SDES Key Schedule

Hoe to key generation

The 10-bit key is transformed into two 8-bit sub-keys K1 and K2.
Example:

P10 = { 3, 5, 2, 7, 4, 10, 1, 9, 8, 6}

P8 = { 6, 3, 7, 4, 8, 5, 10, 9}

K =     10100 00010

P10     10000 01100

LS-1    00001 11000  ->  P8  ->  K1 = 1010 0100

LS-2    00100 00011  ->  P8  ->  K2 = 0100 0011