CS-Cipher
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| Designer(s): | Jacques Stern and Serge Vaudenay |
|---|---|
| First published: | 1998 |
| Key size(s): | 128 bits |
| Block size(s): | 64 bits |
| Structure: | Feistel network |
| Rounds: | 8 |
In cryptography, CS-Cipher (for Chiffrement Symétrique) is a block cipher invented by Jacques Stern and Serge Vaudenay in 1998. It was submitted to the NESSIE project, but was not selected.
The algorithm uses a key length between 0 and 128 bits (length must be a multiple of 8 bits). By default, the cipher uses 128 bits. It operates on blocks of 64 bits using an 8-round Feistel network and is optimized for 8-bit processors. The round function is based on the Fast Fourier transform and uses the binary expansion of e as a source of "nothing up my sleeve numbers".
[edit] References
- J. Stern, S. Vaudenay (1998). "CS-Cipher" (PostScript). Retrieved on 2007-02-15.
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