Hannes Tschofenig
Example program to test AES-GCM functionality. Used for a workshop
blowfish.h File Reference
Blowfish block cipher. More...
Go to the source code of this file.
Data Structures | |
| struct | blowfish_context |
| Blowfish context structure. More... | |
Functions | |
| int | blowfish_setkey (blowfish_context *ctx, const unsigned char *key, unsigned int keysize) |
| Blowfish key schedule. | |
| int | blowfish_crypt_ecb (blowfish_context *ctx, int mode, const unsigned char input[BLOWFISH_BLOCKSIZE], unsigned char output[BLOWFISH_BLOCKSIZE]) |
| Blowfish-ECB block encryption/decryption. | |
| int | blowfish_crypt_cbc (blowfish_context *ctx, int mode, size_t length, unsigned char iv[BLOWFISH_BLOCKSIZE], const unsigned char *input, unsigned char *output) |
| Blowfish-CBC buffer encryption/decryption Length should be a multiple of the block size (8 bytes) | |
| int | blowfish_crypt_cfb64 (blowfish_context *ctx, int mode, size_t length, size_t *iv_off, unsigned char iv[BLOWFISH_BLOCKSIZE], const unsigned char *input, unsigned char *output) |
| Blowfish CFB buffer encryption/decryption. | |
| int | blowfish_crypt_ctr (blowfish_context *ctx, size_t length, size_t *nc_off, unsigned char nonce_counter[BLOWFISH_BLOCKSIZE], unsigned char stream_block[BLOWFISH_BLOCKSIZE], const unsigned char *input, unsigned char *output) |
| Blowfish-CTR buffer encryption/decryption. | |
Detailed Description
Blowfish block cipher.
Copyright (C) 2012-2014, Brainspark B.V.
This file is part of PolarSSL (http://www.polarssl.org) Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
All rights reserved.
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.
Definition in file blowfish.h.
Function Documentation
| int blowfish_crypt_cbc | ( | blowfish_context * | ctx, |
| int | mode, | ||
| size_t | length, | ||
| unsigned char | iv[BLOWFISH_BLOCKSIZE], | ||
| const unsigned char * | input, | ||
| unsigned char * | output | ||
| ) |
Blowfish-CBC buffer encryption/decryption Length should be a multiple of the block size (8 bytes)
- Parameters:
-
ctx Blowfish context mode BLOWFISH_ENCRYPT or BLOWFISH_DECRYPT length length of the input data iv initialization vector (updated after use) input buffer holding the input data output buffer holding the output data
- Returns:
- 0 if successful, or POLARSSL_ERR_BLOWFISH_INVALID_INPUT_LENGTH
Definition at line 245 of file blowfish.c.
| int blowfish_crypt_cfb64 | ( | blowfish_context * | ctx, |
| int | mode, | ||
| size_t | length, | ||
| size_t * | iv_off, | ||
| unsigned char | iv[BLOWFISH_BLOCKSIZE], | ||
| const unsigned char * | input, | ||
| unsigned char * | output | ||
| ) |
Blowfish CFB buffer encryption/decryption.
- Parameters:
-
ctx Blowfish context mode BLOWFISH_ENCRYPT or BLOWFISH_DECRYPT length length of the input data iv_off offset in IV (updated after use) iv initialization vector (updated after use) input buffer holding the input data output buffer holding the output data
- Returns:
- 0 if successful
Definition at line 299 of file blowfish.c.
| int blowfish_crypt_ctr | ( | blowfish_context * | ctx, |
| size_t | length, | ||
| size_t * | nc_off, | ||
| unsigned char | nonce_counter[BLOWFISH_BLOCKSIZE], | ||
| unsigned char | stream_block[BLOWFISH_BLOCKSIZE], | ||
| const unsigned char * | input, | ||
| unsigned char * | output | ||
| ) |
Blowfish-CTR buffer encryption/decryption.
Warning: You have to keep the maximum use of your counter in mind!
- Parameters:
-
ctx Blowfish context length The length of the data nc_off The offset in the current stream_block (for resuming within current cipher stream). The offset pointer to should be 0 at the start of a stream. nonce_counter The 64-bit nonce and counter. stream_block The saved stream-block for resuming. Is overwritten by the function. input The input data stream output The output data stream
- Returns:
- 0 if successful
Definition at line 347 of file blowfish.c.
| int blowfish_crypt_ecb | ( | blowfish_context * | ctx, |
| int | mode, | ||
| const unsigned char | input[BLOWFISH_BLOCKSIZE], | ||
| unsigned char | output[BLOWFISH_BLOCKSIZE] | ||
| ) |
Blowfish-ECB block encryption/decryption.
- Parameters:
-
ctx Blowfish context mode BLOWFISH_ENCRYPT or BLOWFISH_DECRYPT input 8-byte input block output 8-byte output block
- Returns:
- 0 if successful
Definition at line 216 of file blowfish.c.
| int blowfish_setkey | ( | blowfish_context * | ctx, |
| const unsigned char * | key, | ||
| unsigned int | keysize | ||
| ) |
Blowfish key schedule.
- Parameters:
-
ctx Blowfish context to be initialized key encryption key keysize must be between 32 and 448 bits
- Returns:
- 0 if successful, or POLARSSL_ERR_BLOWFISH_INVALID_KEY_LENGTH
Definition at line 158 of file blowfish.c.
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