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#ifndef _FR_SHA1_H
#define _FR_SHA1_H
#ifdef WITH_OPENSSL_SHA1
#include <openssl/sha.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef SHA1_DIGEST_LENGTH
# define SHA1_DIGEST_LENGTH 20
#endif
#ifndef WITH_OPENSSL_SHA1
typedef struct {
uint32_t state[5];
uint32_t count[2];
uint8_t buffer[64];
} fr_sha1_ctx;
void fr_sha1_transform(uint32_t state[5], uint8_t const buffer[64]);
void fr_sha1_init(fr_sha1_ctx *context);
void fr_sha1_update(fr_sha1_ctx *context, uint8_t const *data, size_t len);
void fr_sha1_final(uint8_t digest[20], fr_sha1_ctx *context);
/*
* this version implements a raw SHA1 transform, no length is appended,
* nor any 128s out to the block size.
*/
void fr_sha1_final_no_len(uint8_t digest[20], fr_sha1_ctx* context);
#else /* WITH_OPENSSL_SHA1 */
USES_APPLE_DEPRECATED_API
#define fr_sha1_ctx SHA_CTX
#define fr_sha1_init SHA1_Init
#define fr_sha1_update SHA1_Update
#define fr_sha1_final SHA1_Final
#define fr_sha1_transform SHA1_Transform
#endif
/*
* FIPS 186-2 PRF based upon SHA1.
*/
void fips186_2prf(uint8_t mk[20], uint8_t finalkey[160]);
/* hmacsha1.c */
void fr_hmac_sha1(uint8_t digest[SHA1_DIGEST_LENGTH], uint8_t const *text, size_t text_len,
uint8_t const *key, size_t key_len);
#ifdef __cplusplus
}
#endif
#endif /* _FR_SHA1_H */
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