From en- "in; into" + L. crypt, from Gk. kryptos "hidden, concealed, secret" + → -tion.
Darnahândan, from dar-, → in- + nahândan "to hide, conceal," from nahân "concealed, hid; clandestine;" Mid.Pers. nihân "secrecy, a secret place, a hiding place," nihânik "concealed;" Av. niδāti- "deposing, deposit."
A process that transforms data into another format in such a way that only specific individual(s) can reverse the transformation. Encryption is for maintaining data confidentiality. See also → decryption and → encoding.