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/*
BLAKE2 reference source code package - reference C implementations
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
your option. The terms of these licenses can be found at:
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
- OpenSSL license : https://www.openssl.org/source/license.html
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
More information about the BLAKE2 hash function can be found at
https://blake2.net.
*/
/* Adapted for VeraCrypt */
#ifndef BLAKE2_H
#define BLAKE2_H
#include "Common/Tcdefs.h"
#if defined(_MSC_VER)
#ifdef TC_WINDOWS_BOOT
#define BLAKE2_PACKED(x) x
#else
#define BLAKE2_PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop))
#endif
#else
#define BLAKE2_PACKED(x) x __attribute__((packed))
#endif
#if defined(__cplusplus)
extern "C" {
#endif
enum blake2s_constant
{
BLAKE2S_BLOCKBYTES = 64,
BLAKE2S_OUTBYTES = 32,
BLAKE2S_KEYBYTES = 32,
BLAKE2S_SALTBYTES = 8,
BLAKE2S_PERSONALBYTES = 8
};
typedef struct blake2s_state__
{
uint32 h[8];
uint32 t[2];
uint32 f[2];
uint8 buf[BLAKE2S_BLOCKBYTES];
size_t buflen;
size_t outlen;
uint8 last_node;
} blake2s_state;
#ifdef TC_WINDOWS_BOOT
#pragma pack(1)
#endif
BLAKE2_PACKED(struct blake2s_param__
{
uint8 digest_length; /* 1 */
uint8 key_length; /* 2 */
uint8 fanout; /* 3 */
uint8 depth; /* 4 */
uint32 leaf_length; /* 8 */
uint32 node_offset; /* 12 */
uint16 xof_length; /* 14 */
uint8 node_depth; /* 15 */
uint8 inner_length; /* 16 */
/* uint8 reserved[0]; */
uint8 salt[BLAKE2S_SALTBYTES]; /* 24 */
uint8 personal[BLAKE2S_PERSONALBYTES]; /* 32 */
});
#ifdef TC_WINDOWS_BOOT
#pragma pack()
#endif
typedef struct blake2s_param__ blake2s_param;
/* Padded structs result in a compile-time error */
enum {
BLAKE2_DUMMY_1 = 1/(int)(sizeof(blake2s_param) == BLAKE2S_OUTBYTES)
};
/* Streaming API */
void blake2s_init( blake2s_state *S );
void blake2s_init_param( blake2s_state *S, const blake2s_param *P );
void blake2s_update( blake2s_state *S, const void *in, size_t inlen );
int blake2s_final( blake2s_state *S, unsigned char *out );
/* Simple API */
int blake2s( void *out, const void *in, size_t inlen );
#if defined(__cplusplus)
}
#endif
#endif
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