Weak Keys for IDEA

Large classes of weak keys have been found for the block cipher algorithm IDEA, previously known as IPES [2]. IDEA has a 128bit key and encrypts blocks of 64 bits. For a class of 223 keys IDEA exhibits a linear factor. For a certain class of 235 keys the cipher has

• Type: Conference
• Year: 1993
• Where: CRYPTO
• Authors: Joan Daemen, René Govaerts, Joos Vandewalle
• Keywords: Cipher Algorithm Idea, CRYPTO 1993, Cryptology, Keys Idea, Weak Keys