Talk:Data Encryption Standard

Decryption. Has anyone an idea how to impplement this:
"Decryption is simply the inverse of encryption, follwing the same steps as above, but reversing the order in which the subkeys are applied."
Reverting the subkeys did not work --Walter Pachl 05:37, 22 July 2017 (UTC)

REXX decryption

Decryption. Has anyone an idea how to impplement this:
"Decryption is simply the inverse of encryption, follwing the same steps as above, but reversing the order in which the subkeys are applied."
Reverting the subkeys did not work --Walter Pachl 05:37, 22 July 2017 (UTC)