Patent ID: 7657030

Claim:
A method of generating a strong DES cryptographic key on a computing device, comprising the steps of: a) generating all possible hexadecimal values on the computing device; b) generating all possible combinations of two hexadecimal values on the computing device using the result of step (a), where one of the hexadecimal values in each two-hexadecimal value combination has odd parity; c) eliminating on the computing device, from the result of step (b), two hexadecimal value combinations E0, 01, F1, FE, 1F, 0B, 1E, and 0F; d) arranging on the computing device each two-hexadecimal value combination remaining after step (c) once in a user-definable order on a user-definable medium, alternating even and odd hexadecimal values; e) selecting on the computing device eight unique two-hexadecimal value combinations on the user-definable medium in a user-definable manner; and f) using on the computing device the result of step (e) as the DES cryptographic key.