pqc/common/sha2.h
2019-07-30 13:23:22 -04:00

49 lines
1.6 KiB
C

#ifndef SHA2_H
#define SHA2_H
#include <stddef.h>
#include <stdint.h>
/* The incremental API allows hashing of individual input blocks; these blocks
must be exactly 64 bytes each.
Use the 'finalize' functions for any remaining bytes (possibly over 64). */
typedef struct {
uint8_t ctx[40];
} sha224ctx;
typedef struct {
uint8_t ctx[40];
} sha256ctx;
typedef struct {
uint8_t ctx[72];
} sha384ctx;
typedef struct {
uint8_t ctx[72];
} sha512ctx;
void sha224_inc_init(sha224ctx *state);
void sha224_inc_blocks(sha224ctx *state, const uint8_t *in, size_t inblocks);
void sha224_inc_finalize(uint8_t *out, sha224ctx *state, const uint8_t *in, size_t inlen);
void sha224(uint8_t *out, const uint8_t *in, size_t inlen);
void sha256_inc_init(sha256ctx *state);
void sha256_inc_clone_state(sha256ctx *stateout, const sha256ctx *statein);
void sha256_inc_blocks(sha256ctx *state, const uint8_t *in, size_t inblocks);
void sha256_inc_finalize(uint8_t *out, sha256ctx *state, const uint8_t *in, size_t inlen);
void sha256(uint8_t *out, const uint8_t *in, size_t inlen);
void sha384_inc_init(sha384ctx *state);
void sha384_inc_blocks(sha384ctx *state, const uint8_t *in, size_t inblocks);
void sha384_inc_finalize(uint8_t *out, sha384ctx *state, const uint8_t *in, size_t inlen);
void sha384(uint8_t *out, const uint8_t *in, size_t inlen);
void sha512_inc_init(sha512ctx *state);
void sha512_inc_blocks(sha512ctx *state, const uint8_t *in, size_t inblocks);
void sha512_inc_finalize(uint8_t *out, sha512ctx *state, const uint8_t *in, size_t inlen);
void sha512(uint8_t *out, const uint8_t *in, size_t inlen);
#endif