sha224.c - sbase - suckless unix tools
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       sha224.c (505B)
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            1 /* public domain sha224 implementation based on fips180-3 */
            2 #include <stdint.h>
            3 #include "../sha224.h"
            4 
            5 extern void sha256_sum_n(void *, uint8_t *, int n);
            6 
            7 void
            8 sha224_init(void *ctx)
            9 {
           10         struct sha224 *s = ctx;
           11         s->len = 0;
           12         s->h[0] = 0xc1059ed8;
           13         s->h[1] = 0x367cd507;
           14         s->h[2] = 0x3070dd17;
           15         s->h[3] = 0xf70e5939;
           16         s->h[4] = 0xffc00b31;
           17         s->h[5] = 0x68581511;
           18         s->h[6] = 0x64f98fa7;
           19         s->h[7] = 0xbefa4fa4;
           20 }
           21 
           22 void
           23 sha224_sum(void *ctx, uint8_t md[SHA224_DIGEST_LENGTH])
           24 {
           25         sha256_sum_n(ctx, md, 7);
           26 }