smhasher/sha1.h

/* public api for steve reid's public domain SHA-1 implementation */
/* this file is in the public domain */

#pragma once

#include "Platform.h"

struct SHA1_CTX {
  uint32_t state[5];
  uint32_t count[2];
  uint8_t buffer[64];
};

#define SHA1_DIGEST_SIZE 20

void SHA1_Init(SHA1_CTX *context);
void SHA1_Update(SHA1_CTX *context, const uint8_t *data, const size_t len);
void SHA1_Final(SHA1_CTX *context, uint8_t digest[SHA1_DIGEST_SIZE]);

void sha1_32a(const void *key, int len, uint32_t seed, void *out);