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	sha512-256.c - sbase - suckless unix tools
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	---
	sha512-256.c (617B)
	---
	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 }