2 * lib/des425/key_parity.c
4 * Copyright 1989, 1990 by the Massachusetts Institute of Technology.
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24 * These routines check and fix parity of encryption keys for the DES
27 * Under U.S. law, this software may not be exported outside the US
28 * without license from the U.S. Commerce department.
30 * These routines form the library interface to the DES facilities.
38 * des_fixup_key_parity: Forces odd parity per byte; parity is bits
39 * 8,16,...64 in des order, implies 0, 8, 16, ...
43 des_fixup_key_parity(key)
44 register mit_des_cblock key;
46 mit_des_fixup_key_parity(key);
50 * des_check_key_parity: returns true iff key has the correct des parity.
51 * See des_fix_key_parity for the definition of
55 des_check_key_parity(key)
56 register mit_des_cblock key;
58 return(mit_des_check_key_parity(key));