sha1.c File Reference

SHA-1 (Secure Hash Algorithm 1) More...

#include "core/crypto.h"
#include "hash/sha1.h"

Go to the source code of this file.

Macros

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL
 
#define W(t)   w[(t) & 0x0F]
 
#define CH(x, y, z)   (((x) & (y)) | (~(x) & (z)))
 
#define PARITY(x, y, z)   ((x) ^ (y) ^ (z))
 
#define MAJ(x, y, z)   (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
 

Functions

error_t sha1Compute (const void *data, size_t length, uint8_t *digest)
 Digest a message using SHA-1. More...
 
void sha1Init (Sha1Context *context)
 Initialize SHA-1 message digest context. More...
 
void sha1Update (Sha1Context *context, const void *data, size_t length)
 Update the SHA-1 context with a portion of the message being hashed. More...
 
void sha1Final (Sha1Context *context, uint8_t *digest)
 Finish the SHA-1 message digest. More...
 
void sha1ProcessBlock (Sha1Context *context)
 Process message in 16-word blocks. More...
 

Variables

const uint8_t sha1Oid [5] = {0x2B, 0x0E, 0x03, 0x02, 0x1A}
 
const HashAlgo sha1HashAlgo
 

Detailed Description

SHA-1 (Secure Hash Algorithm 1)

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

SHA-1 is a secure hash algorithm for computing a condensed representation of an electronic message. Refer to FIPS 180-4 for more details

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

Definition in file sha1.c.

Macro Definition Documentation

◆ CH

#define CH (   x,
  y,
  z 
)    (((x) & (y)) | (~(x) & (z)))

Definition at line 48 of file sha1.c.

◆ MAJ

#define MAJ (   x,
  y,
  z 
)    (((x) & (y)) | ((x) & (z)) | ((y) & (z)))

Definition at line 50 of file sha1.c.

◆ PARITY

#define PARITY (   x,
  y,
  z 
)    ((x) ^ (y) ^ (z))

Definition at line 49 of file sha1.c.

◆ TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 35 of file sha1.c.

◆ W

#define W (   t)    w[(t) & 0x0F]

Definition at line 45 of file sha1.c.

Function Documentation

◆ sha1Compute()

error_t sha1Compute ( const void *  data,
size_t  length,
uint8_t *  digest 
)

Digest a message using SHA-1.

Parameters
[in]dataPointer to the message being hashed
[in]lengthLength of the message
[out]digestPointer to the calculated digest
Returns
Error code

Definition at line 97 of file sha1.c.

◆ sha1Final()

void sha1Final ( Sha1Context context,
uint8_t *  digest 
)

Finish the SHA-1 message digest.

Parameters
[in]contextPointer to the SHA-1 context
[out]digestCalculated digest (optional parameter)

Definition at line 186 of file sha1.c.

◆ sha1Init()

void sha1Init ( Sha1Context context)

Initialize SHA-1 message digest context.

Parameters
[in]contextPointer to the SHA-1 context to initialize

Definition at line 124 of file sha1.c.

◆ sha1ProcessBlock()

void sha1ProcessBlock ( Sha1Context context)

Process message in 16-word blocks.

Parameters
[in]contextPointer to the SHA-1 context

Definition at line 226 of file sha1.c.

◆ sha1Update()

void sha1Update ( Sha1Context context,
const void *  data,
size_t  length 
)

Update the SHA-1 context with a portion of the message being hashed.

Parameters
[in]contextPointer to the SHA-1 context
[in]dataPointer to the buffer being hashed
[in]lengthLength of the buffer

Definition at line 147 of file sha1.c.

Variable Documentation

◆ sha1HashAlgo

const HashAlgo sha1HashAlgo
Initial value:
=
{
"SHA-1",
sizeof(sha1Oid),
sizeof(Sha1Context),
}
void sha1Init(Sha1Context *context)
Initialize SHA-1 message digest context.
Definition: sha1.c:124
error_t(* HashAlgoCompute)(const void *data, size_t length, uint8_t *digest)
Definition: crypto.h:1020
SHA-1 algorithm context.
Definition: sha1.h:54
#define SHA1_DIGEST_SIZE
Definition: sha1.h:38
error_t sha1Compute(const void *data, size_t length, uint8_t *digest)
Digest a message using SHA-1.
Definition: sha1.c:97
void(* HashAlgoInit)(void *context)
Definition: crypto.h:1021
void(* HashAlgoUpdate)(void *context, const void *data, size_t length)
Definition: crypto.h:1022
void sha1Final(Sha1Context *context, uint8_t *digest)
Finish the SHA-1 message digest.
Definition: sha1.c:186
const uint8_t sha1Oid[5]
Definition: sha1.c:71
#define SHA1_BLOCK_SIZE
Definition: sha1.h:36
void sha1Update(Sha1Context *context, const void *data, size_t length)
Update the SHA-1 context with a portion of the message being hashed.
Definition: sha1.c:147
void(* HashAlgoFinal)(void *context, uint8_t *digest)
Definition: crypto.h:1023

Definition at line 74 of file sha1.c.

◆ sha1Oid

const uint8_t sha1Oid[5] = {0x2B, 0x0E, 0x03, 0x02, 0x1A}

Definition at line 71 of file sha1.c.