Example program to test AES-GCM functionality. Used for a workshop
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des.h File Reference
DES block cipher.
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Go to the source code of this file.
struct des_context DES context structure. More... struct des3_context Triple-DES context structure. More... void des_key_set_parity (unsigned char key[DES_KEY_SIZE]) Set key parity on the given key to odd. int des_key_check_key_parity (const unsigned char key[DES_KEY_SIZE]) Check that key parity on the given key is odd. int des_key_check_weak (const unsigned char key[DES_KEY_SIZE]) Check that key is not a weak or semi-weak DES key. int des_setkey_enc (des_context *ctx, const unsigned char key[DES_KEY_SIZE]) DES key schedule (56-bit, encryption) int des_setkey_dec (des_context *ctx, const unsigned char key[DES_KEY_SIZE]) DES key schedule (56-bit, decryption) int des3_set2key_enc (des3_context *ctx, const unsigned char key[DES_KEY_SIZE *2]) Triple-DES key schedule (112-bit, encryption) int des3_set2key_dec (des3_context *ctx, const unsigned char key[DES_KEY_SIZE *2]) Triple-DES key schedule (112-bit, decryption) int des3_set3key_enc (des3_context *ctx, const unsigned char key[DES_KEY_SIZE *3]) Triple-DES key schedule (168-bit, encryption) int des3_set3key_dec (des3_context *ctx, const unsigned char key[DES_KEY_SIZE *3]) Triple-DES key schedule (168-bit, decryption) int des_crypt_ecb (des_context *ctx, const unsigned char input[8], unsigned char output[8]) DES-ECB block encryption/decryption. int des_crypt_cbc (des_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output) DES-CBC buffer encryption/decryption. int des3_crypt_ecb (des3_context *ctx, const unsigned char input[8], unsigned char output[8]) 3DES-ECB block encryption/decryption int des3_crypt_cbc (des3_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output) 3DES-CBC buffer encryption/decryption int des_self_test (int verbose) Checkup routine.
Detailed Description
DES block cipher.
Copyright (C) 2006-2014, 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 des.h .
Function Documentation
int des3_crypt_cbc
(
des3_context * ctx ,
int
mode ,
size_t
length ,
unsigned char
iv [8],
const unsigned char *
input ,
unsigned char *
output
)
3DES-CBC buffer encryption/decryption
Parameters:
ctx 3DES context mode DES_ENCRYPT or DES_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_DES_INVALID_INPUT_LENGTH Definition at line 724 of file des.c .
int des3_crypt_ecb
(
des3_context * ctx ,
const unsigned char
input [8],
unsigned char
output [8]
)
3DES-ECB block encryption/decryption
Parameters:
ctx 3DES context input 64-bit input block output 64-bit output block
Returns: 0 if successful Definition at line 680 of file des.c .
int des3_set2key_dec
(
des3_context * ctx ,
const unsigned char
key [DES_KEY_SIZE *2]
)
Triple-DES key schedule (112-bit, decryption)
Parameters:
ctx 3DES context to be initialized key 16-byte secret key
Returns: 0 Definition at line 530 of file des.c .
int des3_set2key_enc
(
des3_context * ctx ,
const unsigned char
key [DES_KEY_SIZE *2]
)
Triple-DES key schedule (112-bit, encryption)
Parameters:
ctx 3DES context to be initialized key 16-byte secret key
Returns: 0 Definition at line 516 of file des.c .
int des3_set3key_dec
(
des3_context * ctx ,
const unsigned char
key [DES_KEY_SIZE *3]
)
Triple-DES key schedule (168-bit, decryption)
Parameters:
ctx 3DES context to be initialized key 24-byte secret key
Returns: 0 Definition at line 581 of file des.c .
int des3_set3key_enc
(
des3_context * ctx ,
const unsigned char
key [DES_KEY_SIZE *3]
)
Triple-DES key schedule (168-bit, encryption)
Parameters:
ctx 3DES context to be initialized key 24-byte secret key
Returns: 0 Definition at line 567 of file des.c .
int des_crypt_cbc
(
des_context * ctx ,
int
mode ,
size_t
length ,
unsigned char
iv [8],
const unsigned char *
input ,
unsigned char *
output
)
DES-CBC buffer encryption/decryption.
Parameters:
ctx DES context mode DES_ENCRYPT or DES_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
Definition at line 627 of file des.c .
int des_crypt_ecb
(
des_context * ctx ,
const unsigned char
input [8],
unsigned char
output [8]
)
DES-ECB block encryption/decryption.
Parameters:
ctx DES context input 64-bit input block output 64-bit output block
Returns: 0 if successful Definition at line 595 of file des.c .
int des_key_check_key_parity
(
const unsigned char
key [DES_KEY_SIZE] )
Check that key parity on the given key is odd.
DES keys are 56 bits long, but each byte is padded with a parity bit to allow verification.
Parameters:
Returns: 0 is parity was ok, 1 if parity was not correct. Definition at line 325 of file des.c .
int des_key_check_weak
(
const unsigned char
key [DES_KEY_SIZE] )
Check that key is not a weak or semi-weak DES key.
Parameters:
Returns: 0 if no weak key was found, 1 if a weak key was identified. Definition at line 380 of file des.c .
void des_key_set_parity
(
unsigned char
key [DES_KEY_SIZE] )
Set key parity on the given key to odd.
DES keys are 56 bits long, but each byte is padded with a parity bit to allow verification.
Parameters:
Definition at line 314 of file des.c .
int des_self_test
(
int
verbose )
Checkup routine.
Returns: 0 if successful, or 1 if the test failed Definition at line 835 of file des.c .
int des_setkey_dec
(
des_context * ctx ,
const unsigned char
key [DES_KEY_SIZE]
)
DES key schedule (56-bit, decryption)
Parameters:
ctx DES context to be initialized key 8-byte secret key
Returns: 0 Definition at line 473 of file des.c .
int des_setkey_enc
(
des_context * ctx ,
const unsigned char
key [DES_KEY_SIZE]
)
DES key schedule (56-bit, encryption)
Parameters:
ctx DES context to be initialized key 8-byte secret key
Returns: 0 Definition at line 463 of file des.c .
Hannes Tschofenig
1.7.2