include odd parity, for use within the DES routines. The three DES keys
are then used to encrypt themselves in 3-DES CBC mode, and the result is
parity adjusted. Any weak or semi-weak DES keys are first strengthened
-by eXclusive-ORing the first octet with the value 0xF0 prior to their
-use.
+by eXclusive-ORing the key with the constant 0x00000000000000F0 prior to
+its use.
The n-fold operation used by the string-to-key algorithm
replicates the input bit array X until its length is the least common