Rtos API example
camellia.h File Reference
Camellia block cipher. More...
Go to the source code of this file.
Data Structures | |
struct | mbedtls_camellia_context |
CAMELLIA context structure. More... | |
Functions | |
void | mbedtls_camellia_init (mbedtls_camellia_context *ctx) |
Initialize CAMELLIA context. | |
void | mbedtls_camellia_free (mbedtls_camellia_context *ctx) |
Clear CAMELLIA context. | |
int | mbedtls_camellia_setkey_enc (mbedtls_camellia_context *ctx, const unsigned char *key, unsigned int keybits) |
CAMELLIA key schedule (encryption) | |
int | mbedtls_camellia_setkey_dec (mbedtls_camellia_context *ctx, const unsigned char *key, unsigned int keybits) |
CAMELLIA key schedule (decryption) | |
int | mbedtls_camellia_crypt_ecb (mbedtls_camellia_context *ctx, int mode, const unsigned char input[16], unsigned char output[16]) |
CAMELLIA-ECB block encryption/decryption. | |
int | mbedtls_camellia_crypt_cbc (mbedtls_camellia_context *ctx, int mode, size_t length, unsigned char iv[16], const unsigned char *input, unsigned char *output) |
CAMELLIA-CBC buffer encryption/decryption Length should be a multiple of the block size (16 bytes) | |
int | mbedtls_camellia_crypt_cfb128 (mbedtls_camellia_context *ctx, int mode, size_t length, size_t *iv_off, unsigned char iv[16], const unsigned char *input, unsigned char *output) |
CAMELLIA-CFB128 buffer encryption/decryption. | |
int | mbedtls_camellia_crypt_ctr (mbedtls_camellia_context *ctx, size_t length, size_t *nc_off, unsigned char nonce_counter[16], unsigned char stream_block[16], const unsigned char *input, unsigned char *output) |
CAMELLIA-CTR buffer encryption/decryption. | |
int | mbedtls_camellia_self_test (int verbose) |
Checkup routine. |
Detailed Description
Camellia block cipher.
Copyright (C) 2006-2015, ARM Limited, All Rights Reserved SPDX-License-Identifier: Apache-2.0
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
This file is part of mbed TLS (https://tls.mbed.org)
Definition in file camellia.h.
Function Documentation
int mbedtls_camellia_crypt_cbc | ( | mbedtls_camellia_context * | ctx, |
int | mode, | ||
size_t | length, | ||
unsigned char | iv[16], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
CAMELLIA-CBC buffer encryption/decryption Length should be a multiple of the block size (16 bytes)
- Note:
- Upon exit, the content of the IV is updated so that you can call the function same function again on the following block(s) of data and get the same result as if it was encrypted in one call. This allows a "streaming" usage. If on the other hand you need to retain the contents of the IV, you should either save it manually or use the cipher module instead.
- Parameters:
-
ctx CAMELLIA context mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_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 MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
Definition at line 558 of file camellia.c.
int mbedtls_camellia_crypt_cfb128 | ( | mbedtls_camellia_context * | ctx, |
int | mode, | ||
size_t | length, | ||
size_t * | iv_off, | ||
unsigned char | iv[16], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
CAMELLIA-CFB128 buffer encryption/decryption.
Note: Due to the nature of CFB you should use the same key schedule for both encryption and decryption. So a context initialized with mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and CAMELLIE_DECRYPT.
- Note:
- Upon exit, the content of the IV is updated so that you can call the function same function again on the following block(s) of data and get the same result as if it was encrypted in one call. This allows a "streaming" usage. If on the other hand you need to retain the contents of the IV, you should either save it manually or use the cipher module instead.
- Parameters:
-
ctx CAMELLIA context mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_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, or MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH
Definition at line 612 of file camellia.c.
int mbedtls_camellia_crypt_ctr | ( | mbedtls_camellia_context * | ctx, |
size_t | length, | ||
size_t * | nc_off, | ||
unsigned char | nonce_counter[16], | ||
unsigned char | stream_block[16], | ||
const unsigned char * | input, | ||
unsigned char * | output | ||
) |
CAMELLIA-CTR buffer encryption/decryption.
Warning: You have to keep the maximum use of your counter in mind!
Note: Due to the nature of CTR you should use the same key schedule for both encryption and decryption. So a context initialized with mbedtls_camellia_setkey_enc() for both MBEDTLS_CAMELLIA_ENCRYPT and MBEDTLS_CAMELLIA_DECRYPT.
- Parameters:
-
ctx CAMELLIA 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 128-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 660 of file camellia.c.
int mbedtls_camellia_crypt_ecb | ( | mbedtls_camellia_context * | ctx, |
int | mode, | ||
const unsigned char | input[16], | ||
unsigned char | output[16] | ||
) |
CAMELLIA-ECB block encryption/decryption.
- Parameters:
-
ctx CAMELLIA context mode MBEDTLS_CAMELLIA_ENCRYPT or MBEDTLS_CAMELLIA_DECRYPT input 16-byte input block output 16-byte output block
- Returns:
- 0 if successful
Definition at line 495 of file camellia.c.
void mbedtls_camellia_free | ( | mbedtls_camellia_context * | ctx ) |
Clear CAMELLIA context.
- Parameters:
-
ctx CAMELLIA context to be cleared
Definition at line 331 of file camellia.c.
void mbedtls_camellia_init | ( | mbedtls_camellia_context * | ctx ) |
Initialize CAMELLIA context.
- Parameters:
-
ctx CAMELLIA context to be initialized
Definition at line 326 of file camellia.c.
int mbedtls_camellia_self_test | ( | int | verbose ) |
Checkup routine.
- Returns:
- 0 if successful, or 1 if the test failed
Definition at line 894 of file camellia.c.
int mbedtls_camellia_setkey_dec | ( | mbedtls_camellia_context * | ctx, |
const unsigned char * | key, | ||
unsigned int | keybits | ||
) |
CAMELLIA key schedule (decryption)
- Parameters:
-
ctx CAMELLIA context to be initialized key decryption key keybits must be 128, 192 or 256
- Returns:
- 0 if successful, or MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH
Definition at line 447 of file camellia.c.
int mbedtls_camellia_setkey_enc | ( | mbedtls_camellia_context * | ctx, |
const unsigned char * | key, | ||
unsigned int | keybits | ||
) |
CAMELLIA key schedule (encryption)
- Parameters:
-
ctx CAMELLIA context to be initialized key encryption key keybits must be 128, 192 or 256
- Returns:
- 0 if successful, or MBEDTLS_ERR_CAMELLIA_INVALID_KEY_LENGTH
Definition at line 342 of file camellia.c.
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