sha512-256.c - sbase - suckless unix tools
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       sha512-256.c (617B)
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            1 /* public domain sha512/256 implementation based on fips180-3 */
            2 #include <stdint.h>
            3 #include "../sha512-256.h"
            4 
            5 extern void sha512_sum_n(void *, uint8_t *, int n);
            6 
            7 void
            8 sha512_256_init(void *ctx)
            9 {
           10         struct sha512_256 *s = ctx;
           11         s->len = 0;
           12         s->h[0] = 0x22312194fc2bf72cULL;
           13         s->h[1] = 0x9f555fa3c84c64c2ULL;
           14         s->h[2] = 0x2393b86b6f53b151ULL;
           15         s->h[3] = 0x963877195940eabdULL;
           16         s->h[4] = 0x96283ee2a88effe3ULL;
           17         s->h[5] = 0xbe5e1e2553863992ULL;
           18         s->h[6] = 0x2b0199fc2c85b8aaULL;
           19         s->h[7] = 0x0eb72ddc81c52ca2ULL;
           20 }
           21 
           22 void
           23 sha512_256_sum(void *ctx, uint8_t md[SHA512_256_DIGEST_LENGTH])
           24 {
           25         sha512_sum_n(ctx, md, 4);
           26 }