| #ifndef _DES_H |
| #define _DES_H |
| |
| #ifndef uint8 |
| #define uint8 unsigned char |
| #endif |
| |
| #ifndef uint32 |
| #define uint32 unsigned long int |
| #endif |
| |
| typedef struct |
| { |
| uint32 esk[32]; /* DES encryption subkeys */ |
| uint32 dsk[32]; /* DES decryption subkeys */ |
| } |
| des_context; |
| |
| typedef struct |
| { |
| uint32 esk[96]; /* Triple-DES encryption subkeys */ |
| uint32 dsk[96]; /* Triple-DES decryption subkeys */ |
| } |
| des3_context; |
| |
| int des_set_key( des_context *ctx, uint8 key[8] ); |
| void des_encrypt( des_context *ctx, uint8 input[8], uint8 output[8] ); |
| void des_decrypt( des_context *ctx, uint8 input[8], uint8 output[8] ); |
| |
| int des3_set_2keys( des3_context *ctx, uint8 key1[8], uint8 key2[8] ); |
| int des3_set_3keys( des3_context *ctx, uint8 key1[8], uint8 key2[8], |
| uint8 key3[8] ); |
| |
| void des3_encrypt( des3_context *ctx, uint8 input[8], uint8 output[8] ); |
| void des3_decrypt( des3_context *ctx, uint8 input[8], uint8 output[8] ); |
| |
| #endif /* des.h */ |