1 /* header for the des routines that we will use */ 2 3 typedef unsigned char byte, DesData[ 8], IdeaData[16]; 4 #if 0 5 typedef unsigned long word, DesKeys[32]; 6 #else 7 #define DesKeys des_key_schedule 8 #endif 9 10 #define DES_DECRYPT 0 11 #define DES_ENCRYPT 1 12 13 #if 0 14 extern void des_fixup_key_parity(); /* (DesData *key) */ 15 extern int des_key_sched(); /* (DesData *key, DesKeys *m) */ 16 extern int des_ecb_encrypt(); /* (DesData *src, *dst, DesKeys *m, int mode) */ 17 extern int des_cbc_encrypt(); /* (char *src, *dst, int length, 18 DesKeys *m, DesData *init, int mode) */ 19 #endif 20 21 /* public key routines */ 22 /* functions: 23 genkeys(char *public, char *secret) 24 common_key(char *secret, char *public, desData *deskey) 25 where 26 char public[HEXKEYBYTES + 1]; 27 char secret[HEXKEYBYTES + 1]; 28 */ 29 30 #define HEXMODULUS "d4a0ba0250b6fd2ec626e7efd637df76c716e22d0944b88b" 31 #define HEXKEYBYTES 48 32 #define KEYSIZE 192 33 #define KEYBYTES 24 34 #define PROOT 3 35 36 extern void genkeys(char *public, char *secret); 37 extern void common_key(char *secret, char *public, IdeaData *common, 38 DesData *deskey); 39 extern void pk_encode(char *in, char *out, DesData *deskey); 40 extern void pk_decode(char *in, char *out, DesData *deskey); 41 42