/*
 * This DES implementation is used for the purpose of decrypting
 * Pirelli's factory IMEI record; it has been lifted out of TI's
 * reference GSM firmware source.
 */

#ifndef CL_DES_H
#define CL_DES_H

/**********************************************************************************/

#define CL_DES_BUFFER_SIZE   8
#define CL_DES_KEY_SIZE      8
#define CL_DES_ENCRYPTION    1
#define CL_DES_DECRYPTION    2

/*
+------------------------------------------------------------------------------
| Function    : cl_des
+------------------------------------------------------------------------------
| Description : The function performs DES encrypting or decrypting
|
| Parameters  : inMsgPtr   : pointer to input message M. The length of message
|                            has to be min. 8 bytes e.g. M = 0123456789abcdef
|               desKeyPtr  : pointer to DES key. Length has to be 8 bytes
|                outMsgPtr : output encrypted/decrypted message. The length is 8 b.
|                     code : CL_DES_ENCRYPTION, CL_DES_DECRYPTION
+------------------------------------------------------------------------------
*/
extern void cl_des(unsigned char *inMsgPtr, unsigned char *desKeyPtr,
		   unsigned char *outMsgPtr, unsigned char code);


/**********************************************************************************/

#endif /* CL_DES_H */