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/**
* @file decaf/shake.h
* @copyright Public domain.
* @author Mike Hamburg
* @brief SHA2-512
*/
#ifndef __DECAF_SHA512_H__
#define __DECAF_SHA512_H__
#include <stdint.h>
#include <sys/types.h>
#include <stdlib.h> /* for NULL */
#include <decaf/common.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct decaf_sha512_ctx_s {
uint64_t state[8];
uint8_t block[128];
uint64_t bytes_processed;
} decaf_sha512_ctx_s, decaf_sha512_ctx_t[1];
void decaf_sha512_init(decaf_sha512_ctx_t ctx) DECAF_NONNULL DECAF_API_VIS;
void decaf_sha512_update(decaf_sha512_ctx_t ctx, const uint8_t *message, size_t length) DECAF_NONNULL DECAF_API_VIS;
void decaf_sha512_final(decaf_sha512_ctx_t ctx, uint8_t *out, size_t length) DECAF_NONNULL DECAF_API_VIS;
static inline void decaf_sha512_destroy(decaf_sha512_ctx_t ctx) {
decaf_bzero(ctx,sizeof(*ctx));
}
static inline void decaf_sha512_hash(
uint8_t *output,
size_t output_len,
const uint8_t *message,
size_t message_len
) {
decaf_sha512_ctx_t ctx;
decaf_sha512_init(ctx);
decaf_sha512_update(ctx,message,message_len);
decaf_sha512_final(ctx,output,output_len);
decaf_sha512_destroy(ctx);
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __DECAF_SHA512_H__ */
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