mirror of
https://github.com/Mbed-TLS/mbedtls.git
synced 2024-12-29 09:21:19 +00:00
150 lines
3.8 KiB
C
150 lines
3.8 KiB
C
/**
|
|
* \file des.h
|
|
*/
|
|
#ifndef XYSSL_DES_H
|
|
#define XYSSL_DES_H
|
|
|
|
#define DES_ENCRYPT 1
|
|
#define DES_DECRYPT 0
|
|
|
|
/**
|
|
* \brief DES context structure
|
|
*/
|
|
typedef struct
|
|
{
|
|
int mode; /*!< encrypt/decrypt */
|
|
unsigned long sk[32]; /*!< DES subkeys */
|
|
}
|
|
des_context;
|
|
|
|
/**
|
|
* \brief Triple-DES context structure
|
|
*/
|
|
typedef struct
|
|
{
|
|
int mode; /*!< encrypt/decrypt */
|
|
unsigned long sk[96]; /*!< 3DES subkeys */
|
|
}
|
|
des3_context;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \brief DES key schedule (56-bit, encryption)
|
|
*
|
|
* \param ctx DES context to be initialized
|
|
* \param key 8-byte secret key
|
|
*/
|
|
void des_setkey_enc( des_context *ctx, unsigned char key[8] );
|
|
|
|
/**
|
|
* \brief DES key schedule (56-bit, decryption)
|
|
*
|
|
* \param ctx DES context to be initialized
|
|
* \param key 8-byte secret key
|
|
*/
|
|
void des_setkey_dec( des_context *ctx, unsigned char key[8] );
|
|
|
|
/**
|
|
* \brief Triple-DES key schedule (112-bit, encryption)
|
|
*
|
|
* \param ctx 3DES context to be initialized
|
|
* \param key 16-byte secret key
|
|
*/
|
|
void des3_set2key_enc( des3_context *ctx, unsigned char key[16] );
|
|
|
|
/**
|
|
* \brief Triple-DES key schedule (112-bit, decryption)
|
|
*
|
|
* \param ctx 3DES context to be initialized
|
|
* \param key 16-byte secret key
|
|
*/
|
|
void des3_set2key_dec( des3_context *ctx, unsigned char key[16] );
|
|
|
|
/**
|
|
* \brief Triple-DES key schedule (168-bit, encryption)
|
|
*
|
|
* \param ctx 3DES context to be initialized
|
|
* \param key 24-byte secret key
|
|
*/
|
|
void des3_set3key_enc( des3_context *ctx, unsigned char key[24] );
|
|
|
|
/**
|
|
* \brief Triple-DES key schedule (168-bit, decryption)
|
|
*
|
|
* \param ctx 3DES context to be initialized
|
|
* \param key 24-byte secret key
|
|
*/
|
|
void des3_set3key_dec( des3_context *ctx, unsigned char key[24] );
|
|
|
|
/**
|
|
* \brief DES-ECB block encryption/decryption
|
|
*
|
|
* \param ctx DES context
|
|
* \param input 64-bit input block
|
|
* \param output 64-bit output block
|
|
*/
|
|
void des_crypt_ecb( des_context *ctx,
|
|
unsigned char input[8],
|
|
unsigned char output[8] );
|
|
|
|
/**
|
|
* \brief DES-CBC buffer encryption/decryption
|
|
*
|
|
* \param ctx DES context
|
|
* \param mode DES_ENCRYPT or DES_DECRYPT
|
|
* \param length length of the input data
|
|
* \param iv initialization vector (updated after use)
|
|
* \param input buffer holding the input data
|
|
* \param output buffer holding the output data
|
|
*/
|
|
void des_crypt_cbc( des_context *ctx,
|
|
int mode,
|
|
int length,
|
|
unsigned char iv[8],
|
|
unsigned char *input,
|
|
unsigned char *output );
|
|
|
|
/**
|
|
* \brief 3DES-ECB block encryption/decryption
|
|
*
|
|
* \param ctx 3DES context
|
|
* \param input 64-bit input block
|
|
* \param output 64-bit output block
|
|
*/
|
|
void des3_crypt_ecb( des3_context *ctx,
|
|
unsigned char input[8],
|
|
unsigned char output[8] );
|
|
|
|
/**
|
|
* \brief 3DES-CBC buffer encryption/decryption
|
|
*
|
|
* \param ctx 3DES context
|
|
* \param mode DES_ENCRYPT or DES_DECRYPT
|
|
* \param length length of the input data
|
|
* \param iv initialization vector (updated after use)
|
|
* \param input buffer holding the input data
|
|
* \param output buffer holding the output data
|
|
*/
|
|
void des3_crypt_cbc( des3_context *ctx,
|
|
int mode,
|
|
int length,
|
|
unsigned char iv[8],
|
|
unsigned char *input,
|
|
unsigned char *output );
|
|
|
|
/*
|
|
* \brief Checkup routine
|
|
*
|
|
* \return 0 if successful, or 1 if the test failed
|
|
*/
|
|
int des_self_test( int verbose );
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* des.h */
|