International Data Encryption Algorithm

In cryptography, the International Data Encryption Algorithm (IDEA) is a block cipher designed by Xuejia Lai and James Massey of ETH Zurich and was first described in 1991. The algorithm was intended as a replacement for the Data Encryption Standard. IDEA is a minor revision of an earlier cipher, PES (Proposed Encryption Standard); IDEA was originally called IPES (Improved PES).
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<algorithm, cryptography> (IDEA) A conventional encryption algorithm, written by Xuejia Lai and James Massey, in 1992.
It is a block cipher, considered to be the best and most secure available, and operates on 64-bit blocks with a 128 bit key.
It is used by Pretty Good Privacy.
(1996-03-07)