2  * Copyright 2016-2024 The OpenSSL Project Authors. All Rights Reserved.
29     {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15 } ,
30     { 14, 10,  4,  8,  9, 15, 13,  6,  1, 12,  0,  2, 11,  7,  5,  3 } ,
31     { 11,  8, 12,  0,  5,  2, 15, 13, 10, 14,  3,  6,  7,  1,  9,  4 } ,
32     {  7,  9,  3,  1, 13, 12, 11, 14,  2,  6,  5, 10,  4,  0, 15,  8 } ,
33     {  9,  0,  5,  7,  2,  4, 10, 15, 14,  1, 11, 12,  6,  8,  3, 13 } ,
34     {  2, 12,  6, 10,  0, 11,  8,  3,  4, 13,  7,  5, 15, 14,  1,  9 } ,
35     { 12,  5,  1, 15, 14, 13,  4, 10,  0,  7,  6,  3,  9,  2,  8, 11 } ,
36     { 13, 11,  7, 14, 12,  1,  3,  9,  5,  0, 15,  4,  8,  6,  2, 10 } ,
37     {  6, 15, 14,  9, 11,  3,  0,  8, 12,  2, 13,  7,  1,  4, 10,  5 } ,
38     { 10,  2,  8,  4,  7,  6,  1,  5, 15, 11,  9, 14,  3, 12, 13 , 0 } ,
44     S->f[0] = -1;  in blake2s_set_lastblock()
54         S->h[i] = blake2s_IV[i];  in blake2s_init0()
65     S->outlen = P->digest_length;  in blake2s_init_param()
72         S->h[i] ^= load32(&p[i*4]);  in blake2s_init_param()
78     P->digest_length = BLAKE2S_DIGEST_LENGTH;  in ossl_blake2s_param_init()
79     P->key_length    = 0;  in ossl_blake2s_param_init()
80     P->fanout        = 1;  in ossl_blake2s_param_init()
81     P->depth         = 1;  in ossl_blake2s_param_init()
82     store32(P->leaf_length, 0);  in ossl_blake2s_param_init()
83     store48(P->node_offset, 0);  in ossl_blake2s_param_init()
84     P->node_depth    = 0;  in ossl_blake2s_param_init()
85     P->inner_length  = 0;  in ossl_blake2s_param_init()
86     memset(P->salt,     0, sizeof(P->salt));  in ossl_blake2s_param_init()
87     memset(P->personal, 0, sizeof(P->personal));  in ossl_blake2s_param_init()
92     P->digest_length = outlen;  in ossl_blake2s_param_set_digest_length()
97     P->key_length = keylen;  in ossl_blake2s_param_set_key_length()
103     memcpy(P->personal, personal, len);  in ossl_blake2s_param_set_personal()
104     memset(P->personal + len, 0, BLAKE2S_PERSONALBYTES - len);  in ossl_blake2s_param_set_personal()
110     memcpy(P->salt, salt, len);  in ossl_blake2s_param_set_salt()
111     memset(P->salt + len, 0, BLAKE2S_SALTBYTES - len);}  in ossl_blake2s_param_set_salt()
136         memcpy(block, key, P->key_length);  in ossl_blake2s_init_key()
150     uint32_t v[16];  in blake2s_compress()  local
176         v[i] = S->h[i];  in blake2s_compress()
185         S->t[0] += increment;  in blake2s_compress()
186         S->t[1] += (S->t[0] < increment);  in blake2s_compress()
188         v[ 8] = blake2s_IV[0];  in blake2s_compress()
189         v[ 9] = blake2s_IV[1];  in blake2s_compress()
190         v[10] = blake2s_IV[2];  in blake2s_compress()
191         v[11] = blake2s_IV[3];  in blake2s_compress()
192         v[12] = S->t[0] ^ blake2s_IV[4];  in blake2s_compress()
193         v[13] = S->t[1] ^ blake2s_IV[5];  in blake2s_compress()
194         v[14] = S->f[0] ^ blake2s_IV[6];  in blake2s_compress()
195         v[15] = S->f[1] ^ blake2s_IV[7];  in blake2s_compress()
201             b = rotr32(b ^ c, 12); \  in blake2s_compress()
209             G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \  in blake2s_compress()
210             G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \  in blake2s_compress()
211             G(r,2,v[ 2],v[ 6],v[10],v[14]); \  in blake2s_compress()
212             G(r,3,v[ 3],v[ 7],v[11],v[15]); \  in blake2s_compress()
213             G(r,4,v[ 0],v[ 5],v[10],v[15]); \  in blake2s_compress()
214             G(r,5,v[ 1],v[ 6],v[11],v[12]); \  in blake2s_compress()
215             G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \  in blake2s_compress()
216             G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \  in blake2s_compress()
237             S->h[i] = v[i] ^= v[i + 8] ^ S->h[i];  in blake2s_compress()
242         len -= increment;  in blake2s_compress()
253      * Intuitively one would expect intermediate buffer, c->buf, to  in ossl_blake2s_update()
260     fill = sizeof(c->buf) - c->buflen;  in ossl_blake2s_update()
262         if (c->buflen) {  in ossl_blake2s_update()
263             memcpy(c->buf + c->buflen, in, fill); /* Fill buffer */  in ossl_blake2s_update()
264             blake2s_compress(c, c->buf, BLAKE2S_BLOCKBYTES);  in ossl_blake2s_update()
265             c->buflen = 0;  in ossl_blake2s_update()
267             datalen -= fill;  in ossl_blake2s_update()
276             datalen -= stashlen;  in ossl_blake2s_update()
285     memcpy(c->buf + c->buflen, in, datalen);  in ossl_blake2s_update()
286     c->buflen += datalen; /* Be lazy, do not compress */  in ossl_blake2s_update()
299     int iter = (c->outlen + 3) / 4;  in ossl_blake2s_final()
303     if ((c->outlen % sizeof(c->h[0])) == 0)  in ossl_blake2s_final()
308     memset(c->buf + c->buflen, 0, sizeof(c->buf) - c->buflen);  in ossl_blake2s_final()
309     blake2s_compress(c, c->buf, c->buflen);  in ossl_blake2s_final()
313         store32(target + sizeof(c->h[i]) * i, c->h[i]);  in ossl_blake2s_final()
316         memcpy(md, target, c->outlen);  in ossl_blake2s_final()