1*de0e0e4dSAntonio Huete Jimenez /* $OpenBSD: sha256.c,v 1.11 2021/11/09 18:40:21 bcook Exp $ */
2f5b1c8a1SJohn Marino /* ====================================================================
3f5b1c8a1SJohn Marino * Copyright (c) 2004 The OpenSSL Project. All rights reserved
4f5b1c8a1SJohn Marino * according to the OpenSSL license [found in ../../LICENSE].
5f5b1c8a1SJohn Marino * ====================================================================
6f5b1c8a1SJohn Marino */
7f5b1c8a1SJohn Marino
8f5b1c8a1SJohn Marino #include <openssl/opensslconf.h>
9f5b1c8a1SJohn Marino
10f5b1c8a1SJohn Marino #if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA256)
11f5b1c8a1SJohn Marino
12*de0e0e4dSAntonio Huete Jimenez #include <endian.h>
13f5b1c8a1SJohn Marino #include <stdlib.h>
14f5b1c8a1SJohn Marino #include <string.h>
15f5b1c8a1SJohn Marino
16f5b1c8a1SJohn Marino #include <openssl/crypto.h>
17f5b1c8a1SJohn Marino #include <openssl/sha.h>
18f5b1c8a1SJohn Marino #include <openssl/opensslv.h>
19f5b1c8a1SJohn Marino
SHA224_Init(SHA256_CTX * c)20f5b1c8a1SJohn Marino int SHA224_Init(SHA256_CTX *c)
21f5b1c8a1SJohn Marino {
22f5b1c8a1SJohn Marino memset (c,0,sizeof(*c));
23f5b1c8a1SJohn Marino c->h[0]=0xc1059ed8UL; c->h[1]=0x367cd507UL;
24f5b1c8a1SJohn Marino c->h[2]=0x3070dd17UL; c->h[3]=0xf70e5939UL;
25f5b1c8a1SJohn Marino c->h[4]=0xffc00b31UL; c->h[5]=0x68581511UL;
26f5b1c8a1SJohn Marino c->h[6]=0x64f98fa7UL; c->h[7]=0xbefa4fa4UL;
27f5b1c8a1SJohn Marino c->md_len=SHA224_DIGEST_LENGTH;
28f5b1c8a1SJohn Marino return 1;
29f5b1c8a1SJohn Marino }
30f5b1c8a1SJohn Marino
SHA256_Init(SHA256_CTX * c)31f5b1c8a1SJohn Marino int SHA256_Init(SHA256_CTX *c)
32f5b1c8a1SJohn Marino {
33f5b1c8a1SJohn Marino memset (c,0,sizeof(*c));
34f5b1c8a1SJohn Marino c->h[0]=0x6a09e667UL; c->h[1]=0xbb67ae85UL;
35f5b1c8a1SJohn Marino c->h[2]=0x3c6ef372UL; c->h[3]=0xa54ff53aUL;
36f5b1c8a1SJohn Marino c->h[4]=0x510e527fUL; c->h[5]=0x9b05688cUL;
37f5b1c8a1SJohn Marino c->h[6]=0x1f83d9abUL; c->h[7]=0x5be0cd19UL;
38f5b1c8a1SJohn Marino c->md_len=SHA256_DIGEST_LENGTH;
39f5b1c8a1SJohn Marino return 1;
40f5b1c8a1SJohn Marino }
41f5b1c8a1SJohn Marino
SHA224(const unsigned char * d,size_t n,unsigned char * md)42f5b1c8a1SJohn Marino unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md)
43f5b1c8a1SJohn Marino {
44f5b1c8a1SJohn Marino SHA256_CTX c;
45f5b1c8a1SJohn Marino static unsigned char m[SHA224_DIGEST_LENGTH];
46f5b1c8a1SJohn Marino
47f5b1c8a1SJohn Marino if (md == NULL) md=m;
48f5b1c8a1SJohn Marino SHA224_Init(&c);
49f5b1c8a1SJohn Marino SHA256_Update(&c,d,n);
50f5b1c8a1SJohn Marino SHA256_Final(md,&c);
51f5b1c8a1SJohn Marino explicit_bzero(&c,sizeof(c));
52f5b1c8a1SJohn Marino return(md);
53f5b1c8a1SJohn Marino }
54f5b1c8a1SJohn Marino
SHA256(const unsigned char * d,size_t n,unsigned char * md)55f5b1c8a1SJohn Marino unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md)
56f5b1c8a1SJohn Marino {
57f5b1c8a1SJohn Marino SHA256_CTX c;
58f5b1c8a1SJohn Marino static unsigned char m[SHA256_DIGEST_LENGTH];
59f5b1c8a1SJohn Marino
60f5b1c8a1SJohn Marino if (md == NULL) md=m;
61f5b1c8a1SJohn Marino SHA256_Init(&c);
62f5b1c8a1SJohn Marino SHA256_Update(&c,d,n);
63f5b1c8a1SJohn Marino SHA256_Final(md,&c);
64f5b1c8a1SJohn Marino explicit_bzero(&c,sizeof(c));
65f5b1c8a1SJohn Marino return(md);
66f5b1c8a1SJohn Marino }
67f5b1c8a1SJohn Marino
SHA224_Update(SHA256_CTX * c,const void * data,size_t len)68f5b1c8a1SJohn Marino int SHA224_Update(SHA256_CTX *c, const void *data, size_t len)
69f5b1c8a1SJohn Marino { return SHA256_Update (c,data,len); }
SHA224_Final(unsigned char * md,SHA256_CTX * c)70f5b1c8a1SJohn Marino int SHA224_Final (unsigned char *md, SHA256_CTX *c)
71f5b1c8a1SJohn Marino { return SHA256_Final (md,c); }
72f5b1c8a1SJohn Marino
73f5b1c8a1SJohn Marino #define DATA_ORDER_IS_BIG_ENDIAN
74f5b1c8a1SJohn Marino
75f5b1c8a1SJohn Marino #define HASH_LONG SHA_LONG
76f5b1c8a1SJohn Marino #define HASH_CTX SHA256_CTX
77f5b1c8a1SJohn Marino #define HASH_CBLOCK SHA_CBLOCK
78f5b1c8a1SJohn Marino /*
79f5b1c8a1SJohn Marino * Note that FIPS180-2 discusses "Truncation of the Hash Function Output."
80f5b1c8a1SJohn Marino * default: case below covers for it. It's not clear however if it's
81f5b1c8a1SJohn Marino * permitted to truncate to amount of bytes not divisible by 4. I bet not,
82f5b1c8a1SJohn Marino * but if it is, then default: case shall be extended. For reference.
8372c33676SMaxim Ag * Idea behind separate cases for pre-defined lengths is to let the
84f5b1c8a1SJohn Marino * compiler decide if it's appropriate to unroll small loops.
85f5b1c8a1SJohn Marino */
86f5b1c8a1SJohn Marino #define HASH_MAKE_STRING(c,s) do { \
87f5b1c8a1SJohn Marino unsigned long ll; \
88f5b1c8a1SJohn Marino unsigned int nn; \
89f5b1c8a1SJohn Marino switch ((c)->md_len) \
90f5b1c8a1SJohn Marino { case SHA224_DIGEST_LENGTH: \
91f5b1c8a1SJohn Marino for (nn=0;nn<SHA224_DIGEST_LENGTH/4;nn++) \
92f5b1c8a1SJohn Marino { ll=(c)->h[nn]; HOST_l2c(ll,(s)); } \
93f5b1c8a1SJohn Marino break; \
94f5b1c8a1SJohn Marino case SHA256_DIGEST_LENGTH: \
95f5b1c8a1SJohn Marino for (nn=0;nn<SHA256_DIGEST_LENGTH/4;nn++) \
96f5b1c8a1SJohn Marino { ll=(c)->h[nn]; HOST_l2c(ll,(s)); } \
97f5b1c8a1SJohn Marino break; \
98f5b1c8a1SJohn Marino default: \
99f5b1c8a1SJohn Marino if ((c)->md_len > SHA256_DIGEST_LENGTH) \
100f5b1c8a1SJohn Marino return 0; \
101f5b1c8a1SJohn Marino for (nn=0;nn<(c)->md_len/4;nn++) \
102f5b1c8a1SJohn Marino { ll=(c)->h[nn]; HOST_l2c(ll,(s)); } \
103f5b1c8a1SJohn Marino break; \
104f5b1c8a1SJohn Marino } \
105f5b1c8a1SJohn Marino } while (0)
106f5b1c8a1SJohn Marino
107f5b1c8a1SJohn Marino #define HASH_UPDATE SHA256_Update
108f5b1c8a1SJohn Marino #define HASH_TRANSFORM SHA256_Transform
109f5b1c8a1SJohn Marino #define HASH_FINAL SHA256_Final
110f5b1c8a1SJohn Marino #define HASH_BLOCK_DATA_ORDER sha256_block_data_order
111f5b1c8a1SJohn Marino #ifndef SHA256_ASM
112f5b1c8a1SJohn Marino static
113f5b1c8a1SJohn Marino #endif
114f5b1c8a1SJohn Marino void sha256_block_data_order (SHA256_CTX *ctx, const void *in, size_t num);
115f5b1c8a1SJohn Marino
116f5b1c8a1SJohn Marino #include "md32_common.h"
117f5b1c8a1SJohn Marino
118f5b1c8a1SJohn Marino #ifndef SHA256_ASM
119f5b1c8a1SJohn Marino static const SHA_LONG K256[64] = {
120f5b1c8a1SJohn Marino 0x428a2f98UL,0x71374491UL,0xb5c0fbcfUL,0xe9b5dba5UL,
121f5b1c8a1SJohn Marino 0x3956c25bUL,0x59f111f1UL,0x923f82a4UL,0xab1c5ed5UL,
122f5b1c8a1SJohn Marino 0xd807aa98UL,0x12835b01UL,0x243185beUL,0x550c7dc3UL,
123f5b1c8a1SJohn Marino 0x72be5d74UL,0x80deb1feUL,0x9bdc06a7UL,0xc19bf174UL,
124f5b1c8a1SJohn Marino 0xe49b69c1UL,0xefbe4786UL,0x0fc19dc6UL,0x240ca1ccUL,
125f5b1c8a1SJohn Marino 0x2de92c6fUL,0x4a7484aaUL,0x5cb0a9dcUL,0x76f988daUL,
126f5b1c8a1SJohn Marino 0x983e5152UL,0xa831c66dUL,0xb00327c8UL,0xbf597fc7UL,
127f5b1c8a1SJohn Marino 0xc6e00bf3UL,0xd5a79147UL,0x06ca6351UL,0x14292967UL,
128f5b1c8a1SJohn Marino 0x27b70a85UL,0x2e1b2138UL,0x4d2c6dfcUL,0x53380d13UL,
129f5b1c8a1SJohn Marino 0x650a7354UL,0x766a0abbUL,0x81c2c92eUL,0x92722c85UL,
130f5b1c8a1SJohn Marino 0xa2bfe8a1UL,0xa81a664bUL,0xc24b8b70UL,0xc76c51a3UL,
131f5b1c8a1SJohn Marino 0xd192e819UL,0xd6990624UL,0xf40e3585UL,0x106aa070UL,
132f5b1c8a1SJohn Marino 0x19a4c116UL,0x1e376c08UL,0x2748774cUL,0x34b0bcb5UL,
133f5b1c8a1SJohn Marino 0x391c0cb3UL,0x4ed8aa4aUL,0x5b9cca4fUL,0x682e6ff3UL,
134f5b1c8a1SJohn Marino 0x748f82eeUL,0x78a5636fUL,0x84c87814UL,0x8cc70208UL,
135f5b1c8a1SJohn Marino 0x90befffaUL,0xa4506cebUL,0xbef9a3f7UL,0xc67178f2UL };
136f5b1c8a1SJohn Marino
137f5b1c8a1SJohn Marino /*
138f5b1c8a1SJohn Marino * FIPS specification refers to right rotations, while our ROTATE macro
139f5b1c8a1SJohn Marino * is left one. This is why you might notice that rotation coefficients
140f5b1c8a1SJohn Marino * differ from those observed in FIPS document by 32-N...
141f5b1c8a1SJohn Marino */
142f5b1c8a1SJohn Marino #define Sigma0(x) (ROTATE((x),30) ^ ROTATE((x),19) ^ ROTATE((x),10))
143f5b1c8a1SJohn Marino #define Sigma1(x) (ROTATE((x),26) ^ ROTATE((x),21) ^ ROTATE((x),7))
144f5b1c8a1SJohn Marino #define sigma0(x) (ROTATE((x),25) ^ ROTATE((x),14) ^ ((x)>>3))
145f5b1c8a1SJohn Marino #define sigma1(x) (ROTATE((x),15) ^ ROTATE((x),13) ^ ((x)>>10))
146f5b1c8a1SJohn Marino
147f5b1c8a1SJohn Marino #define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
148f5b1c8a1SJohn Marino #define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
149f5b1c8a1SJohn Marino
150f5b1c8a1SJohn Marino #ifdef OPENSSL_SMALL_FOOTPRINT
151f5b1c8a1SJohn Marino
sha256_block_data_order(SHA256_CTX * ctx,const void * in,size_t num)152f5b1c8a1SJohn Marino static void sha256_block_data_order (SHA256_CTX *ctx, const void *in, size_t num)
153f5b1c8a1SJohn Marino {
154f5b1c8a1SJohn Marino unsigned MD32_REG_T a,b,c,d,e,f,g,h,s0,s1,T1,T2;
155f5b1c8a1SJohn Marino SHA_LONG X[16],l;
156f5b1c8a1SJohn Marino int i;
157f5b1c8a1SJohn Marino const unsigned char *data=in;
158f5b1c8a1SJohn Marino
159f5b1c8a1SJohn Marino while (num--) {
160f5b1c8a1SJohn Marino
161f5b1c8a1SJohn Marino a = ctx->h[0]; b = ctx->h[1]; c = ctx->h[2]; d = ctx->h[3];
162f5b1c8a1SJohn Marino e = ctx->h[4]; f = ctx->h[5]; g = ctx->h[6]; h = ctx->h[7];
163f5b1c8a1SJohn Marino
164f5b1c8a1SJohn Marino for (i=0;i<16;i++)
165f5b1c8a1SJohn Marino {
166f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[i] = l;
167f5b1c8a1SJohn Marino T1 += h + Sigma1(e) + Ch(e,f,g) + K256[i];
168f5b1c8a1SJohn Marino T2 = Sigma0(a) + Maj(a,b,c);
169f5b1c8a1SJohn Marino h = g; g = f; f = e; e = d + T1;
170f5b1c8a1SJohn Marino d = c; c = b; b = a; a = T1 + T2;
171f5b1c8a1SJohn Marino }
172f5b1c8a1SJohn Marino
173f5b1c8a1SJohn Marino for (;i<64;i++)
174f5b1c8a1SJohn Marino {
175f5b1c8a1SJohn Marino s0 = X[(i+1)&0x0f]; s0 = sigma0(s0);
176f5b1c8a1SJohn Marino s1 = X[(i+14)&0x0f]; s1 = sigma1(s1);
177f5b1c8a1SJohn Marino
178f5b1c8a1SJohn Marino T1 = X[i&0xf] += s0 + s1 + X[(i+9)&0xf];
179f5b1c8a1SJohn Marino T1 += h + Sigma1(e) + Ch(e,f,g) + K256[i];
180f5b1c8a1SJohn Marino T2 = Sigma0(a) + Maj(a,b,c);
181f5b1c8a1SJohn Marino h = g; g = f; f = e; e = d + T1;
182f5b1c8a1SJohn Marino d = c; c = b; b = a; a = T1 + T2;
183f5b1c8a1SJohn Marino }
184f5b1c8a1SJohn Marino
185f5b1c8a1SJohn Marino ctx->h[0] += a; ctx->h[1] += b; ctx->h[2] += c; ctx->h[3] += d;
186f5b1c8a1SJohn Marino ctx->h[4] += e; ctx->h[5] += f; ctx->h[6] += g; ctx->h[7] += h;
187f5b1c8a1SJohn Marino
188f5b1c8a1SJohn Marino }
189f5b1c8a1SJohn Marino }
190f5b1c8a1SJohn Marino
191f5b1c8a1SJohn Marino #else
192f5b1c8a1SJohn Marino
193f5b1c8a1SJohn Marino #define ROUND_00_15(i,a,b,c,d,e,f,g,h) do { \
194f5b1c8a1SJohn Marino T1 += h + Sigma1(e) + Ch(e,f,g) + K256[i]; \
195f5b1c8a1SJohn Marino h = Sigma0(a) + Maj(a,b,c); \
196f5b1c8a1SJohn Marino d += T1; h += T1; } while (0)
197f5b1c8a1SJohn Marino
198f5b1c8a1SJohn Marino #define ROUND_16_63(i,a,b,c,d,e,f,g,h,X) do { \
199f5b1c8a1SJohn Marino s0 = X[(i+1)&0x0f]; s0 = sigma0(s0); \
200f5b1c8a1SJohn Marino s1 = X[(i+14)&0x0f]; s1 = sigma1(s1); \
201f5b1c8a1SJohn Marino T1 = X[(i)&0x0f] += s0 + s1 + X[(i+9)&0x0f]; \
202f5b1c8a1SJohn Marino ROUND_00_15(i,a,b,c,d,e,f,g,h); } while (0)
203f5b1c8a1SJohn Marino
sha256_block_data_order(SHA256_CTX * ctx,const void * in,size_t num)204f5b1c8a1SJohn Marino static void sha256_block_data_order (SHA256_CTX *ctx, const void *in, size_t num)
205f5b1c8a1SJohn Marino {
206f5b1c8a1SJohn Marino unsigned MD32_REG_T a,b,c,d,e,f,g,h,s0,s1,T1;
207f5b1c8a1SJohn Marino SHA_LONG X[16];
208f5b1c8a1SJohn Marino int i;
209f5b1c8a1SJohn Marino const unsigned char *data=in;
210f5b1c8a1SJohn Marino
211f5b1c8a1SJohn Marino while (num--) {
212f5b1c8a1SJohn Marino
213f5b1c8a1SJohn Marino a = ctx->h[0]; b = ctx->h[1]; c = ctx->h[2]; d = ctx->h[3];
214f5b1c8a1SJohn Marino e = ctx->h[4]; f = ctx->h[5]; g = ctx->h[6]; h = ctx->h[7];
215f5b1c8a1SJohn Marino
216f5b1c8a1SJohn Marino if (BYTE_ORDER != LITTLE_ENDIAN &&
217f5b1c8a1SJohn Marino sizeof(SHA_LONG)==4 && ((size_t)in%4)==0)
218f5b1c8a1SJohn Marino {
219f5b1c8a1SJohn Marino const SHA_LONG *W=(const SHA_LONG *)data;
220f5b1c8a1SJohn Marino
221f5b1c8a1SJohn Marino T1 = X[0] = W[0]; ROUND_00_15(0,a,b,c,d,e,f,g,h);
222f5b1c8a1SJohn Marino T1 = X[1] = W[1]; ROUND_00_15(1,h,a,b,c,d,e,f,g);
223f5b1c8a1SJohn Marino T1 = X[2] = W[2]; ROUND_00_15(2,g,h,a,b,c,d,e,f);
224f5b1c8a1SJohn Marino T1 = X[3] = W[3]; ROUND_00_15(3,f,g,h,a,b,c,d,e);
225f5b1c8a1SJohn Marino T1 = X[4] = W[4]; ROUND_00_15(4,e,f,g,h,a,b,c,d);
226f5b1c8a1SJohn Marino T1 = X[5] = W[5]; ROUND_00_15(5,d,e,f,g,h,a,b,c);
227f5b1c8a1SJohn Marino T1 = X[6] = W[6]; ROUND_00_15(6,c,d,e,f,g,h,a,b);
228f5b1c8a1SJohn Marino T1 = X[7] = W[7]; ROUND_00_15(7,b,c,d,e,f,g,h,a);
229f5b1c8a1SJohn Marino T1 = X[8] = W[8]; ROUND_00_15(8,a,b,c,d,e,f,g,h);
230f5b1c8a1SJohn Marino T1 = X[9] = W[9]; ROUND_00_15(9,h,a,b,c,d,e,f,g);
231f5b1c8a1SJohn Marino T1 = X[10] = W[10]; ROUND_00_15(10,g,h,a,b,c,d,e,f);
232f5b1c8a1SJohn Marino T1 = X[11] = W[11]; ROUND_00_15(11,f,g,h,a,b,c,d,e);
233f5b1c8a1SJohn Marino T1 = X[12] = W[12]; ROUND_00_15(12,e,f,g,h,a,b,c,d);
234f5b1c8a1SJohn Marino T1 = X[13] = W[13]; ROUND_00_15(13,d,e,f,g,h,a,b,c);
235f5b1c8a1SJohn Marino T1 = X[14] = W[14]; ROUND_00_15(14,c,d,e,f,g,h,a,b);
236f5b1c8a1SJohn Marino T1 = X[15] = W[15]; ROUND_00_15(15,b,c,d,e,f,g,h,a);
237f5b1c8a1SJohn Marino
238f5b1c8a1SJohn Marino data += SHA256_CBLOCK;
239f5b1c8a1SJohn Marino }
240f5b1c8a1SJohn Marino else
241f5b1c8a1SJohn Marino {
242f5b1c8a1SJohn Marino SHA_LONG l;
243f5b1c8a1SJohn Marino
244f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[0] = l; ROUND_00_15(0,a,b,c,d,e,f,g,h);
245f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[1] = l; ROUND_00_15(1,h,a,b,c,d,e,f,g);
246f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[2] = l; ROUND_00_15(2,g,h,a,b,c,d,e,f);
247f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[3] = l; ROUND_00_15(3,f,g,h,a,b,c,d,e);
248f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[4] = l; ROUND_00_15(4,e,f,g,h,a,b,c,d);
249f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[5] = l; ROUND_00_15(5,d,e,f,g,h,a,b,c);
250f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[6] = l; ROUND_00_15(6,c,d,e,f,g,h,a,b);
251f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[7] = l; ROUND_00_15(7,b,c,d,e,f,g,h,a);
252f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[8] = l; ROUND_00_15(8,a,b,c,d,e,f,g,h);
253f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[9] = l; ROUND_00_15(9,h,a,b,c,d,e,f,g);
254f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[10] = l; ROUND_00_15(10,g,h,a,b,c,d,e,f);
255f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[11] = l; ROUND_00_15(11,f,g,h,a,b,c,d,e);
256f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[12] = l; ROUND_00_15(12,e,f,g,h,a,b,c,d);
257f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[13] = l; ROUND_00_15(13,d,e,f,g,h,a,b,c);
258f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[14] = l; ROUND_00_15(14,c,d,e,f,g,h,a,b);
259f5b1c8a1SJohn Marino HOST_c2l(data,l); T1 = X[15] = l; ROUND_00_15(15,b,c,d,e,f,g,h,a);
260f5b1c8a1SJohn Marino }
261f5b1c8a1SJohn Marino
262f5b1c8a1SJohn Marino for (i=16;i<64;i+=8)
263f5b1c8a1SJohn Marino {
264f5b1c8a1SJohn Marino ROUND_16_63(i+0,a,b,c,d,e,f,g,h,X);
265f5b1c8a1SJohn Marino ROUND_16_63(i+1,h,a,b,c,d,e,f,g,X);
266f5b1c8a1SJohn Marino ROUND_16_63(i+2,g,h,a,b,c,d,e,f,X);
267f5b1c8a1SJohn Marino ROUND_16_63(i+3,f,g,h,a,b,c,d,e,X);
268f5b1c8a1SJohn Marino ROUND_16_63(i+4,e,f,g,h,a,b,c,d,X);
269f5b1c8a1SJohn Marino ROUND_16_63(i+5,d,e,f,g,h,a,b,c,X);
270f5b1c8a1SJohn Marino ROUND_16_63(i+6,c,d,e,f,g,h,a,b,X);
271f5b1c8a1SJohn Marino ROUND_16_63(i+7,b,c,d,e,f,g,h,a,X);
272f5b1c8a1SJohn Marino }
273f5b1c8a1SJohn Marino
274f5b1c8a1SJohn Marino ctx->h[0] += a; ctx->h[1] += b; ctx->h[2] += c; ctx->h[3] += d;
275f5b1c8a1SJohn Marino ctx->h[4] += e; ctx->h[5] += f; ctx->h[6] += g; ctx->h[7] += h;
276f5b1c8a1SJohn Marino
277f5b1c8a1SJohn Marino }
278f5b1c8a1SJohn Marino }
279f5b1c8a1SJohn Marino
280f5b1c8a1SJohn Marino #endif
281f5b1c8a1SJohn Marino #endif /* SHA256_ASM */
282f5b1c8a1SJohn Marino
283f5b1c8a1SJohn Marino #endif /* OPENSSL_NO_SHA256 */
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