00001
00023 #ifndef MBEDTLS_BLOWFISH_H
00024 #define MBEDTLS_BLOWFISH_H
00025
00026 #if !defined(MBEDTLS_CONFIG_FILE)
00027 #include "config.h"
00028 #else
00029 #include MBEDTLS_CONFIG_FILE
00030 #endif
00031
00032 #include <stddef.h>
00033 #include <stdint.h>
00034
00035 #define MBEDTLS_BLOWFISH_ENCRYPT 1
00036 #define MBEDTLS_BLOWFISH_DECRYPT 0
00037 #define MBEDTLS_BLOWFISH_MAX_KEY_BITS 448
00038 #define MBEDTLS_BLOWFISH_MIN_KEY_BITS 32
00039 #define MBEDTLS_BLOWFISH_ROUNDS 16
00040 #define MBEDTLS_BLOWFISH_BLOCKSIZE 8
00041
00042 #define MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH -0x0016
00043 #define MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH -0x0018
00045 #if !defined(MBEDTLS_BLOWFISH_ALT)
00046
00047
00048
00049 #ifdef __cplusplus
00050 extern "C" {
00051 #endif
00052
00056 typedef struct
00057 {
00058 uint32_t P[MBEDTLS_BLOWFISH_ROUNDS + 2];
00059 uint32_t S[4][256];
00060 }
00061 mbedtls_blowfish_context;
00062
00068 void mbedtls_blowfish_init( mbedtls_blowfish_context *ctx );
00069
00075 void mbedtls_blowfish_free( mbedtls_blowfish_context *ctx );
00076
00086 int mbedtls_blowfish_setkey( mbedtls_blowfish_context *ctx, const unsigned char *key,
00087 unsigned int keybits );
00088
00099 int mbedtls_blowfish_crypt_ecb( mbedtls_blowfish_context *ctx,
00100 int mode,
00101 const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE],
00102 unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE] );
00103
00104 #if defined(MBEDTLS_CIPHER_MODE_CBC)
00105
00128 int mbedtls_blowfish_crypt_cbc( mbedtls_blowfish_context *ctx,
00129 int mode,
00130 size_t length,
00131 unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE],
00132 const unsigned char *input,
00133 unsigned char *output );
00134 #endif
00135
00136 #if defined(MBEDTLS_CIPHER_MODE_CFB)
00137
00158 int mbedtls_blowfish_crypt_cfb64( mbedtls_blowfish_context *ctx,
00159 int mode,
00160 size_t length,
00161 size_t *iv_off,
00162 unsigned char iv[MBEDTLS_BLOWFISH_BLOCKSIZE],
00163 const unsigned char *input,
00164 unsigned char *output );
00165 #endif
00166
00167 #if defined(MBEDTLS_CIPHER_MODE_CTR)
00168
00186 int mbedtls_blowfish_crypt_ctr( mbedtls_blowfish_context *ctx,
00187 size_t length,
00188 size_t *nc_off,
00189 unsigned char nonce_counter[MBEDTLS_BLOWFISH_BLOCKSIZE],
00190 unsigned char stream_block[MBEDTLS_BLOWFISH_BLOCKSIZE],
00191 const unsigned char *input,
00192 unsigned char *output );
00193 #endif
00194
00195 #ifdef __cplusplus
00196 }
00197 #endif
00198
00199 #else
00200 #include "blowfish_alt.h"
00201 #endif
00202
00203 #endif