INTERNATIONAL DATA ENCRYPTION ALGORITHM (IDEA) ? A TYPICAL ILLUSTRATION

[摘要] There are several symmetric and asymmetric data encryption algorithms. IDEA (International Data Encryption Algorithm) is one of the strongest secret-key block ciphers. In this article, I try to represent the existing IDEA algorithm in a different way. In the following illustration, we would see how the encryption can be expressed in a simpler way.

[关键词] Round;Output Transformation;Sub-Key;Symmetric Key Algorithm.