Blowfish block cipher.
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#include "config.h"
#include <stddef.h>
#include <stdint.h>
Go to the source code of this file.
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void | mbedtls_blowfish_init (mbedtls_blowfish_context *ctx) |
| Initialize Blowfish context. More...
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void | mbedtls_blowfish_free (mbedtls_blowfish_context *ctx) |
| Clear Blowfish context. More...
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int | mbedtls_blowfish_setkey (mbedtls_blowfish_context *ctx, const unsigned char *key, unsigned int keybits) |
| Blowfish key schedule. More...
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int | mbedtls_blowfish_crypt_ecb (mbedtls_blowfish_context *ctx, int mode, const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE], unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE]) |
| Blowfish-ECB block encryption/decryption. More...
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int | mbedtls_blowfish_crypt_cbc (mbedtls_blowfish_context *ctx, int mode, size_t length, unsigned char iv[MBEDTLS_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) More...
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int | mbedtls_blowfish_crypt_cfb64 (mbedtls_blowfish_context *ctx, int mode, size_t length, size_t *iv_off, unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE], const unsigned char *input, unsigned char *output) |
| Blowfish CFB buffer encryption/decryption. More...
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int | mbedtls_blowfish_crypt_ctr (mbedtls_blowfish_context *ctx, size_t length, size_t *nc_off, unsigned char nonce_counter[MBEDTLS_BLOWFISH_BLOCKSIZE], unsigned char stream_block[MBEDTLS_BLOWFISH_BLOCKSIZE], const unsigned char *input, unsigned char *output) |
| Blowfish-CTR buffer encryption/decryption. More...
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Blowfish block cipher.
Definition in file blowfish.h.
◆ MBEDTLS_BLOWFISH_BLOCKSIZE
#define MBEDTLS_BLOWFISH_BLOCKSIZE 8 /* Blowfish uses 64 bit blocks */ |
◆ MBEDTLS_BLOWFISH_DECRYPT
#define MBEDTLS_BLOWFISH_DECRYPT 0 |
◆ MBEDTLS_BLOWFISH_ENCRYPT
#define MBEDTLS_BLOWFISH_ENCRYPT 1 |
◆ MBEDTLS_BLOWFISH_MAX_KEY_BITS
#define MBEDTLS_BLOWFISH_MAX_KEY_BITS 448 |
◆ MBEDTLS_BLOWFISH_MIN_KEY_BITS
#define MBEDTLS_BLOWFISH_MIN_KEY_BITS 32 |
◆ MBEDTLS_BLOWFISH_ROUNDS
#define MBEDTLS_BLOWFISH_ROUNDS 16 |
Rounds to use. When increasing this value, make sure to extend the initialisation vectors
Definition at line 40 of file blowfish.h.
◆ MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED
#define MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED -0x0017 |
Blowfish hardware accelerator failed.
Definition at line 44 of file blowfish.h.
◆ MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH
#define MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH -0x0018 |
Invalid data input length.
Definition at line 45 of file blowfish.h.
◆ MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH
#define MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH -0x0016 |
Invalid key length.
Definition at line 43 of file blowfish.h.
◆ mbedtls_blowfish_crypt_cbc()
int mbedtls_blowfish_crypt_cbc |
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mbedtls_blowfish_context * |
ctx, |
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int |
mode, |
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size_t |
length, |
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unsigned char |
iv[MBEDTLS_BLOWFISH_BLOCKSIZE], |
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const unsigned char * |
input, |
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unsigned char * |
output |
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Blowfish-CBC buffer encryption/decryption Length should be a multiple of the block size (8 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
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ctx | Blowfish context |
mode | MBEDTLS_BLOWFISH_ENCRYPT or MBEDTLS_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 MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH
◆ mbedtls_blowfish_crypt_cfb64()
int mbedtls_blowfish_crypt_cfb64 |
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mbedtls_blowfish_context * |
ctx, |
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int |
mode, |
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size_t |
length, |
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size_t * |
iv_off, |
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unsigned char |
iv[MBEDTLS_BLOWFISH_BLOCKSIZE], |
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const unsigned char * |
input, |
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unsigned char * |
output |
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) |
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Blowfish CFB buffer encryption/decryption.
- 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
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ctx | Blowfish context |
mode | MBEDTLS_BLOWFISH_ENCRYPT or MBEDTLS_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
◆ mbedtls_blowfish_crypt_ctr()
int mbedtls_blowfish_crypt_ctr |
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mbedtls_blowfish_context * |
ctx, |
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size_t |
length, |
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size_t * |
nc_off, |
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unsigned char |
nonce_counter[MBEDTLS_BLOWFISH_BLOCKSIZE], |
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unsigned char |
stream_block[MBEDTLS_BLOWFISH_BLOCKSIZE], |
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const unsigned char * |
input, |
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unsigned char * |
output |
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) |
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Blowfish-CTR buffer encryption/decryption.
Warning: You have to keep the maximum use of your counter in mind!
- Parameters
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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
◆ mbedtls_blowfish_crypt_ecb()
int mbedtls_blowfish_crypt_ecb |
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mbedtls_blowfish_context * |
ctx, |
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int |
mode, |
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const unsigned char |
input[MBEDTLS_BLOWFISH_BLOCKSIZE], |
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unsigned char |
output[MBEDTLS_BLOWFISH_BLOCKSIZE] |
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) |
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Blowfish-ECB block encryption/decryption.
- Parameters
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ctx | Blowfish context |
mode | MBEDTLS_BLOWFISH_ENCRYPT or MBEDTLS_BLOWFISH_DECRYPT |
input | 8-byte input block |
output | 8-byte output block |
- Returns
- 0 if successful
◆ mbedtls_blowfish_free()
Clear Blowfish context.
- Parameters
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ctx | Blowfish context to be cleared |
◆ mbedtls_blowfish_init()
Initialize Blowfish context.
- Parameters
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ctx | Blowfish context to be initialized |
◆ mbedtls_blowfish_setkey()
Blowfish key schedule.
- Parameters
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ctx | Blowfish context to be initialized |
key | encryption key |
keybits | must be between 32 and 448 bits |
- Returns
- 0 if successful, or MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH