blake2s.c File Reference

BLAKE2 cryptographic hash and MAC (BLAKE2s variant) More...

#include "core/crypto.h"
#include "hash/blake2s.h"

Go to the source code of this file.

Macros

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL
 
#define G(a, b, c, d, x, y)
 

Functions

error_t blake2sCompute (const void *key, size_t keyLen, const void *data, size_t dataLen, uint8_t *digest, size_t digestLen)
 Digest a message using BLAKE2s. More...
 
error_t blake2sInit (Blake2sContext *context, const void *key, size_t keyLen, size_t digestLen)
 Initialize BLAKE2s message digest context. More...
 
void blake2sUpdate (Blake2sContext *context, const void *data, size_t length)
 Update the BLAKE2s context with a portion of the message being hashed. More...
 
void blake2sFinal (Blake2sContext *context, uint8_t *digest)
 Finish the BLAKE2s message digest. More...
 
void blake2sProcessBlock (Blake2sContext *context, bool_t last)
 Compression function F. More...
 

Detailed Description

BLAKE2 cryptographic hash and MAC (BLAKE2s variant)

License

Copyright (C) 2010-2018 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneCrypto Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Description

BLAKE2s is cryptographic hash function optimized for 8- to 32-bit platforms that produces digests of any size between 1 and 32 bytes. Refer to RFC 7693 for more details

Author
Oryx Embedded SARL (www.oryx-embedded.com)
Version
1.9.0

Definition in file blake2s.c.

Macro Definition Documentation

◆ G

#define G (   a,
  b,
  c,
  d,
  x,
 
)
Value:
{ \
a += b + x; \
d ^= a; \
d = ROR32(d, 16); \
c += d; \
b ^= c; \
b = ROR32(b, 12); \
a += b + y; \
d ^= a; \
d = ROR32(d, 8); \
c += d; \
b ^= c; \
b = ROR32(b, 7); \
}
uint8_t c
Definition: ndp.h:510
#define ROR32(a, n)
Definition: crypto.h:855
uint8_t a
Definition: ndp.h:407
uint8_t b[6]
Definition: dtls_misc.h:130

Definition at line 46 of file blake2s.c.

◆ TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 36 of file blake2s.c.

Function Documentation

◆ blake2sCompute()

error_t blake2sCompute ( const void *  key,
size_t  keyLen,
const void *  data,
size_t  dataLen,
uint8_t *  digest,
size_t  digestLen 
)

Digest a message using BLAKE2s.

Parameters
[in]keyPointer to the key
[in]keyLenLength of the key
[in]dataPointer to the message being hashed
[in]dataLenLength of the message
[out]digestPointer to the calculated digest
[in]digestLenExpected length of the digest
Returns
Error code

Definition at line 96 of file blake2s.c.

◆ blake2sFinal()

void blake2sFinal ( Blake2sContext context,
uint8_t *  digest 
)

Finish the BLAKE2s message digest.

Parameters
[in]contextPointer to the BLAKE2s context
[out]digestCalculated digest (optional parameter)

Definition at line 241 of file blake2s.c.

◆ blake2sInit()

error_t blake2sInit ( Blake2sContext context,
const void *  key,
size_t  keyLen,
size_t  digestLen 
)

Initialize BLAKE2s message digest context.

Parameters
[in]contextPointer to the BLAKE2s context to initialize
[in]keyPointer to the key
[in]keyLenLength of the key
[in]digestLenExpected length of the digest
Returns
Error code

Definition at line 143 of file blake2s.c.

◆ blake2sProcessBlock()

void blake2sProcessBlock ( Blake2sContext context,
bool_t  last 
)

Compression function F.

Parameters
[in]contextPointer to the BLAKE2s context
[in]lastFlag indicating the last block

Definition at line 274 of file blake2s.c.

◆ blake2sUpdate()

void blake2sUpdate ( Blake2sContext context,
const void *  data,
size_t  length 
)

Update the BLAKE2s context with a portion of the message being hashed.

Parameters
[in]contextPointer to the BLAKE2s context
[in]dataPointer to the buffer being hashed
[in]lengthLength of the buffer

Definition at line 203 of file blake2s.c.