/*      $NetBSD: sha1.h,v 1.16 2023/08/01 07:04:16 mrg Exp $    */

/*
 * SHA-1 in C
 * By Steve Reid <steve@edmweb.com>
 * 100% Public Domain
 */

#ifndef _SYS_SHA1_H_
#define _SYS_SHA1_H_

#include <sys/cdefs.h>
#include <sys/types.h>

#define SHA1_DIGEST_LENGTH              20
#define SHA1_DIGEST_STRING_LENGTH       41
#define SHA1_BLOCK_LENGTH               64

typedef struct {
        uint32_t state[5];
        uint32_t count[2];
        uint8_t buffer[SHA1_BLOCK_LENGTH];
} SHA1_CTX;

__BEGIN_DECLS
void    SHA1Transform(uint32_t[5], const uint8_t[64]);
void    SHA1Init(SHA1_CTX *);
void    SHA1Update(SHA1_CTX *, const uint8_t *, unsigned int);
void    SHA1Final(uint8_t[SHA1_DIGEST_LENGTH], SHA1_CTX *);
#ifndef _KERNEL
char    *SHA1End(SHA1_CTX *, char[SHA1_DIGEST_STRING_LENGTH]);
char    *SHA1FileChunk(const char *, char *, off_t, off_t);
char    *SHA1File(const char *, char *);
char    *SHA1Data(const uint8_t *, size_t, char[SHA1_DIGEST_STRING_LENGTH]);
#endif /* _KERNEL */
__END_DECLS

#endif /* _SYS_SHA1_H_ */