NUSH
Block cipher
From Wikipedia, the free encyclopedia
In cryptography, NUSH is a block cipher invented by Anatoly Lebedev and Alexey Volchkov for the Russian company LAN Crypto. It was submitted to the NESSIE project, but was not selected.
Designers
- Anatoly Lebedev
- Alexey Volchkov
First published2000
Key sizes128, 192, or 256 bits
Block sizes64, 128, or 256 bits
| General | |
|---|---|
| Designers |
|
| First published | 2000 |
| Cipher detail | |
| Key sizes | 128, 192, or 256 bits |
| Block sizes | 64, 128, or 256 bits |
| Rounds | 9, 17, or 33 |
| Best public cryptanalysis | |
| A linear attack faster than exhaustive search has been found.[1] | |
NUSH exists in several different variants, using keys of 128, 192, or 256 bits, and a block size of 64, 128, or 256 bits. The number of rounds is 9, 17, or 33, depending on the block size. The algorithm uses key whitening, but no S-boxes; the only operations it uses are AND, OR, XOR, modular addition, and bit rotation.
It has been shown that linear cryptanalysis can break NUSH with less effort than a brute force attack.[2]
