decrypt(3) - phpMan

cmsutil (1)          - Performs basic cryptograpic operations, such as encryp...
Filter::decrypt (3pm) - template for a decrypt source filter
key_decryptsession (3) - interfaces to rpc keyserver daemon
mcrypt (3)           - encryption/decryption library
systemd-cryptsetup (8) - Full disk decryption logic
systemd-cryptsetup@.service (8) - Full disk decryption logic
xdecrypt (3)         - RFS password encryption