MMB (cipher)
In cryptography, MMB (Modular Multiplication-based Block cipher) is a block cipher designed by Joan Daemen as an improved replacement for the IDEA cipher. Modular multiplication is the central element in the design. Weaknesses in the key schedule were identified by Eli Biham, and this, together with the cipher's not having been designed to resist linear cryptanalysis, meant that other designs were pursued instead, such as 3-Way.
| General | |
|---|---|
| Designers | Joan Daemen |
| First published | 1993 |
| Derived from | IDEA |
| Successors | ABC |
| Cipher detail | |
| Key sizes | 128 bits |
| Block sizes | 128 bits |
| Structure | Substitution–permutation network |
| Rounds | 6 |
| Best public cryptanalysis | |
| Key recovery using 267 chosen plaintexts | |
MMB has a key size and block size of 128 bits.
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