See also: Cryptography | Algorithm | Cipher

Acronym: International Data Encryption Algorithm

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Adapted from kremlin:

Generally regarded to be one of the best and most secure block algorithm available to the public today, IDEA is a symmetric cipher algorithm used to encrypt and decrypt data. It utilizes a 128-bit key, a 64-bit blocksize and is designed to be resistant to differential cryptanalysis. Unfortunately, IDEA is patented; licensing information can be obtained from Ascom.

Developed in Zurich, Switzerland by Xuejia Lai and James Massey.

More on IDEA from Wikipedia.

IDEA is also the name of a Java IDE by the company IntelliJ.

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