ed25519/include/sha512.h

#ifndef SHA512_H
#define SHA512_H

#ifdef USE_OPENSSL
	#include <openssl/sha.h>

	typedef SHA512_CTX sha512_context;
#else
	#include <stddef.h>

	#include "fixedint.h"

	/* state */
	typedef struct sha512_context_ {
		uint64_t  length, state[8];
		size_t curlen;
		unsigned char buf[128];
	} sha512_context;
#endif
int _ed_sha512_init(sha512_context * md);
int _ed_sha512_final(sha512_context * md, unsigned char *out);
int _ed_sha512_update(sha512_context * md, const unsigned char *in, size_t inlen);
int _ed_sha512(const unsigned char *message, size_t message_len, unsigned char *out);
#endif