#define EN0 0 /* MODE == encrypt */
#define DE1 1 /* MODE == decrypt */
-extern void deskey(unsigned char *, int);
+void deskey(unsigned char *, int);
/* hexkey[8] MODE
* Sets the internal key register according to the hexadecimal
* key contained in the 8 bytes of hexkey, according to the DES,
* for encryption or decryption according to MODE.
*/
-extern void usekey(unsigned long *);
+void usekey(unsigned long *);
/* cookedkey[32]
* Loads the internal key register with the data in cookedkey.
*/
-extern void cpkey(unsigned long *);
+void cpkey(unsigned long *);
/* cookedkey[32]
* Copies the contents of the internal key register into the storage
* located at &cookedkey[0].
*/
-extern void des(unsigned char *, unsigned char *);
+void des(unsigned char *, unsigned char *);
/* from[8] to[8]
* Encrypts/Decrypts (according to the key currently loaded in the
* internal key register) one block of eight bytes at address 'from'