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	sha512-224.c - sbase - suckless unix tools
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	---
	sha512-224.c (700B)
	---
	1 /* public domain sha512/224 implementation based on fips180-3 */
	2 #include <stdint.h>
	3 #include <string.h>
	4 #include "../sha512-224.h"
	5
	6 extern void sha512_sum_n(void , uint8_t , int n);
	7
	8 void
	9 sha512_224_init(void *ctx)
	10 {
	11 struct sha512_224 *s = ctx;
	12 s->len = 0;
	13 s->h[0] = 0x8c3d37c819544da2ULL;
	14 s->h[1] = 0x73e1996689dcd4d6ULL;
	15 s->h[2] = 0x1dfab7ae32ff9c82ULL;
	16 s->h[3] = 0x679dd514582f9fcfULL;
	17 s->h[4] = 0x0f6d2b697bd44da8ULL;
	18 s->h[5] = 0x77e36f7304c48942ULL;
	19 s->h[6] = 0x3f9d85a86a1d36c8ULL;
	20 s->h[7] = 0x1112e6ad91d692a1ULL;
	21 }
	22
	23 void
	24 sha512_224_sum(void *ctx, uint8_t md[SHA512_224_DIGEST_LENGTH])
	25 {
	26 uint8_t buf[32];
	27 sha512_sum_n(ctx, buf, 4);
	28 memcpy(md, buf, SHA512_224_DIGEST_LENGTH);
	29 }