md5.c File Reference

MD5 (Message-Digest Algorithm) More...

#include "core/crypto.h"
#include "hash/md5.h"

Go to the source code of this file.

Macros

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL
 
#define F(x, y, z)   (((x) & (y)) | (~(x) & (z)))
 
#define G(x, y, z)   (((x) & (z)) | ((y) & ~(z)))
 
#define H(x, y, z)   ((x) ^ (y) ^ (z))
 
#define I(x, y, z)   ((y) ^ ((x) | ~(z)))
 
#define FF(a, b, c, d, x, s, k)   a += F(b, c, d) + (x) + (k), a = ROL32(a, s) + (b)
 
#define GG(a, b, c, d, x, s, k)   a += G(b, c, d) + (x) + (k), a = ROL32(a, s) + (b)
 
#define HH(a, b, c, d, x, s, k)   a += H(b, c, d) + (x) + (k), a = ROL32(a, s) + (b)
 
#define II(a, b, c, d, x, s, k)   a += I(b, c, d) + (x) + (k), a = ROL32(a, s) + (b)
 

Functions

error_t md5Compute (const void *data, size_t length, uint8_t *digest)
 Digest a message using MD5. More...
 
void md5Init (Md5Context *context)
 Initialize MD5 message digest context. More...
 
void md5Update (Md5Context *context, const void *data, size_t length)
 Update the MD5 context with a portion of the message being hashed. More...
 
void md5Final (Md5Context *context, uint8_t *digest)
 Finish the MD5 message digest. More...
 
void md5ProcessBlock (Md5Context *context)
 Process message in 16-word blocks. More...
 

Variables

const uint8_t md5Oid [8] = {0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x02, 0x05}
 
const HashAlgo md5HashAlgo
 

Detailed Description

MD5 (Message-Digest Algorithm)

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

The MD5 algorithm takes as input a message of arbitrary length and produces as output a 128-bit message digest of the input. Refer to RFC 1321

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

Definition in file md5.c.

Macro Definition Documentation

◆ F

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

Definition at line 45 of file md5.c.

◆ FF

#define FF (   a,
  b,
  c,
  d,
  x,
  s,
 
)    a += F(b, c, d) + (x) + (k), a = ROL32(a, s) + (b)

Definition at line 50 of file md5.c.

◆ G

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

Definition at line 46 of file md5.c.

◆ GG

#define GG (   a,
  b,
  c,
  d,
  x,
  s,
 
)    a += G(b, c, d) + (x) + (k), a = ROL32(a, s) + (b)

Definition at line 51 of file md5.c.

◆ H

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

Definition at line 47 of file md5.c.

◆ HH

#define HH (   a,
  b,
  c,
  d,
  x,
  s,
 
)    a += H(b, c, d) + (x) + (k), a = ROL32(a, s) + (b)

Definition at line 52 of file md5.c.

◆ I

#define I (   x,
  y,
  z 
)    ((y) ^ ((x) | ~(z)))

Definition at line 48 of file md5.c.

◆ II

#define II (   a,
  b,
  c,
  d,
  x,
  s,
 
)    a += I(b, c, d) + (x) + (k), a = ROL32(a, s) + (b)

Definition at line 53 of file md5.c.

◆ TRACE_LEVEL

#define TRACE_LEVEL   CRYPTO_TRACE_LEVEL

Definition at line 35 of file md5.c.

Function Documentation

◆ md5Compute()

error_t md5Compute ( const void *  data,
size_t  length,
uint8_t *  digest 
)

Digest a message using MD5.

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 104 of file md5.c.

◆ md5Final()

void md5Final ( Md5Context context,
uint8_t *  digest 
)

Finish the MD5 message digest.

Parameters
[in]contextPointer to the MD5 context
[out]digestCalculated digest (optional parameter)

Definition at line 192 of file md5.c.

◆ md5Init()

void md5Init ( Md5Context context)

Initialize MD5 message digest context.

Parameters
[in]contextPointer to the MD5 context to initialize

Definition at line 131 of file md5.c.

◆ md5ProcessBlock()

void md5ProcessBlock ( Md5Context context)

Process message in 16-word blocks.

Parameters
[in]contextPointer to the MD5 context

Definition at line 232 of file md5.c.

◆ md5Update()

void md5Update ( Md5Context context,
const void *  data,
size_t  length 
)

Update the MD5 context with a portion of the message being hashed.

Parameters
[in]contextPointer to the MD5 context
[in]dataPointer to the buffer being hashed
[in]lengthLength of the buffer

Definition at line 153 of file md5.c.

Variable Documentation

◆ md5HashAlgo

const HashAlgo md5HashAlgo
Initial value:
=
{
"MD5",
sizeof(md5Oid),
sizeof(Md5Context),
}
error_t md5Compute(const void *data, size_t length, uint8_t *digest)
Digest a message using MD5.
Definition: md5.c:104
error_t(* HashAlgoCompute)(const void *data, size_t length, uint8_t *digest)
Definition: crypto.h:1020
void md5Final(Md5Context *context, uint8_t *digest)
Finish the MD5 message digest.
Definition: md5.c:192
void(* HashAlgoInit)(void *context)
Definition: crypto.h:1021
const uint8_t md5Oid[8]
Definition: md5.c:78
MD5 algorithm context.
Definition: md5.h:54
#define MD5_BLOCK_SIZE
Definition: md5.h:36
void(* HashAlgoUpdate)(void *context, const void *data, size_t length)
Definition: crypto.h:1022
void md5Init(Md5Context *context)
Initialize MD5 message digest context.
Definition: md5.c:131
#define MD5_DIGEST_SIZE
Definition: md5.h:38
void(* HashAlgoFinal)(void *context, uint8_t *digest)
Definition: crypto.h:1023
void md5Update(Md5Context *context, const void *data, size_t length)
Update the MD5 context with a portion of the message being hashed.
Definition: md5.c:153

Definition at line 81 of file md5.c.

◆ md5Oid

const uint8_t md5Oid[8] = {0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x02, 0x05}

Definition at line 78 of file md5.c.