md2.h File Reference

MD2 (Message-Digest Algorithm) More...

#include "core/crypto.h"

Go to the source code of this file.

Data Structures

struct  Md2Context
 MD2 algorithm context. More...


#define MD2_BLOCK_SIZE   16
#define MD2_DIGEST_SIZE   16
#define MD2_MIN_PAD_SIZE   1
#define MD2_OID   md2Oid
#define MD2_HASH_ALGO   (&md2HashAlgo)


error_t md2Compute (const void *data, size_t length, uint8_t *digest)
 Digest a message using MD2. More...
void md2Init (Md2Context *context)
 Initialize MD2 message digest context. More...
void md2Update (Md2Context *context, const void *data, size_t length)
 Update the MD2 context with a portion of the message being hashed. More...
void md2Final (Md2Context *context, uint8_t *digest)
 Finish the MD2 message digest. More...
void md2ProcessBlock (const uint8_t *m, uint8_t *x, uint8_t *c)
 Process message in 16-word blocks. More...


const uint8_t md2Oid [8]
const HashAlgo md2HashAlgo

Detailed Description

MD2 (Message-Digest Algorithm)


SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2019 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.

Oryx Embedded SARL (

Definition in file md2.h.

Macro Definition Documentation


#define MD2_BLOCK_SIZE   16

Definition at line 38 of file md2.h.


#define MD2_DIGEST_SIZE   16

Definition at line 40 of file md2.h.


#define MD2_HASH_ALGO   (&md2HashAlgo)

Definition at line 46 of file md2.h.


#define MD2_MIN_PAD_SIZE   1

Definition at line 42 of file md2.h.


#define MD2_OID   md2Oid

Definition at line 44 of file md2.h.

Function Documentation

◆ md2Compute()

error_t md2Compute ( const void *  data,
size_t  length,
uint8_t *  digest 

Digest a message using MD2.

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

Definition at line 97 of file md2.c.

◆ md2Final()

void md2Final ( Md2Context context,
uint8_t *  digest 

Finish the MD2 message digest.

[in]contextPointer to the MD2 context
[out]digestCalculated digest (optional parameter)

Definition at line 180 of file md2.c.

◆ md2Init()

void md2Init ( Md2Context context)

Initialize MD2 message digest context.

[in]contextPointer to the MD2 context to initialize

Definition at line 124 of file md2.c.

◆ md2ProcessBlock()

void md2ProcessBlock ( const uint8_t *  m,
uint8_t *  x,
uint8_t *  c 

Process message in 16-word blocks.

[in]m16-byte data block to process
[in,out]x48-byte buffer
[in,out]c16-byte checksum

Definition at line 210 of file md2.c.

◆ md2Update()

void md2Update ( Md2Context context,
const void *  data,
size_t  length 

Update the MD2 context with a portion of the message being hashed.

[in]contextPointer to the MD2 context
[in]dataPointer to the buffer being hashed
[in]lengthLength of the buffer

Definition at line 142 of file md2.c.

Variable Documentation

◆ md2HashAlgo

const HashAlgo md2HashAlgo

Definition at line 71 of file md2.c.

◆ md2Oid

const uint8_t md2Oid[8]

Definition at line 68 of file md2.c.