mbed TLS v2.6.0
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DES block cipher. More...
Go to the source code of this file.
Data Structures | |
struct | mbedtls_des_context |
DES context structure. More... | |
struct | mbedtls_des3_context |
Triple-DES context structure. More... | |
Macros | |
#define | MBEDTLS_DES_ENCRYPT 1 |
#define | MBEDTLS_DES_DECRYPT 0 |
#define | MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH -0x0032 |
The data input has an invalid length. More... | |
#define | MBEDTLS_DES_KEY_SIZE 8 |
Functions | |
void | mbedtls_des_init (mbedtls_des_context *ctx) |
Initialize DES context. More... | |
void | mbedtls_des_free (mbedtls_des_context *ctx) |
Clear DES context. More... | |
void | mbedtls_des3_init (mbedtls_des3_context *ctx) |
Initialize Triple-DES context. More... | |
void | mbedtls_des3_free (mbedtls_des3_context *ctx) |
Clear Triple-DES context. More... | |
void | mbedtls_des_key_set_parity (unsigned char key[MBEDTLS_DES_KEY_SIZE]) |
Set key parity on the given key to odd. More... | |
int | mbedtls_des_key_check_key_parity (const unsigned char key[MBEDTLS_DES_KEY_SIZE]) |
Check that key parity on the given key is odd. More... | |
int | mbedtls_des_key_check_weak (const unsigned char key[MBEDTLS_DES_KEY_SIZE]) |
Check that key is not a weak or semi-weak DES key. More... | |
int | mbedtls_des_setkey_enc (mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE]) |
DES key schedule (56-bit, encryption) More... | |
int | mbedtls_des_setkey_dec (mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE]) |
DES key schedule (56-bit, decryption) More... | |
int | mbedtls_des3_set2key_enc (mbedtls_des3_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE *2]) |
Triple-DES key schedule (112-bit, encryption) More... | |
int | mbedtls_des3_set2key_dec (mbedtls_des3_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE *2]) |
Triple-DES key schedule (112-bit, decryption) More... | |
int | mbedtls_des3_set3key_enc (mbedtls_des3_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE *3]) |
Triple-DES key schedule (168-bit, encryption) More... | |
int | mbedtls_des3_set3key_dec (mbedtls_des3_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE *3]) |
Triple-DES key schedule (168-bit, decryption) More... | |
int | mbedtls_des_crypt_ecb (mbedtls_des_context *ctx, const unsigned char input[8], unsigned char output[8]) |
DES-ECB block encryption/decryption. More... | |
int | mbedtls_des_crypt_cbc (mbedtls_des_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output) |
DES-CBC buffer encryption/decryption. More... | |
int | mbedtls_des3_crypt_ecb (mbedtls_des3_context *ctx, const unsigned char input[8], unsigned char output[8]) |
3DES-ECB block encryption/decryption More... | |
int | mbedtls_des3_crypt_cbc (mbedtls_des3_context *ctx, int mode, size_t length, unsigned char iv[8], const unsigned char *input, unsigned char *output) |
3DES-CBC buffer encryption/decryption More... | |
void | mbedtls_des_setkey (uint32_t SK[32], const unsigned char key[MBEDTLS_DES_KEY_SIZE]) |
Internal function for key expansion. More... | |
int | mbedtls_des_self_test (int verbose) |
Checkup routine. More... | |
DES block cipher.
Copyright (C) 2006-2015, ARM Limited, All Rights Reserved SPDX-License-Identifier: GPL-2.0
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.
This file is part of mbed TLS (https://tls.mbed.org)
Definition in file des.h.
#define MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH -0x0032 |
int mbedtls_des3_crypt_cbc | ( | mbedtls_des3_context * | ctx, |
int | mode, | ||
size_t | length, | ||
unsigned char | iv[8], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
3DES-CBC buffer encryption/decryption
ctx | 3DES context |
mode | MBEDTLS_DES_ENCRYPT or MBEDTLS_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 |
int mbedtls_des3_crypt_ecb | ( | mbedtls_des3_context * | ctx, |
const unsigned char | input[8], | ||
unsigned char | output[8] | ||
) |
3DES-ECB block encryption/decryption
ctx | 3DES context |
input | 64-bit input block |
output | 64-bit output block |
void mbedtls_des3_free | ( | mbedtls_des3_context * | ctx | ) |
Clear Triple-DES context.
ctx | DES3 context to be cleared |
void mbedtls_des3_init | ( | mbedtls_des3_context * | ctx | ) |
Initialize Triple-DES context.
ctx | DES3 context to be initialized |
int mbedtls_des3_set2key_dec | ( | mbedtls_des3_context * | ctx, |
const unsigned char | key[MBEDTLS_DES_KEY_SIZE *2] | ||
) |
Triple-DES key schedule (112-bit, decryption)
ctx | 3DES context to be initialized |
key | 16-byte secret key |
int mbedtls_des3_set2key_enc | ( | mbedtls_des3_context * | ctx, |
const unsigned char | key[MBEDTLS_DES_KEY_SIZE *2] | ||
) |
Triple-DES key schedule (112-bit, encryption)
ctx | 3DES context to be initialized |
key | 16-byte secret key |
int mbedtls_des3_set3key_dec | ( | mbedtls_des3_context * | ctx, |
const unsigned char | key[MBEDTLS_DES_KEY_SIZE *3] | ||
) |
Triple-DES key schedule (168-bit, decryption)
ctx | 3DES context to be initialized |
key | 24-byte secret key |
int mbedtls_des3_set3key_enc | ( | mbedtls_des3_context * | ctx, |
const unsigned char | key[MBEDTLS_DES_KEY_SIZE *3] | ||
) |
Triple-DES key schedule (168-bit, encryption)
ctx | 3DES context to be initialized |
key | 24-byte secret key |
int mbedtls_des_crypt_cbc | ( | mbedtls_des_context * | ctx, |
int | mode, | ||
size_t | length, | ||
unsigned char | iv[8], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
DES-CBC buffer encryption/decryption.
ctx | DES context |
mode | MBEDTLS_DES_ENCRYPT or MBEDTLS_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 |
int mbedtls_des_crypt_ecb | ( | mbedtls_des_context * | ctx, |
const unsigned char | input[8], | ||
unsigned char | output[8] | ||
) |
DES-ECB block encryption/decryption.
ctx | DES context |
input | 64-bit input block |
output | 64-bit output block |
void mbedtls_des_free | ( | mbedtls_des_context * | ctx | ) |
Clear DES context.
ctx | DES context to be cleared |
void mbedtls_des_init | ( | mbedtls_des_context * | ctx | ) |
Initialize DES context.
ctx | DES context to be initialized |
int mbedtls_des_key_check_key_parity | ( | const unsigned char | key[MBEDTLS_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.
key | 8-byte secret key |
int mbedtls_des_key_check_weak | ( | const unsigned char | key[MBEDTLS_DES_KEY_SIZE] | ) |
Check that key is not a weak or semi-weak DES key.
key | 8-byte secret key |
void mbedtls_des_key_set_parity | ( | unsigned char | key[MBEDTLS_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.
key | 8-byte secret key |
int mbedtls_des_self_test | ( | int | verbose | ) |
Checkup routine.
void mbedtls_des_setkey | ( | uint32_t | SK[32], |
const unsigned char | key[MBEDTLS_DES_KEY_SIZE] | ||
) |
Internal function for key expansion.
(Only exposed to allow overriding it, see MBEDTLS_DES_SETKEY_ALT)
SK | Round keys |
key | Base key |
int mbedtls_des_setkey_dec | ( | mbedtls_des_context * | ctx, |
const unsigned char | key[MBEDTLS_DES_KEY_SIZE] | ||
) |
DES key schedule (56-bit, decryption)
ctx | DES context to be initialized |
key | 8-byte secret key |
int mbedtls_des_setkey_enc | ( | mbedtls_des_context * | ctx, |
const unsigned char | key[MBEDTLS_DES_KEY_SIZE] | ||
) |
DES key schedule (56-bit, encryption)
ctx | DES context to be initialized |
key | 8-byte secret key |