Mbed TLS v2.28.5
blowfish.h
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1 
6 /*
7  * Copyright The Mbed TLS Contributors
8  * SPDX-License-Identifier: Apache-2.0
9  *
10  * Licensed under the Apache License, Version 2.0 (the "License"); you may
11  * not use this file except in compliance with the License.
12  * You may obtain a copy of the License at
13  *
14  * http://www.apache.org/licenses/LICENSE-2.0
15  *
16  * Unless required by applicable law or agreed to in writing, software
17  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
18  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19  * See the License for the specific language governing permissions and
20  * limitations under the License.
21  */
22 #ifndef MBEDTLS_BLOWFISH_H
23 #define MBEDTLS_BLOWFISH_H
24 
25 #if !defined(MBEDTLS_CONFIG_FILE)
26 #include "mbedtls/config.h"
27 #else
28 #include MBEDTLS_CONFIG_FILE
29 #endif
30 
31 #include <stddef.h>
32 #include <stdint.h>
33 
34 #include "mbedtls/platform_util.h"
35 
36 #define MBEDTLS_BLOWFISH_ENCRYPT 1
37 #define MBEDTLS_BLOWFISH_DECRYPT 0
38 #define MBEDTLS_BLOWFISH_MAX_KEY_BITS 448
39 #define MBEDTLS_BLOWFISH_MIN_KEY_BITS 32
40 #define MBEDTLS_BLOWFISH_ROUNDS 16
41 #define MBEDTLS_BLOWFISH_BLOCKSIZE 8 /* Blowfish uses 64 bit blocks */
42 
43 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
44 #define MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH MBEDTLS_DEPRECATED_NUMERIC_CONSTANT(-0x0016)
45 #endif /* !MBEDTLS_DEPRECATED_REMOVED */
46 
47 #define MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA -0x0016
48 
50 #define MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH -0x0018
51 
52 /* MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED is deprecated and should not be used.
53  */
55 #define MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED -0x0017
56 
57 #ifdef __cplusplus
58 extern "C" {
59 #endif
60 
61 #if !defined(MBEDTLS_BLOWFISH_ALT)
62 // Regular implementation
63 //
64 
68 typedef struct mbedtls_blowfish_context {
69  uint32_t P[MBEDTLS_BLOWFISH_ROUNDS + 2];
70  uint32_t S[4][256];
71 }
73 
74 #else /* MBEDTLS_BLOWFISH_ALT */
75 #include "blowfish_alt.h"
76 #endif /* MBEDTLS_BLOWFISH_ALT */
77 
85 
95 
108 int mbedtls_blowfish_setkey(mbedtls_blowfish_context *ctx, const unsigned char *key,
109  unsigned int keybits);
110 
128  int mode,
129  const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE],
130  unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE]);
131 
132 #if defined(MBEDTLS_CIPHER_MODE_CBC)
133 
162  int mode,
163  size_t length,
164  unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE],
165  const unsigned char *input,
166  unsigned char *output);
167 #endif /* MBEDTLS_CIPHER_MODE_CBC */
168 
169 #if defined(MBEDTLS_CIPHER_MODE_CFB)
170 
202  int mode,
203  size_t length,
204  size_t *iv_off,
205  unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE],
206  const unsigned char *input,
207  unsigned char *output);
208 #endif /*MBEDTLS_CIPHER_MODE_CFB */
209 
210 #if defined(MBEDTLS_CIPHER_MODE_CTR)
211 
275  size_t length,
276  size_t *nc_off,
277  unsigned char nonce_counter[MBEDTLS_BLOWFISH_BLOCKSIZE],
278  unsigned char stream_block[MBEDTLS_BLOWFISH_BLOCKSIZE],
279  const unsigned char *input,
280  unsigned char *output);
281 #endif /* MBEDTLS_CIPHER_MODE_CTR */
282 
283 #ifdef __cplusplus
284 }
285 #endif
286 
287 #endif /* blowfish.h */
#define MBEDTLS_BLOWFISH_BLOCKSIZE
Definition: blowfish.h:41
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)
Perform a Blowfish-CTR buffer encryption/decryption operation.
Configuration options (set of defines)
Common and shared functions used by multiple modules in the Mbed TLS library.
struct mbedtls_blowfish_context mbedtls_blowfish_context
Blowfish context structure.
Blowfish context structure.
Definition: blowfish.h:68
void mbedtls_blowfish_init(mbedtls_blowfish_context *ctx)
Initialize a Blowfish context.
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)
Perform a Blowfish CFB buffer encryption/decryption operation.
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)
Perform a Blowfish-CBC buffer encryption/decryption operation.
int mbedtls_blowfish_crypt_ecb(mbedtls_blowfish_context *ctx, int mode, const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE], unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE])
Perform a Blowfish-ECB block encryption/decryption operation.
uint32_t S[4][256]
Definition: blowfish.h:70
int mbedtls_blowfish_setkey(mbedtls_blowfish_context *ctx, const unsigned char *key, unsigned int keybits)
Perform a Blowfish key schedule operation.
#define MBEDTLS_BLOWFISH_ROUNDS
Definition: blowfish.h:40
uint32_t P[MBEDTLS_BLOWFISH_ROUNDS+2]
Definition: blowfish.h:69
void mbedtls_blowfish_free(mbedtls_blowfish_context *ctx)
Clear a Blowfish context.