htable[16], | |
913 | const u8 *inp,size_t len) = ctx->ghash; | |
914 | # endif | |
915 | #endif | |
916 | ||
917 | if (ctx->len.u[1]) return -2; | |
918 | ||
919 | alen += len; | |
920 | if (alen>(U64(1)<<61) || (sizeof(len)==8 && alen<len)) | |
921 | return -1; | |
922 | ctx->len.u[0] = alen; | |
923 | ||
924 | n = ctx->ares; | |
925 | if (n) { | |
926 | while (n && len) { | |
927 | ctx->Xi.c[n] ^= *(aad++); | |
928 | --len; | |
929 | n = (n+1)%16; | |
930 | } | |
931 | if (n==0) GCM_MUL(ctx,Xi); | |
932 | else { | |
933 | ctx->ares = n; | |
934 | return 0; | |
935 | } | |
936 | } | |
937 | ||
938 | #ifdef GHASH | |
939 | if ((i = (len&(size_t)-16))) { | |
940 | GHASH(ctx,aad,i); | |
941 | aad += i; | |
942 | len -= i; | |
943 | } | |
944 | #else | |
945 | while (len>=16) { | |
946 | for (i=0; i<16; ++i) ctx->Xi.c[i] ^= aad[i]; | |
947 | GCM_MUL(ctx,Xi); | |
948 | aad += 16; | |
949 | len -= 16; | |
950 | } | |
951 | #endif | |
952 | if (len) { | |
953 | n = (unsigned int)len; | |
954 | for (i=0; i<len; ++i) ctx->Xi.c[i] ^= aad[i]; | |
955 | } | |
956 | ||
957 | ctx->ares = n; | |
958 | return 0; | |
959 | } | |
960 | ||
961 | int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, | |
962 | const unsigned char *in, unsigned char *out, | |
963 | size_t len) | |
964 | { | |
965 | const union { long one; char little; } is_endian = {1}; | |
966 | unsigned int n, ctr; | |
967 | size_t i; | |
968 | u64 mlen = ctx->len.u[1]; | |
969 | block128_f block = ctx->block; | |
970 | void *key = ctx->key; | |
971 | #ifdef GCM_FUNCREF_4BIT | |
972 | void (*gcm_gmult_p)(u64 Xi[2],const u128 Htable[16]) = ctx->gmult; | |
973 | # ifdef GHASH | |
974 | void (*gcm_ghash_p)(u64 Xi[2],const u128 Htable[16], | |
975 | const u8 *inp,size_t len) = ctx->ghash; | |
976 | # endif | |
977 | #endif | |
978 | ||
979 | #if 0 | |
980 | n = (unsigned int)mlen%16; /* alternative to ctx->mres */ | |
981 | #endif | |
982 | mlen += len; | |
983 | if (mlen>((U64(1)<<36)-32) || (sizeof(len)==8 && mlen<len)) | |
984 | return -1; | |
985 | ctx->len.u[1] = mlen; | |
986 | ||
987 | if (ctx->ares) { | |
988 | /* First call to encrypt finalizes GHASH(AAD) */ | |
989 | GCM_MUL(ctx,Xi); | |
990 | ctx->ares = 0; | |
991 | } | |
992 | ||
993 | if (is_endian.little) | |
f396e9f4 AP |
994 | #ifdef BSWAP4 |
995 | ctr = BSWAP4(ctx->Yi.d[3]); | |
996 | #else | |
61cdb9f3 | 997 | ctr = GETU32(ctx->Yi.c+12); |
f396e9f4 | 998 | #endif |
61cdb9f3 DSH |
999 | else |
1000 | ctr = ctx->Yi.d[3]; | |
1001 | ||
1002 | n = ctx->mres; | |
1003 | #if !defined(OPENSSL_SMALL_FOOTPRINT) | |
1004 | if (16%sizeof(size_t) == 0) do { /* always true actually */ | |
1005 | if (n) { | |
1006 | while (n && len) { | |
1007 | ctx->Xi.c[n] ^= *(out++) = *(in++)^ctx->EKi.c[n]; | |
1008 | --len; | |
1009 | n = (n+1)%16; | |
1010 | } | |
1011 | if (n==0) GCM_MUL(ctx,Xi); | |
1012 | else { | |
1013 | ctx->mres = n; | |
1014 | return 0; | |
1015 | } | |
1016 | } | |
1017 | #if defined(STRICT_ALIGNMENT) | |
1018 | if (((size_t)in|(size_t)out)%sizeof(size_t) != 0) | |
1019 | break; | |
1020 | #endif | |
1021 | #if defined(GHASH) && defined(GHASH_CHUNK) | |
1022 | while (len>=GHASH_CHUNK) { | |
1023 | size_t j=GHASH_CHUNK; | |
1024 | ||
1025 | while (j) { | |
0ba304dd AP |
1026 | size_t *out_t=(size_t *)out; |
1027 | const size_t *in_t=(const size_t *)in; | |
1028 | ||
61cdb9f3 DSH |
1029 | (*block)(ctx->Yi.c,ctx->EKi.c,key); |
1030 | ++ctr; | |
1031 | if (is_endian.little) | |
f396e9f4 AP |
1032 | #ifdef BSWAP4 |
1033 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1034 | #else | |
61cdb9f3 | 1035 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1036 | #endif |
61cdb9f3 DSH |
1037 | else |
1038 | ctx->Yi.d[3] = ctr; | |
0ba304dd AP |
1039 | for (i=0; i<16/sizeof(size_t); ++i) |
1040 | out_t[i] = in_t[i] ^ ctx->EKi.t[i]; | |
61cdb9f3 DSH |
1041 | out += 16; |
1042 | in += 16; | |
1043 | j -= 16; | |
1044 | } | |
1045 | GHASH(ctx,out-GHASH_CHUNK,GHASH_CHUNK); | |
1046 | len -= GHASH_CHUNK; | |
1047 | } | |
1048 | if ((i = (len&(size_t)-16))) { | |
1049 | size_t j=i; | |
1050 | ||
1051 | while (len>=16) { | |
0ba304dd AP |
1052 | size_t *out_t=(size_t *)out; |
1053 | const size_t *in_t=(const size_t *)in; | |
1054 | ||
61cdb9f3 DSH |
1055 | (*block)(ctx->Yi.c,ctx->EKi.c,key); |
1056 | ++ctr; | |
1057 | if (is_endian.little) | |
f396e9f4 AP |
1058 | #ifdef BSWAP4 |
1059 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1060 | #else | |
61cdb9f3 | 1061 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1062 | #endif |
61cdb9f3 DSH |
1063 | else |
1064 | ctx->Yi.d[3] = ctr; | |
0ba304dd AP |
1065 | for (i=0; i<16/sizeof(size_t); ++i) |
1066 | out_t[i] = in_t[i] ^ ctx->EKi.t[i]; | |
61cdb9f3 DSH |
1067 | out += 16; |
1068 | in += 16; | |
1069 | len -= 16; | |
1070 | } | |
1071 | GHASH(ctx,out-j,j); | |
1072 | } | |
1073 | #else | |
1074 | while (len>=16) { | |
0ba304dd AP |
1075 | size_t *out_t=(size_t *)out; |
1076 | const size_t *in_t=(const size_t *)in; | |
1077 | ||
61cdb9f3 DSH |
1078 | (*block)(ctx->Yi.c,ctx->EKi.c,key); |
1079 | ++ctr; | |
1080 | if (is_endian.little) | |
f396e9f4 AP |
1081 | #ifdef BSWAP4 |
1082 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1083 | #else | |
61cdb9f3 | 1084 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1085 | #endif |
61cdb9f3 DSH |
1086 | else |
1087 | ctx->Yi.d[3] = ctr; | |
0ba304dd AP |
1088 | for (i=0; i<16/sizeof(size_t); ++i) |
1089 | ctx->Xi.t[i] ^= | |
1090 | out_t[i] = in_t[i]^ctx->EKi.t[i]; | |
61cdb9f3 DSH |
1091 | GCM_MUL(ctx,Xi); |
1092 | out += 16; | |
1093 | in += 16; | |
1094 | len -= 16; | |
1095 | } | |
1096 | #endif | |
1097 | if (len) { | |
1098 | (*block)(ctx->Yi.c,ctx->EKi.c,key); | |
1099 | ++ctr; | |
1100 | if (is_endian.little) | |
f396e9f4 AP |
1101 | #ifdef BSWAP4 |
1102 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1103 | #else | |
61cdb9f3 | 1104 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1105 | #endif |
61cdb9f3 DSH |
1106 | else |
1107 | ctx->Yi.d[3] = ctr; | |
1108 | while (len--) { | |
1109 | ctx->Xi.c[n] ^= out[n] = in[n]^ctx->EKi.c[n]; | |
1110 | ++n; | |
1111 | } | |
1112 | } | |
1113 | ||
1114 | ctx->mres = n; | |
1115 | return 0; | |
1116 | } while(0); | |
1117 | #endif | |
1118 | for (i=0;i<len;++i) { | |
1119 | if (n==0) { | |
1120 | (*block)(ctx->Yi.c,ctx->EKi.c,key); | |
1121 | ++ctr; | |
1122 | if (is_endian.little) | |
f396e9f4 AP |
1123 | #ifdef BSWAP4 |
1124 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1125 | #else | |
61cdb9f3 | 1126 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1127 | #endif |
61cdb9f3 DSH |
1128 | else |
1129 | ctx->Yi.d[3] = ctr; | |
1130 | } | |
1131 | ctx->Xi.c[n] ^= out[i] = in[i]^ctx->EKi.c[n]; | |
1132 | n = (n+1)%16; | |
1133 | if (n==0) | |
1134 | GCM_MUL(ctx,Xi); | |
1135 | } | |
1136 | ||
1137 | ctx->mres = n; | |
1138 | return 0; | |
1139 | } | |
1140 | ||
1141 | int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, | |
1142 | const unsigned char *in, unsigned char *out, | |
1143 | size_t len) | |
1144 | { | |
1145 | const union { long one; char little; } is_endian = {1}; | |
1146 | unsigned int n, ctr; | |
1147 | size_t i; | |
1148 | u64 mlen = ctx->len.u[1]; | |
1149 | block128_f block = ctx->block; | |
1150 | void *key = ctx->key; | |
1151 | #ifdef GCM_FUNCREF_4BIT | |
1152 | void (*gcm_gmult_p)(u64 Xi[2],const u128 Htable[16]) = ctx->gmult; | |
1153 | # ifdef GHASH | |
1154 | void (*gcm_ghash_p)(u64 Xi[2],const u128 Htable[16], | |
1155 | const u8 *inp,size_t len) = ctx->ghash; | |
1156 | # endif | |
1157 | #endif | |
1158 | ||
1159 | mlen += len; | |
1160 | if (mlen>((U64(1)<<36)-32) || (sizeof(len)==8 && mlen<len)) | |
1161 | return -1; | |
1162 | ctx->len.u[1] = mlen; | |
1163 | ||
1164 | if (ctx->ares) { | |
1165 | /* First call to decrypt finalizes GHASH(AAD) */ | |
1166 | GCM_MUL(ctx,Xi); | |
1167 | ctx->ares = 0; | |
1168 | } | |
1169 | ||
1170 | if (is_endian.little) | |
f396e9f4 AP |
1171 | #ifdef BSWAP4 |
1172 | ctr = BSWAP4(ctx->Yi.d[3]); | |
1173 | #else | |
61cdb9f3 | 1174 | ctr = GETU32(ctx->Yi.c+12); |
f396e9f4 | 1175 | #endif |
61cdb9f3 DSH |
1176 | else |
1177 | ctr = ctx->Yi.d[3]; | |
1178 | ||
1179 | n = ctx->mres; | |
1180 | #if !defined(OPENSSL_SMALL_FOOTPRINT) | |
1181 | if (16%sizeof(size_t) == 0) do { /* always true actually */ | |
1182 | if (n) { | |
1183 | while (n && len) { | |
1184 | u8 c = *(in++); | |
1185 | *(out++) = c^ctx->EKi.c[n]; | |
1186 | ctx->Xi.c[n] ^= c; | |
1187 | --len; | |
1188 | n = (n+1)%16; | |
1189 | } | |
1190 | if (n==0) GCM_MUL (ctx,Xi); | |
1191 | else { | |
1192 | ctx->mres = n; | |
1193 | return 0; | |
1194 | } | |
1195 | } | |
1196 | #if defined(STRICT_ALIGNMENT) | |
1197 | if (((size_t)in|(size_t)out)%sizeof(size_t) != 0) | |
1198 | break; | |
1199 | #endif | |
1200 | #if defined(GHASH) && defined(GHASH_CHUNK) | |
1201 | while (len>=GHASH_CHUNK) { | |
1202 | size_t j=GHASH_CHUNK; | |
1203 | ||
1204 | GHASH(ctx,in,GHASH_CHUNK); | |
1205 | while (j) { | |
0ba304dd AP |
1206 | size_t *out_t=(size_t *)out; |
1207 | const size_t *in_t=(const size_t *)in; | |
1208 | ||
61cdb9f3 DSH |
1209 | (*block)(ctx->Yi.c,ctx->EKi.c,key); |
1210 | ++ctr; | |
1211 | if (is_endian.little) | |
f396e9f4 AP |
1212 | #ifdef BSWAP4 |
1213 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1214 | #else | |
61cdb9f3 | 1215 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1216 | #endif |
61cdb9f3 DSH |
1217 | else |
1218 | ctx->Yi.d[3] = ctr; | |
0ba304dd AP |
1219 | for (i=0; i<16/sizeof(size_t); ++i) |
1220 | out_t[i] = in_t[i]^ctx->EKi.t[i]; | |
61cdb9f3 DSH |
1221 | out += 16; |
1222 | in += 16; | |
1223 | j -= 16; | |
1224 | } | |
1225 | len -= GHASH_CHUNK; | |
1226 | } | |
1227 | if ((i = (len&(size_t)-16))) { | |
1228 | GHASH(ctx,in,i); | |
1229 | while (len>=16) { | |
0ba304dd AP |
1230 | size_t *out_t=(size_t *)out; |
1231 | const size_t *in_t=(const size_t *)in; | |
1232 | ||
61cdb9f3 DSH |
1233 | (*block)(ctx->Yi.c,ctx->EKi.c,key); |
1234 | ++ctr; | |
1235 | if (is_endian.little) | |
f396e9f4 AP |
1236 | #ifdef BSWAP4 |
1237 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1238 | #else | |
61cdb9f3 | 1239 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1240 | #endif |
61cdb9f3 DSH |
1241 | else |
1242 | ctx->Yi.d[3] = ctr; | |
0ba304dd AP |
1243 | for (i=0; i<16/sizeof(size_t); ++i) |
1244 | out_t[i] = in_t[i]^ctx->EKi.t[i]; | |
61cdb9f3 DSH |
1245 | out += 16; |
1246 | in += 16; | |
1247 | len -= 16; | |
1248 | } | |
1249 | } | |
1250 | #else | |
1251 | while (len>=16) { | |
0ba304dd AP |
1252 | size_t *out_t=(size_t *)out; |
1253 | const size_t *in_t=(const size_t *)in; | |
1254 | ||
61cdb9f3 DSH |
1255 | (*block)(ctx->Yi.c,ctx->EKi.c,key); |
1256 | ++ctr; | |
1257 | if (is_endian.little) | |
f396e9f4 AP |
1258 | #ifdef BSWAP4 |
1259 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1260 | #else | |
61cdb9f3 | 1261 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1262 | #endif |
61cdb9f3 DSH |
1263 | else |
1264 | ctx->Yi.d[3] = ctr; | |
0ba304dd AP |
1265 | for (i=0; i<16/sizeof(size_t); ++i) { |
1266 | size_t c = in[i]; | |
1267 | out[i] = c^ctx->EKi.t[i]; | |
1268 | ctx->Xi.t[i] ^= c; | |
61cdb9f3 DSH |
1269 | } |
1270 | GCM_MUL(ctx,Xi); | |
1271 | out += 16; | |
1272 | in += 16; | |
1273 | len -= 16; | |
1274 | } | |
1275 | #endif | |
1276 | if (len) { | |
1277 | (*block)(ctx->Yi.c,ctx->EKi.c,key); | |
1278 | ++ctr; | |
1279 | if (is_endian.little) | |
f396e9f4 AP |
1280 | #ifdef BSWAP4 |
1281 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1282 | #else | |
61cdb9f3 | 1283 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1284 | #endif |
61cdb9f3 DSH |
1285 | else |
1286 | ctx->Yi.d[3] = ctr; | |
1287 | while (len--) { | |
1288 | u8 c = in[n]; | |
1289 | ctx->Xi.c[n] ^= c; | |
1290 | out[n] = c^ctx->EKi.c[n]; | |
1291 | ++n; | |
1292 | } | |
1293 | } | |
1294 | ||
1295 | ctx->mres = n; | |
1296 | return 0; | |
1297 | } while(0); | |
1298 | #endif | |
1299 | for (i=0;i<len;++i) { | |
1300 | u8 c; | |
1301 | if (n==0) { | |
1302 | (*block)(ctx->Yi.c,ctx->EKi.c,key); | |
1303 | ++ctr; | |
1304 | if (is_endian.little) | |
f396e9f4 AP |
1305 | #ifdef BSWAP4 |
1306 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1307 | #else | |
61cdb9f3 | 1308 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1309 | #endif |
61cdb9f3 DSH |
1310 | else |
1311 | ctx->Yi.d[3] = ctr; | |
1312 | } | |
1313 | c = in[i]; | |
1314 | out[i] = c^ctx->EKi.c[n]; | |
1315 | ctx->Xi.c[n] ^= c; | |
1316 | n = (n+1)%16; | |
1317 | if (n==0) | |
1318 | GCM_MUL(ctx,Xi); | |
1319 | } | |
1320 | ||
1321 | ctx->mres = n; | |
1322 | return 0; | |
1323 | } | |
1324 | ||
1325 | int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, | |
1326 | const unsigned char *in, unsigned char *out, | |
1327 | size_t len, ctr128_f stream) | |
1328 | { | |
1329 | const union { long one; char little; } is_endian = {1}; | |
1330 | unsigned int n, ctr; | |
1331 | size_t i; | |
1332 | u64 mlen = ctx->len.u[1]; | |
1333 | void *key = ctx->key; | |
1334 | #ifdef GCM_FUNCREF_4BIT | |
1335 | void (*gcm_gmult_p)(u64 Xi[2],const u128 Htable[16]) = ctx->gmult; | |
1336 | # ifdef GHASH | |
1337 | void (*gcm_ghash_p)(u64 Xi[2],const u128 Htable[16], | |
1338 | const u8 *inp,size_t len) = ctx->ghash; | |
1339 | # endif | |
1340 | #endif | |
1341 | ||
1342 | mlen += len; | |
1343 | if (mlen>((U64(1)<<36)-32) || (sizeof(len)==8 && mlen<len)) | |
1344 | return -1; | |
1345 | ctx->len.u[1] = mlen; | |
1346 | ||
1347 | if (ctx->ares) { | |
1348 | /* First call to encrypt finalizes GHASH(AAD) */ | |
1349 | GCM_MUL(ctx,Xi); | |
1350 | ctx->ares = 0; | |
1351 | } | |
1352 | ||
1353 | if (is_endian.little) | |
f396e9f4 AP |
1354 | #ifdef BSWAP4 |
1355 | ctr = BSWAP4(ctx->Yi.d[3]); | |
1356 | #else | |
61cdb9f3 | 1357 | ctr = GETU32(ctx->Yi.c+12); |
f396e9f4 | 1358 | #endif |
61cdb9f3 DSH |
1359 | else |
1360 | ctr = ctx->Yi.d[3]; | |
1361 | ||
1362 | n = ctx->mres; | |
1363 | if (n) { | |
1364 | while (n && len) { | |
1365 | ctx->Xi.c[n] ^= *(out++) = *(in++)^ctx->EKi.c[n]; | |
1366 | --len; | |
1367 | n = (n+1)%16; | |
1368 | } | |
1369 | if (n==0) GCM_MUL(ctx,Xi); | |
1370 | else { | |
1371 | ctx->mres = n; | |
1372 | return 0; | |
1373 | } | |
1374 | } | |
1375 | #if defined(GHASH) && !defined(OPENSSL_SMALL_FOOTPRINT) | |
1376 | while (len>=GHASH_CHUNK) { | |
1377 | (*stream)(in,out,GHASH_CHUNK/16,key,ctx->Yi.c); | |
1378 | ctr += GHASH_CHUNK/16; | |
1379 | if (is_endian.little) | |
f396e9f4 AP |
1380 | #ifdef BSWAP4 |
1381 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1382 | #else | |
61cdb9f3 | 1383 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1384 | #endif |
61cdb9f3 DSH |
1385 | else |
1386 | ctx->Yi.d[3] = ctr; | |
1387 | GHASH(ctx,out,GHASH_CHUNK); | |
1388 | out += GHASH_CHUNK; | |
1389 | in += GHASH_CHUNK; | |
1390 | len -= GHASH_CHUNK; | |
1391 | } | |
1392 | #endif | |
1393 | if ((i = (len&(size_t)-16))) { | |
1394 | size_t j=i/16; | |
1395 | ||
1396 | (*stream)(in,out,j,key,ctx->Yi.c); | |
1397 | ctr += (unsigned int)j; | |
1398 | if (is_endian.little) | |
f396e9f4 AP |
1399 | #ifdef BSWAP4 |
1400 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1401 | #else | |
61cdb9f3 | 1402 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1403 | #endif |
61cdb9f3 DSH |
1404 | else |
1405 | ctx->Yi.d[3] = ctr; | |
1406 | in += i; | |
1407 | len -= i; | |
1408 | #if defined(GHASH) | |
1409 | GHASH(ctx,out,i); | |
1410 | out += i; | |
1411 | #else | |
1412 | while (j--) { | |
1413 | for (i=0;i<16;++i) ctx->Xi.c[i] ^= out[i]; | |
1414 | GCM_MUL(ctx,Xi); | |
1415 | out += 16; | |
1416 | } | |
1417 | #endif | |
1418 | } | |
1419 | if (len) { | |
1420 | (*ctx->block)(ctx->Yi.c,ctx->EKi.c,key); | |
1421 | ++ctr; | |
1422 | if (is_endian.little) | |
f396e9f4 AP |
1423 | #ifdef BSWAP4 |
1424 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1425 | #else | |
61cdb9f3 | 1426 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1427 | #endif |
61cdb9f3 DSH |
1428 | else |
1429 | ctx->Yi.d[3] = ctr; | |
1430 | while (len--) { | |
1431 | ctx->Xi.c[n] ^= out[n] = in[n]^ctx->EKi.c[n]; | |
1432 | ++n; | |
1433 | } | |
1434 | } | |
1435 | ||
1436 | ctx->mres = n; | |
1437 | return 0; | |
1438 | } | |
1439 | ||
1440 | int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, | |
1441 | const unsigned char *in, unsigned char *out, | |
1442 | size_t len,ctr128_f stream) | |
1443 | { | |
1444 | const union { long one; char little; } is_endian = {1}; | |
1445 | unsigned int n, ctr; | |
1446 | size_t i; | |
1447 | u64 mlen = ctx->len.u[1]; | |
1448 | void *key = ctx->key; | |
1449 | #ifdef GCM_FUNCREF_4BIT | |
1450 | void (*gcm_gmult_p)(u64 Xi[2],const u128 Htable[16]) = ctx->gmult; | |
1451 | # ifdef GHASH | |
1452 | void (*gcm_ghash_p)(u64 Xi[2],const u128 Htable[16], | |
1453 | const u8 *inp,size_t len) = ctx->ghash; | |
1454 | # endif | |
1455 | #endif | |
1456 | ||
1457 | mlen += len; | |
1458 | if (mlen>((U64(1)<<36)-32) || (sizeof(len)==8 && mlen<len)) | |
1459 | return -1; | |
1460 | ctx->len.u[1] = mlen; | |
1461 | ||
1462 | if (ctx->ares) { | |
1463 | /* First call to decrypt finalizes GHASH(AAD) */ | |
1464 | GCM_MUL(ctx,Xi); | |
1465 | ctx->ares = 0; | |
1466 | } | |
1467 | ||
1468 | if (is_endian.little) | |
f396e9f4 AP |
1469 | #ifdef BSWAP4 |
1470 | ctr = BSWAP4(ctx->Yi.d[3]); | |
1471 | #else | |
61cdb9f3 | 1472 | ctr = GETU32(ctx->Yi.c+12); |
f396e9f4 | 1473 | #endif |
61cdb9f3 DSH |
1474 | else |
1475 | ctr = ctx->Yi.d[3]; | |
1476 | ||
1477 | n = ctx->mres; | |
1478 | if (n) { | |
1479 | while (n && len) { | |
1480 | u8 c = *(in++); | |
1481 | *(out++) = c^ctx->EKi.c[n]; | |
1482 | ctx->Xi.c[n] ^= c; | |
1483 | --len; | |
1484 | n = (n+1)%16; | |
1485 | } | |
1486 | if (n==0) GCM_MUL (ctx,Xi); | |
1487 | else { | |
1488 | ctx->mres = n; | |
1489 | return 0; | |
1490 | } | |
1491 | } | |
1492 | #if defined(GHASH) && !defined(OPENSSL_SMALL_FOOTPRINT) | |
1493 | while (len>=GHASH_CHUNK) { | |
1494 | GHASH(ctx,in,GHASH_CHUNK); | |
1495 | (*stream)(in,out,GHASH_CHUNK/16,key,ctx->Yi.c); | |
1496 | ctr += GHASH_CHUNK/16; | |
1497 | if (is_endian.little) | |
f396e9f4 AP |
1498 | #ifdef BSWAP4 |
1499 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1500 | #else | |
61cdb9f3 | 1501 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1502 | #endif |
61cdb9f3 DSH |
1503 | else |
1504 | ctx->Yi.d[3] = ctr; | |
1505 | out += GHASH_CHUNK; | |
1506 | in += GHASH_CHUNK; | |
1507 | len -= GHASH_CHUNK; | |
1508 | } | |
1509 | #endif | |
1510 | if ((i = (len&(size_t)-16))) { | |
1511 | size_t j=i/16; | |
1512 | ||
1513 | #if defined(GHASH) | |
1514 | GHASH(ctx,in,i); | |
1515 | #else | |
1516 | while (j--) { | |
1517 | size_t k; | |
1518 | for (k=0;k<16;++k) ctx->Xi.c[k] ^= in[k]; | |
1519 | GCM_MUL(ctx,Xi); | |
1520 | in += 16; | |
1521 | } | |
1522 | j = i/16; | |
1523 | in -= i; | |
1524 | #endif | |
1525 | (*stream)(in,out,j,key,ctx->Yi.c); | |
1526 | ctr += (unsigned int)j; | |
1527 | if (is_endian.little) | |
f396e9f4 AP |
1528 | #ifdef BSWAP4 |
1529 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1530 | #else | |
61cdb9f3 | 1531 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1532 | #endif |
61cdb9f3 DSH |
1533 | else |
1534 | ctx->Yi.d[3] = ctr; | |
1535 | out += i; | |
1536 | in += i; | |
1537 | len -= i; | |
1538 | } | |
1539 | if (len) { | |
1540 | (*ctx->block)(ctx->Yi.c,ctx->EKi.c,key); | |
1541 | ++ctr; | |
1542 | if (is_endian.little) | |
f396e9f4 AP |
1543 | #ifdef BSWAP4 |
1544 | ctx->Yi.d[3] = BSWAP4(ctr); | |
1545 | #else | |
61cdb9f3 | 1546 | PUTU32(ctx->Yi.c+12,ctr); |
f396e9f4 | 1547 | #endif |
61cdb9f3 DSH |
1548 | else |
1549 | ctx->Yi.d[3] = ctr; | |
1550 | while (len--) { | |
1551 | u8 c = in[n]; | |
1552 | ctx->Xi.c[n] ^= c; | |
1553 | out[n] = c^ctx->EKi.c[n]; | |
1554 | ++n; | |
1555 | } | |
1556 | } | |
1557 | ||
1558 | ctx->mres = n; | |
1559 | return 0; | |
1560 | } | |
1561 | ||
1562 | int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx,const unsigned char *tag, | |
1563 | size_t len) | |
1564 | { | |
1565 | const union { long one; char little; } is_endian = {1}; | |
1566 | u64 alen = ctx->len.u[0]<<3; | |
1567 | u64 clen = ctx->len.u[1]<<3; | |
1568 | #ifdef GCM_FUNCREF_4BIT | |
1569 | void (*gcm_gmult_p)(u64 Xi[2],const u128 Htable[16]) = ctx->gmult; | |
1570 | #endif | |
1571 | ||
f0a069c1 | 1572 | if (ctx->mres || ctx->ares) |
61cdb9f3 DSH |
1573 | GCM_MUL(ctx,Xi); |
1574 | ||
1575 | if (is_endian.little) { | |
1576 | #ifdef BSWAP8 | |
1577 | alen = BSWAP8(alen); | |
1578 | clen = BSWAP8(clen); | |
1579 | #else | |
1580 | u8 *p = ctx->len.c; | |
1581 | ||
1582 | ctx->len.u[0] = alen; | |
1583 | ctx->len.u[1] = clen; | |
1584 | ||
1585 | alen = (u64)GETU32(p) <<32|GETU32(p+4); | |
1586 | clen = (u64)GETU32(p+8)<<32|GETU32(p+12); | |
1587 | #endif | |
1588 | } | |
1589 | ||
1590 | ctx->Xi.u[0] ^= alen; | |
1591 | ctx->Xi.u[1] ^= clen; | |
1592 | GCM_MUL(ctx,Xi); | |
1593 | ||
1594 | ctx->Xi.u[0] ^= ctx->EK0.u[0]; | |
1595 | ctx->Xi.u[1] ^= ctx->EK0.u[1]; | |
1596 | ||
1597 | if (tag && len<=sizeof(ctx->Xi)) | |
1598 | return memcmp(ctx->Xi.c,tag,len); | |
1599 | else | |
1600 | return -1; | |
1601 | } | |
1602 | ||
1603 | void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, unsigned char *tag, size_t len) | |
1604 | { | |
1605 | CRYPTO_gcm128_finish(ctx, NULL, 0); | |
1606 | memcpy(tag, ctx->Xi.c, len<=sizeof(ctx->Xi.c)?len:sizeof(ctx->Xi.c)); | |
1607 | } | |
1608 | ||
1609 | GCM128_CONTEXT *CRYPTO_gcm128_new(void *key, block128_f block) | |
1610 | { | |
1611 | GCM128_CONTEXT *ret; | |
1612 | ||
1613 | if ((ret = (GCM128_CONTEXT *)OPENSSL_malloc(sizeof(GCM128_CONTEXT)))) | |
1614 | CRYPTO_gcm128_init(ret,key,block); | |
1615 | ||
1616 | return ret; | |
1617 | } | |
1618 | ||
1619 | void CRYPTO_gcm128_release(GCM128_CONTEXT *ctx) | |
1620 | { | |
1621 | if (ctx) { | |
1622 | OPENSSL_cleanse(ctx,sizeof(*ctx)); | |
1623 | OPENSSL_free(ctx); | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | #if defined(SELFTEST) | |
1628 | #include <stdio.h> | |
1629 | #include <openssl/aes.h> | |
1630 | ||
1631 | /* Test Case 1 */ | |
1632 | static const u8 K1[16], | |
1633 | *P1=NULL, | |
1634 | *A1=NULL, | |
1635 | IV1[12], | |
1636 | *C1=NULL, | |
1637 | T1[]= {0x58,0xe2,0xfc,0xce,0xfa,0x7e,0x30,0x61,0x36,0x7f,0x1d,0x57,0xa4,0xe7,0x45,0x5a}; | |
1638 | ||
1639 | /* Test Case 2 */ | |
1640 | #define K2 K1 | |
1641 | #define A2 A1 | |
1642 | #define IV2 IV1 | |
1643 | static const u8 P2[16], | |
1644 | C2[]= {0x03,0x88,0xda,0xce,0x60,0xb6,0xa3,0x92,0xf3,0x28,0xc2,0xb9,0x71,0xb2,0xfe,0x78}, | |
1645 | T2[]= {0xab,0x6e,0x47,0xd4,0x2c,0xec,0x13,0xbd,0xf5,0x3a,0x67,0xb2,0x12,0x57,0xbd,0xdf}; | |
1646 | ||
1647 | /* Test Case 3 */ | |
1648 | #define A3 A2 | |
1649 | static const u8 K3[]= {0xfe,0xff,0xe9,0x92,0x86,0x65,0x73,0x1c,0x6d,0x6a,0x8f,0x94,0x67,0x30,0x83,0x08}, | |
1650 | P3[]= {0xd9,0x31,0x32,0x25,0xf8,0x84,0x06,0xe5,0xa5,0x59,0x09,0xc5,0xaf,0xf5,0x26,0x9a, | |
1651 | 0x86,0xa7,0xa9,0x53,0x15,0x34,0xf7,0xda,0x2e,0x4c,0x30,0x3d,0x8a,0x31,0x8a,0x72, | |
1652 | 0x1c,0x3c,0x0c,0x95,0x95,0x68,0x09,0x53,0x2f,0xcf,0x0e,0x24,0x49,0xa6,0xb5,0x25, | |
1653 | 0xb1,0x6a,0xed,0xf5,0xaa,0x0d,0xe6,0x57,0xba,0x63,0x7b,0x39,0x1a,0xaf,0xd2,0x55}, | |
1654 | IV3[]= {0xca,0xfe,0xba,0xbe,0xfa,0xce,0xdb,0xad,0xde,0xca,0xf8,0x88}, | |
1655 | C3[]= {0x42,0x83,0x1e,0xc2,0x21,0x77,0x74,0x24,0x4b,0x72,0x21,0xb7,0x84,0xd0,0xd4,0x9c, | |
1656 | 0xe3,0xaa,0x21,0x2f,0x2c,0x02,0xa4,0xe0,0x35,0xc1,0x7e,0x23,0x29,0xac,0xa1,0x2e, | |
1657 | 0x21,0xd5,0x14,0xb2,0x54,0x66,0x93,0x1c,0x7d,0x8f,0x6a,0x5a,0xac,0x84,0xaa,0x05, | |
1658 | 0x1b,0xa3,0x0b,0x39,0x6a,0x0a,0xac,0x97,0x3d,0x58,0xe0,0x91,0x47,0x3f,0x59,0x85}, | |
1659 | T3[]= {0x4d,0x5c,0x2a,0xf3,0x27,0xcd,0x64,0xa6,0x2c,0xf3,0x5a,0xbd,0x2b,0xa6,0xfa,0xb4}; | |
1660 | ||
1661 | /* Test Case 4 */ | |
1662 | #define K4 K3 | |
1663 | #define IV4 IV3 | |
1664 | static const u8 P4[]= {0xd9,0x31,0x32,0x25,0xf8,0x84,0x06,0xe5,0xa5,0x59,0x09,0xc5,0xaf,0xf5,0x26,0x9a, | |
1665 | 0x86,0xa7,0xa9,0x53,0x15,0x34,0xf7,0xda,0x2e,0x4c,0x30,0x3d,0x8a,0x31,0x8a,0x72, | |
1666 | 0x1c,0x3c,0x0c,0x95,0x95,0x68,0x09,0x53,0x2f,0xcf,0x0e,0x24,0x49,0xa6,0xb5,0x25, | |
1667 | 0xb1,0x6a,0xed,0xf5,0xaa,0x0d,0xe6,0x57,0xba,0x63,0x7b,0x39}, | |
1668 | A4[]= {0xfe,0xed,0xfa,0xce,0xde,0xad,0xbe,0xef,0xfe,0xed,0xfa,0xce,0xde,0xad,0xbe,0xef, | |
1669 | 0xab,0xad,0xda,0xd2}, | |
1670 | C4[]= {0x42,0x83,0x1e,0xc2,0x21,0x77,0x74,0x24,0x4b,0x72,0x21,0xb7,0x84,0xd0,0xd4,0x9c, | |
1671 | 0xe3,0xaa,0x21,0x2f,0x2c,0x02,0xa4,0xe0,0x35,0xc1,0x7e,0x23,0x29,0xac,0xa1,0x2e, | |
1672 | 0x21,0xd5,0x14,0xb2,0x54,0x66,0x93,0x1c,0x7d,0x8f,0x6a,0x5a,0xac,0x84,0xaa,0x05, | |
1673 | 0x1b,0xa3,0x0b,0x39,0x6a,0x0a,0xac,0x97,0x3d,0x58,0xe0,0x91}, | |
1674 | T4[]= {0x5b,0xc9,0x4f,0xbc,0x32,0x21,0xa5,0xdb,0x94,0xfa,0xe9,0x5a,0xe7,0x12,0x1a,0x47}; | |
1675 | ||
1676 | /* Test Case 5 */ | |
1677 | #define K5 K4 | |
1678 | #define P5 P4 | |
1679 | #define A5 A4 | |
1680 | static const u8 IV5[]= {0xca,0xfe,0xba,0xbe,0xfa,0xce,0xdb,0xad}, | |
1681 | C5[]= {0x61,0x35,0x3b,0x4c,0x28,0x06,0x93,0x4a,0x77,0x7f,0xf5,0x1f,0xa2,0x2a,0x47,0x55, | |
1682 | 0x69,0x9b,0x2a,0x71,0x4f,0xcd,0xc6,0xf8,0x37,0x66,0xe5,0xf9,0x7b,0x6c,0x74,0x23, | |
1683 | 0x73,0x80,0x69,0x00,0xe4,0x9f,0x24,0xb2,0x2b,0x09,0x75,0x44,0xd4,0x89,0x6b,0x42, | |
1684 | 0x49,0x89,0xb5,0xe1,0xeb,0xac,0x0f,0x07,0xc2,0x3f,0x45,0x98}, | |
1685 | T5[]= {0x36,0x12,0xd2,0xe7,0x9e,0x3b,0x07,0x85,0x56,0x1b,0xe1,0x4a,0xac,0xa2,0xfc,0xcb}; | |
1686 | ||
1687 | /* Test Case 6 */ | |
1688 | #define K6 K5 | |
1689 | #define P6 P5 | |
1690 | #define A6 A5 | |
1691 | static const u8 IV6[]= {0x93,0x13,0x22,0x5d,0xf8,0x84,0x06,0xe5,0x55,0x90,0x9c,0x5a,0xff,0x52,0x69,0xaa, | |
1692 | 0x6a,0x7a,0x95,0x38,0x53,0x4f,0x7d,0xa1,0xe4,0xc3,0x03,0xd2,0xa3,0x18,0xa7,0x28, | |
1693 | 0xc3,0xc0,0xc9,0x51,0x56,0x80,0x95,0x39,0xfc,0xf0,0xe2,0x42,0x9a,0x6b,0x52,0x54, | |
1694 | 0x16,0xae,0xdb,0xf5,0xa0,0xde,0x6a,0x57,0xa6,0x37,0xb3,0x9b}, | |
1695 | C6[]= {0x8c,0xe2,0x49,0x98,0x62,0x56,0x15,0xb6,0x03,0xa0,0x33,0xac,0xa1,0x3f,0xb8,0x94, | |
1696 | 0xbe,0x91,0x12,0xa5,0xc3,0xa2,0x11,0xa8,0xba,0x26,0x2a,0x3c,0xca,0x7e,0x2c,0xa7, | |
1697 | 0x01,0xe4,0xa9,0xa4,0xfb,0xa4,0x3c,0x90,0xcc,0xdc,0xb2,0x81,0xd4,0x8c,0x7c,0x6f, | |
1698 | 0xd6,0x28,0x75,0xd2,0xac,0xa4,0x17,0x03,0x4c,0x34,0xae,0xe5}, | |
1699 | T6[]= {0x61,0x9c,0xc5,0xae,0xff,0xfe,0x0b,0xfa,0x46,0x2a,0xf4,0x3c,0x16,0x99,0xd0,0x50}; | |
1700 | ||
1701 | /* Test Case 7 */ | |
1702 | static const u8 K7[24], | |
1703 | *P7=NULL, | |
1704 | *A7=NULL, | |
1705 | IV7[12], | |
1706 | *C7=NULL, | |
1707 | T7[]= {0xcd,0x33,0xb2,0x8a,0xc7,0x73,0xf7,0x4b,0xa0,0x0e,0xd1,0xf3,0x12,0x57,0x24,0x35}; | |
1708 | ||
1709 | /* Test Case 8 */ | |
1710 | #define K8 K7 | |
1711 | #define IV8 IV7 | |
1712 | #define A8 A7 | |
1713 | static const u8 P8[16], | |
1714 | C8[]= {0x98,0xe7,0x24,0x7c,0x07,0xf0,0xfe,0x41,0x1c,0x26,0x7e,0x43,0x84,0xb0,0xf6,0x00}, | |
1715 | T8[]= {0x2f,0xf5,0x8d,0x80,0x03,0x39,0x27,0xab,0x8e,0xf4,0xd4,0x58,0x75,0x14,0xf0,0xfb}; | |
1716 | ||
1717 | /* Test Case 9 */ | |
1718 | #define A9 A8 | |
1719 | static const u8 K9[]= {0xfe,0xff,0xe9,0x92,0x86,0x65,0x73,0x1c,0x6d,0x6a,0x8f,0x94,0x67,0x30,0x83,0x08, | |
1720 | 0xfe,0xff,0xe9,0x92,0x86,0x65,0x73,0x1c}, | |
1721 | P9[]= {0xd9,0x31,0x32,0x25,0xf8,0x84,0x06,0xe5,0xa5,0x59,0x09,0xc5,0xaf,0xf5,0x26,0x9a, | |
1722 | 0x86,0xa7,0xa9,0x53,0x15,0x34,0xf7,0xda,0x2e,0x4c,0x30,0x3d,0x8a,0x31,0x8a,0x72, | |
1723 | 0x1c,0x3c,0x0c,0x95,0x95,0x68,0x09,0x53,0x2f,0xcf,0x0e,0x24,0x49,0xa6,0xb5,0x25, | |
1724 | 0xb1,0x6a,0xed,0xf5,0xaa,0x0d,0xe6,0x57,0xba,0x63,0x7b,0x39,0x1a,0xaf,0xd2,0x55}, | |
1725 | IV9[]= {0xca,0xfe,0xba,0xbe,0xfa,0xce,0xdb,0xad,0xde,0xca,0xf8,0x88}, | |
1726 | C9[]= {0x39,0x80,0xca,0x0b,0x3c,0x00,0xe8,0x41,0xeb,0x06,0xfa,0xc4,0x87,0x2a,0x27,0x57, | |
1727 | 0x85,0x9e,0x1c,0xea,0xa6,0xef,0xd9,0x84,0x62,0x85,0x93,0xb4,0x0c,0xa1,0xe1,0x9c, | |
1728 | 0x7d,0x77,0x3d,0x00,0xc1,0x44,0xc5,0x25,0xac,0x61,0x9d,0x18,0xc8,0x4a,0x3f,0x47, | |
1729 | 0x18,0xe2,0x44,0x8b,0x2f,0xe3,0x24,0xd9,0xcc,0xda,0x27,0x10,0xac,0xad,0xe2,0x56}, | |
1730 | T9[]= {0x99,0x24,0xa7,0xc8,0x58,0x73,0x36,0xbf,0xb1,0x18,0x02,0x4d,0xb8,0x67,0x4a,0x14}; | |
1731 | ||
1732 | /* Test Case 10 */ | |
1733 | #define K10 K9 | |
1734 | #define IV10 IV9 | |
1735 | static const u8 P10[]= {0xd9,0x31,0x32,0x25,0xf8,0x84,0x06,0xe5,0xa5,0x59,0x09,0xc5,0xaf,0xf5,0x26,0x9a, | |
1736 | 0x86,0xa7,0xa9,0x53,0x15,0x34,0xf7,0xda,0x2e,0x4c,0x30,0x3d,0x8a,0x31,0x8a,0x72, | |
1737 | 0x1c,0x3c,0x0c,0x95,0x95,0x68,0x09,0x53,0x2f,0xcf,0x0e,0x24,0x49,0xa6,0xb5,0x25, | |
1738 | 0xb1,0x6a,0xed,0xf5,0xaa,0x0d,0xe6,0x57,0xba,0x63,0x7b,0x39}, | |
1739 | A10[]= {0xfe,0xed,0xfa,0xce,0xde,0xad,0xbe,0xef,0xfe,0xed,0xfa,0xce,0xde,0xad,0xbe,0xef, | |
1740 | 0xab,0xad,0xda,0xd2}, | |
1741 | C10[]= {0x39,0x80,0xca,0x0b,0x3c,0x00,0xe8,0x41,0xeb,0x06,0xfa,0xc4,0x87,0x2a,0x27,0x57, | |
1742 | 0x85,0x9e,0x1c,0xea,0xa6,0xef,0xd9,0x84,0x62,0x85,0x93,0xb4,0x0c,0xa1,0xe1,0x9c, | |
1743 | 0x7d,0x77,0x3d,0x00,0xc1,0x44,0xc5,0x25,0xac,0x61,0x9d,0x18,0xc8,0x4a,0x3f,0x47, | |
1744 | 0x18,0xe2,0x44,0x8b,0x2f,0xe3,0x24,0xd9,0xcc,0xda,0x27,0x10}, | |
1745 | T10[]= {0x25,0x19,0x49,0x8e,0x80,0xf1,0x47,0x8f,0x37,0xba,0x55,0xbd,0x6d,0x27,0x61,0x8c}; | |
1746 | ||
1747 | /* Test Case 11 */ | |
1748 | #define K11 K10 | |
1749 | #define P11 P10 | |
1750 | #define A11 A10 | |
1751 | static const u8 IV11[]={0xca,0xfe,0xba,0xbe,0xfa,0xce,0xdb,0xad}, | |
1752 | C11[]= {0x0f,0x10,0xf5,0x99,0xae,0x14,0xa1,0x54,0xed,0x24,0xb3,0x6e,0x25,0x32,0x4d,0xb8, | |
1753 | 0xc5,0x66,0x63,0x2e,0xf2,0xbb,0xb3,0x4f,0x83,0x47,0x28,0x0f,0xc4,0x50,0x70,0x57, | |
1754 | 0xfd,0xdc,0x29,0xdf,0x9a,0x47,0x1f,0x75,0xc6,0x65,0x41,0xd4,0xd4,0xda,0xd1,0xc9, | |
1755 | 0xe9,0x3a,0x19,0xa5,0x8e,0x8b,0x47,0x3f,0xa0,0xf0,0x62,0xf7}, | |
1756 | T11[]= {0x65,0xdc,0xc5,0x7f,0xcf,0x62,0x3a,0x24,0x09,0x4f,0xcc,0xa4,0x0d,0x35,0x33,0xf8}; | |
1757 | ||
1758 | /* Test Case 12 */ | |
1759 | #define K12 K11 | |
1760 | #define P12 P11 | |
1761 | #define A12 A11 | |
1762 | static const u8 IV12[]={0x93,0x13,0x22,0x5d,0xf8,0x84,0x06,0xe5,0x55,0x90,0x9c,0x5a,0xff,0x52,0x69,0xaa, | |
1763 | 0x6a,0x7a,0x95,0x38,0x53,0x4f,0x7d,0xa1,0xe4,0xc3,0x03,0xd2,0xa3,0x18,0xa7,0x28, | |
1764 | 0xc3,0xc0,0xc9,0x51,0x56,0x80,0x95,0x39,0xfc,0xf0,0xe2,0x42,0x9a,0x6b,0x52,0x54, | |
1765 | 0x16,0xae,0xdb,0xf5,0xa0,0xde,0x6a,0x57,0xa6,0x37,0xb3,0x9b}, | |
1766 | C12[]= {0xd2,0x7e,0x88,0x68,0x1c,0xe3,0x24,0x3c,0x48,0x30,0x16,0x5a,0x8f,0xdc,0xf9,0xff, | |
1767 | 0x1d,0xe9,0xa1,0xd8,0xe6,0xb4,0x47,0xef,0x6e,0xf7,0xb7,0x98,0x28,0x66,0x6e,0x45, | |
1768 | 0x81,0xe7,0x90,0x12,0xaf,0x34,0xdd,0xd9,0xe2,0xf0,0x37,0x58,0x9b,0x29,0x2d,0xb3, | |
1769 | 0xe6,0x7c,0x03,0x67,0x45,0xfa,0x22,0xe7,0xe9,0xb7,0x37,0x3b}, | |
1770 | T12[]= {0xdc,0xf5,0x66,0xff,0x29,0x1c,0x25,0xbb,0xb8,0x56,0x8f,0xc3,0xd3,0x76,0xa6,0xd9}; | |
1771 | ||
1772 | /* Test Case 13 */ | |
1773 | static const u8 K13[32], | |
1774 | *P13=NULL, | |
1775 | *A13=NULL, | |
1776 | IV13[12], | |
1777 | *C13=NULL, | |
1778 | T13[]={0x53,0x0f,0x8a,0xfb,0xc7,0x45,0x36,0xb9,0xa9,0x63,0xb4,0xf1,0xc4,0xcb,0x73,0x8b}; | |
1779 | ||
1780 | /* Test Case 14 */ | |
1781 | #define K14 K13 | |
1782 | #define A14 A13 | |
1783 | static const u8 P14[16], | |
1784 | IV14[12], | |
1785 | C14[]= {0xce,0xa7,0x40,0x3d,0x4d,0x60,0x6b,0x6e,0x07,0x4e,0xc5,0xd3,0xba,0xf3,0x9d,0x18}, | |
1786 | T14[]= {0xd0,0xd1,0xc8,0xa7,0x99,0x99,0x6b,0xf0,0x26,0x5b,0x98,0xb5,0xd4,0x8a,0xb9,0x19}; | |
1787 | ||
1788 | /* Test Case 15 */ | |
1789 | #define A15 A14 | |
1790 | static const u8 K15[]= {0xfe,0xff,0xe9,0x92,0x86,0x65,0x73,0x1c,0x6d,0x6a,0x8f,0x94,0x67,0x30,0x83,0x08, | |
1791 | 0xfe,0xff,0xe9,0x92,0x86,0x65,0x73,0x1c,0x6d,0x6a,0x8f,0x94,0x67,0x30,0x83,0x08}, | |
1792 | P15[]= {0xd9,0x31,0x32,0x25,0xf8,0x84,0x06,0xe5,0xa5,0x59,0x09,0xc5,0xaf,0xf5,0x26,0x9a, | |
1793 | 0x86,0xa7,0xa9,0x53,0x15,0x34,0xf7,0xda,0x2e,0x4c,0x30,0x3d,0x8a,0x31,0x8a,0x72, | |
1794 | 0x1c,0x3c,0x0c,0x95,0x95,0x68,0x09,0x53,0x2f,0xcf,0x0e,0x24,0x49,0xa6,0xb5,0x25, | |
1795 | 0xb1,0x6a,0xed,0xf5,0xaa,0x0d,0xe6,0x57,0xba,0x63,0x7b,0x39,0x1a,0xaf,0xd2,0x55}, | |
1796 | IV15[]={0xca,0xfe,0xba,0xbe,0xfa,0xce,0xdb,0xad,0xde,0xca,0xf8,0x88}, | |
1797 | C15[]= {0x52,0x2d,0xc1,0xf0,0x99,0x56,0x7d,0x07,0xf4,0x7f,0x37,0xa3,0x2a,0x84,0x42,0x7d, | |
1798 | 0x64,0x3a,0x8c,0xdc,0xbf,0xe5,0xc0,0xc9,0x75,0x98,0xa2,0xbd,0x25,0x55,0xd1,0xaa, | |
1799 | 0x8c,0xb0,0x8e,0x48,0x59,0x0d,0xbb,0x3d,0xa7,0xb0,0x8b,0x10,0x56,0x82,0x88,0x38, | |
1800 | 0xc5,0xf6,0x1e,0x63,0x93,0xba,0x7a,0x0a,0xbc,0xc9,0xf6,0x62,0x89,0x80,0x15,0xad}, | |
1801 | T15[]= {0xb0,0x94,0xda,0xc5,0xd9,0x34,0x71,0xbd,0xec,0x1a,0x50,0x22,0x70,0xe3,0xcc,0x6c}; | |
1802 | ||
1803 | /* Test Case 16 */ | |
1804 | #define K16 K15 | |
1805 | #define IV16 IV15 | |
1806 | static const u8 P16[]= {0xd9,0x31,0x32,0x25,0xf8,0x84,0x06,0xe5,0xa5,0x59,0x09,0xc5,0xaf,0xf5,0x26,0x9a, | |
1807 | 0x86,0xa7,0xa9,0x53,0x15,0x34,0xf7,0xda,0x2e,0x4c,0x30,0x3d,0x8a,0x31,0x8a,0x72, | |
1808 | 0x1c,0x3c,0x0c,0x95,0x95,0x68,0x09,0x53,0x2f,0xcf,0x0e,0x24,0x49,0xa6,0xb5,0x25, | |
1809 | 0xb1,0x6a,0xed,0xf5,0xaa,0x0d,0xe6,0x57,0xba,0x63,0x7b,0x39}, | |
1810 | A16[]= {0xfe,0xed,0xfa,0xce,0xde,0xad,0xbe,0xef,0xfe,0xed,0xfa,0xce,0xde,0xad,0xbe,0xef, | |
1811 | 0xab,0xad,0xda,0xd2}, | |
1812 | C16[]= {0x52,0x2d,0xc1,0xf0,0x99,0x56,0x7d,0x07,0xf4,0x7f,0x37,0xa3,0x2a,0x84,0x42,0x7d, | |
1813 | 0x64,0x3a,0x8c,0xdc,0xbf,0xe5,0xc0,0xc9,0x75,0x98,0xa2,0xbd,0x25,0x55,0xd1,0xaa, | |
1814 | 0x8c,0xb0,0x8e,0x48,0x59,0x0d,0xbb,0x3d,0xa7,0xb0,0x8b,0x10,0x56,0x82,0x88,0x38, | |
1815 | 0xc5,0xf6,0x1e,0x63,0x93,0xba,0x7a,0x0a,0xbc,0xc9,0xf6,0x62}, | |
1816 | T16[]= {0x76,0xfc,0x6e,0xce,0x0f,0x4e,0x17,0x68,0xcd,0xdf,0x88,0x53,0xbb,0x2d,0x55,0x1b}; | |
1817 | ||
1818 | /* Test Case 17 */ | |
1819 | #define K17 K16 | |
1820 | #define P17 P16 | |
1821 | #define A17 A16 | |
1822 | static const u8 IV17[]={0xca,0xfe,0xba,0xbe,0xfa,0xce,0xdb,0xad}, | |
1823 | C17[]= {0xc3,0x76,0x2d,0xf1,0xca,0x78,0x7d,0x32,0xae,0x47,0xc1,0x3b,0xf1,0x98,0x44,0xcb, | |
1824 | 0xaf,0x1a,0xe1,0x4d,0x0b,0x97,0x6a,0xfa,0xc5,0x2f,0xf7,0xd7,0x9b,0xba,0x9d,0xe0, | |
1825 | 0xfe,0xb5,0x82,0xd3,0x39,0x34,0xa4,0xf0,0x95,0x4c,0xc2,0x36,0x3b,0xc7,0x3f,0x78, | |
1826 | 0x62,0xac,0x43,0x0e,0x64,0xab,0xe4,0x99,0xf4,0x7c,0x9b,0x1f}, | |
1827 | T17[]= {0x3a,0x33,0x7d,0xbf,0x46,0xa7,0x92,0xc4,0x5e,0x45,0x49,0x13,0xfe,0x2e,0xa8,0xf2}; | |
1828 | ||
1829 | /* Test Case 18 */ | |
1830 | #define K18 K17 | |
1831 | #define P18 P17 | |
1832 | #define A18 A17 | |
1833 | static const u8 IV18[]={0x93,0x13,0x22,0x5d,0xf8,0x84,0x06,0xe5,0x55,0x90,0x9c,0x5a,0xff,0x52,0x69,0xaa, | |
1834 | 0x6a,0x7a,0x95,0x38,0x53,0x4f,0x7d,0xa1,0xe4,0xc3,0x03,0xd2,0xa3,0x18,0xa7,0x28, | |
1835 | 0xc3,0xc0,0xc9,0x51,0x56,0x80,0x95,0x39,0xfc,0xf0,0xe2,0x42,0x9a,0x6b,0x52,0x54, | |
1836 | 0x16,0xae,0xdb,0xf5,0xa0,0xde,0x6a,0x57,0xa6,0x37,0xb3,0x9b}, | |
1837 | C18[]= {0x5a,0x8d,0xef,0x2f,0x0c,0x9e,0x53,0xf1,0xf7,0x5d,0x78,0x53,0x65,0x9e,0x2a,0x20, | |
1838 | 0xee,0xb2,0xb2,0x2a,0xaf,0xde,0x64,0x19,0xa0,0x58,0xab,0x4f,0x6f,0x74,0x6b,0xf4, | |
1839 | 0x0f,0xc0,0xc3,0xb7,0x80,0xf2,0x44,0x45,0x2d,0xa3,0xeb,0xf1,0xc5,0xd8,0x2c,0xde, | |
1840 | 0xa2,0x41,0x89,0x97,0x20,0x0e,0xf8,0x2e,0x44,0xae,0x7e,0x3f}, | |
1841 | T18[]= {0xa4,0x4a,0x82,0x66,0xee,0x1c,0x8e,0xb0,0xc8,0xb5,0xd4,0xcf,0x5a,0xe9,0xf1,0x9a}; | |
1842 | ||
0ba304dd AP |
1843 | /* Test Case 19 */ |
1844 | #define K19 K1 | |
1845 | #define P19 P1 | |
1846 | #define IV19 IV1 | |
1847 | #define C19 C1 | |
1848 | static const u8 A19[]= {0xd9,0x31,0x32,0x25,0xf8,0x84,0x06,0xe5,0xa5,0x59,0x09,0xc5,0xaf,0xf5,0x26,0x9a, | |
1849 | 0x86,0xa7,0xa9,0x53,0x15,0x34,0xf7,0xda,0x2e,0x4c,0x30,0x3d,0x8a,0x31,0x8a,0x72, | |
1850 | 0x1c,0x3c,0x0c,0x95,0x95,0x68,0x09,0x53,0x2f,0xcf,0x0e,0x24,0x49,0xa6,0xb5,0x25, | |
1851 | 0xb1,0x6a,0xed,0xf5,0xaa,0x0d,0xe6,0x57,0xba,0x63,0x7b,0x39,0x1a,0xaf,0xd2,0x55, | |
1852 | 0x52,0x2d,0xc1,0xf0,0x99,0x56,0x7d,0x07,0xf4,0x7f,0x37,0xa3,0x2a,0x84,0x42,0x7d, | |
1853 | 0x64,0x3a,0x8c,0xdc,0xbf,0xe5,0xc0,0xc9,0x75,0x98,0xa2,0xbd,0x25,0x55,0xd1,0xaa, | |
1854 | 0x8c,0xb0,0x8e,0x48,0x59,0x0d,0xbb,0x3d,0xa7,0xb0,0x8b,0x10,0x56,0x82,0x88,0x38, | |
1855 | 0xc5,0xf6,0x1e,0x63,0x93,0xba,0x7a,0x0a,0xbc,0xc9,0xf6,0x62,0x89,0x80,0x15,0xad}, | |
1856 | T19[]= {0x5f,0xea,0x79,0x3a,0x2d,0x6f,0x97,0x4d,0x37,0xe6,0x8e,0x0c,0xb8,0xff,0x94,0x92}; | |
1857 | ||
1858 | /* Test Case 20 */ | |
1859 | #define K20 K1 | |
1860 | #define A20 A1 | |
1861 | static const u8 IV20[64]={0xff,0xff,0xff,0xff}, /* this results in 0xff in counter LSB */ | |
1862 | P20[288], | |
1863 | C20[]= {0x56,0xb3,0x37,0x3c,0xa9,0xef,0x6e,0x4a,0x2b,0x64,0xfe,0x1e,0x9a,0x17,0xb6,0x14, | |
1864 | 0x25,0xf1,0x0d,0x47,0xa7,0x5a,0x5f,0xce,0x13,0xef,0xc6,0xbc,0x78,0x4a,0xf2,0x4f, | |
1865 | 0x41,0x41,0xbd,0xd4,0x8c,0xf7,0xc7,0x70,0x88,0x7a,0xfd,0x57,0x3c,0xca,0x54,0x18, | |
1866 | 0xa9,0xae,0xff,0xcd,0x7c,0x5c,0xed,0xdf,0xc6,0xa7,0x83,0x97,0xb9,0xa8,0x5b,0x49, | |
1867 | 0x9d,0xa5,0x58,0x25,0x72,0x67,0xca,0xab,0x2a,0xd0,0xb2,0x3c,0xa4,0x76,0xa5,0x3c, | |
1868 | 0xb1,0x7f,0xb4,0x1c,0x4b,0x8b,0x47,0x5c,0xb4,0xf3,0xf7,0x16,0x50,0x94,0xc2,0x29, | |
1869 | 0xc9,0xe8,0xc4,0xdc,0x0a,0x2a,0x5f,0xf1,0x90,0x3e,0x50,0x15,0x11,0x22,0x13,0x76, | |
1870 | 0xa1,0xcd,0xb8,0x36,0x4c,0x50,0x61,0xa2,0x0c,0xae,0x74,0xbc,0x4a,0xcd,0x76,0xce, | |
1871 | 0xb0,0xab,0xc9,0xfd,0x32,0x17,0xef,0x9f,0x8c,0x90,0xbe,0x40,0x2d,0xdf,0x6d,0x86, | |
1872 | 0x97,0xf4,0xf8,0x80,0xdf,0xf1,0x5b,0xfb,0x7a,0x6b,0x28,0x24,0x1e,0xc8,0xfe,0x18, | |
1873 | 0x3c,0x2d,0x59,0xe3,0xf9,0xdf,0xff,0x65,0x3c,0x71,0x26,0xf0,0xac,0xb9,0xe6,0x42, | |
1874 | 0x11,0xf4,0x2b,0xae,0x12,0xaf,0x46,0x2b,0x10,0x70,0xbe,0xf1,0xab,0x5e,0x36,0x06, | |
1875 | 0x87,0x2c,0xa1,0x0d,0xee,0x15,0xb3,0x24,0x9b,0x1a,0x1b,0x95,0x8f,0x23,0x13,0x4c, | |
1876 | 0x4b,0xcc,0xb7,0xd0,0x32,0x00,0xbc,0xe4,0x20,0xa2,0xf8,0xeb,0x66,0xdc,0xf3,0x64, | |
1877 | 0x4d,0x14,0x23,0xc1,0xb5,0x69,0x90,0x03,0xc1,0x3e,0xce,0xf4,0xbf,0x38,0xa3,0xb6, | |
1878 | 0x0e,0xed,0xc3,0x40,0x33,0xba,0xc1,0x90,0x27,0x83,0xdc,0x6d,0x89,0xe2,0xe7,0x74, | |
1879 | 0x18,0x8a,0x43,0x9c,0x7e,0xbc,0xc0,0x67,0x2d,0xbd,0xa4,0xdd,0xcf,0xb2,0x79,0x46, | |
1880 | 0x13,0xb0,0xbe,0x41,0x31,0x5e,0xf7,0x78,0x70,0x8a,0x70,0xee,0x7d,0x75,0x16,0x5c}, | |
1881 | T20[]= {0x8b,0x30,0x7f,0x6b,0x33,0x28,0x6d,0x0a,0xb0,0x26,0xa9,0xed,0x3f,0xe1,0xe8,0x5f}; | |
1882 | ||
61cdb9f3 DSH |
1883 | #define TEST_CASE(n) do { \ |
1884 | u8 out[sizeof(P##n)]; \ | |
1885 | AES_set_encrypt_key(K##n,sizeof(K##n)*8,&key); \ | |
1886 | CRYPTO_gcm128_init(&ctx,&key,(block128_f)AES_encrypt); \ | |
1887 | CRYPTO_gcm128_setiv(&ctx,IV##n,sizeof(IV##n)); \ | |
1888 | memset(out,0,sizeof(out)); \ | |
1889 | if (A##n) CRYPTO_gcm128_aad(&ctx,A##n,sizeof(A##n)); \ | |
1890 | if (P##n) CRYPTO_gcm128_encrypt(&ctx,P##n,out,sizeof(out)); \ | |
1891 | if (CRYPTO_gcm128_finish(&ctx,T##n,16) || \ | |
1892 | (C##n && memcmp(out,C##n,sizeof(out)))) \ | |
1893 | ret++, printf ("encrypt test#%d failed.\n",n); \ | |
1894 | CRYPTO_gcm128_setiv(&ctx,IV##n,sizeof(IV##n)); \ | |
1895 | memset(out,0,sizeof(out)); \ | |
1896 | if (A##n) CRYPTO_gcm128_aad(&ctx,A##n,sizeof(A##n)); \ | |
1897 | if (C##n) CRYPTO_gcm128_decrypt(&ctx,C##n,out,sizeof(out)); \ | |
1898 | if (CRYPTO_gcm128_finish(&ctx,T##n,16) || \ | |
1899 | (P##n && memcmp(out,P##n,sizeof(out)))) \ | |
1900 | ret++, printf ("decrypt test#%d failed.\n",n); \ | |
1901 | } while(0) | |
1902 | ||
1903 | int main() | |
1904 | { | |
1905 | GCM128_CONTEXT ctx; | |
1906 | AES_KEY key; | |
1907 | int ret=0; | |
1908 | ||
1909 | TEST_CASE(1); | |
1910 | TEST_CASE(2); | |
1911 | TEST_CASE(3); | |
1912 | TEST_CASE(4); | |
1913 | TEST_CASE(5); | |
1914 | TEST_CASE(6); | |
1915 | TEST_CASE(7); | |
1916 | TEST_CASE(8); | |
1917 | TEST_CASE(9); | |
1918 | TEST_CASE(10); | |
1919 | TEST_CASE(11); | |
1920 | TEST_CASE(12); | |
1921 | TEST_CASE(13); | |
1922 | TEST_CASE(14); | |
1923 | TEST_CASE(15); | |
1924 | TEST_CASE(16); | |
1925 | TEST_CASE(17); | |
1926 | TEST_CASE(18); | |
0ba304dd AP |
1927 | TEST_CASE(19); |
1928 | TEST_CASE(20); | |
61cdb9f3 DSH |
1929 | |
1930 | #ifdef OPENSSL_CPUID_OBJ | |
1931 | { | |
1932 | size_t start,stop,gcm_t,ctr_t,OPENSSL_rdtsc(); | |
1933 | union { u64 u; u8 c[1024]; } buf; | |
1934 | int i; | |
1935 | ||
1936 | AES_set_encrypt_key(K1,sizeof(K1)*8,&key); | |
1937 | CRYPTO_gcm128_init(&ctx,&key,(block128_f)AES_encrypt); | |
1938 | CRYPTO_gcm128_setiv(&ctx,IV1,sizeof(IV1)); | |
1939 | ||
1940 | CRYPTO_gcm128_encrypt(&ctx,buf.c,buf.c,sizeof(buf)); | |
1941 | start = OPENSSL_rdtsc(); | |
1942 | CRYPTO_gcm128_encrypt(&ctx,buf.c,buf.c,sizeof(buf)); | |
1943 | gcm_t = OPENSSL_rdtsc() - start; | |
1944 | ||
1945 | CRYPTO_ctr128_encrypt(buf.c,buf.c,sizeof(buf), | |
1946 | &key,ctx.Yi.c,ctx.EKi.c,&ctx.mres, | |
1947 | (block128_f)AES_encrypt); | |
1948 | start = OPENSSL_rdtsc(); | |
1949 | CRYPTO_ctr128_encrypt(buf.c,buf.c,sizeof(buf), | |
1950 | &key,ctx.Yi.c,ctx.EKi.c,&ctx.mres, | |
1951 | (block128_f)AES_encrypt); | |
1952 | ctr_t = OPENSSL_rdtsc() - start; | |
1953 | ||
1954 | printf("%.2f-%.2f=%.2f\n", | |
1955 | gcm_t/(double)sizeof(buf), | |
1956 | ctr_t/(double)sizeof(buf), | |
1957 | (gcm_t-ctr_t)/(double)sizeof(buf)); | |
1958 | #ifdef GHASH | |
0ba304dd AP |
1959 | { |
1960 | void (*gcm_ghash_p)(u64 Xi[2],const u128 Htable[16], | |
1961 | const u8 *inp,size_t len) = ctx.ghash; | |
1962 | ||
1963 | GHASH((&ctx),buf.c,sizeof(buf)); | |
61cdb9f3 | 1964 | start = OPENSSL_rdtsc(); |
0ba304dd | 1965 | for (i=0;i<100;++i) GHASH((&ctx),buf.c,sizeof(buf)); |
61cdb9f3 DSH |
1966 | gcm_t = OPENSSL_rdtsc() - start; |
1967 | printf("%.2f\n",gcm_t/(double)sizeof(buf)/(double)i); | |
0ba304dd | 1968 | } |
61cdb9f3 DSH |
1969 | #endif |
1970 | } | |
1971 | #endif | |
1972 | ||
1973 | return ret; | |
1974 | } | |
1975 | #endif |