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sha256.h File Reference
Data Structures | Functions

sha256.h File Reference

SHA-256 (Secure Hash Algorithm 256) More...

Go to the source code of this file.

Data Structures

struct  Sha256Context
 SHA-256 algorithm context. More...

Functions

error_t sha256Compute (const void *data, size_t length, uint8_t *digest)
 Digest a message using SHA-256.
void sha256Init (Sha256Context *context)
 Initialize SHA-256 message digest context.
void sha256Update (Sha256Context *context, const void *data, size_t length)
 Update the SHA-256 context with a portion of the message being hashed.
void sha256Final (Sha256Context *context, uint8_t *digest)
 Finish the SHA-256 message digest.
void sha256ProcessBlock (Sha256Context *context)
 Process message in 16-word blocks.

Detailed Description

SHA-256 (Secure Hash Algorithm 256)

License

Copyright (C) 2010-2017 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.

Author:
Oryx Embedded SARL (www.oryx-embedded.com)
Version:
1.7.6

Definition in file sha256.h.

Function Documentation

error_t sha256Compute ( const void *  data,
size_t  length,
uint8_t *  digest 
)

Digest a message using SHA-256.

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 105 of file sha256.c.

void sha256Final ( Sha256Context *  context,
uint8_t *  digest 
)

Finish the SHA-256 message digest.

Parameters:
[in]contextPointer to the SHA-256 context
[out]digestCalculated digest (optional parameter)

Definition at line 197 of file sha256.c.

void sha256Init ( Sha256Context *  context )

Initialize SHA-256 message digest context.

Parameters:
[in]contextPointer to the SHA-256 context to initialize

Definition at line 132 of file sha256.c.

void sha256ProcessBlock ( Sha256Context *  context )

Process message in 16-word blocks.

Parameters:
[in]contextPointer to the SHA-256 context

Definition at line 237 of file sha256.c.

void sha256Update ( Sha256Context *  context,
const void *  data,
size_t  length 
)

Update the SHA-256 context with a portion of the message being hashed.

Parameters:
[in]contextPointer to the SHA-256 context
[in]dataPointer to the buffer being hashed
[in]lengthLength of the buffer

Definition at line 158 of file sha256.c.

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