FOX (algorithm)
| FOX | |
|---|---|
 |
|
| developer | Serge Vaudenay , Pascal Junod |
| Released | 2003 |
| Derived from | IDEA |
| Key length | 128 or 256 bits |
| Block size | 64 or 128 bit |
| structure | Lai-Massey scheme |
| Round | 16 |
| Best known cryptanalysis | |
| Integral cryptanalysis with a time complexity of 2 237.4 for 7 rounds of NXT-64 and with a time complexity of 2 205.6 for 5 rounds of NXT-128 | |
FOX , also known as IDEA NXT , is a symmetric encryption algorithm that was co-developed by Serge Vaudenay and Pascal Junod . It is the successor to the IDEA and was published in 2003.
FOX is a block cipher with a block size of 64 or 128 bits . It works with key lengths of 128 or 256 bits. FOX is a very fast but patented algorithm. However, there are legal doubts as to whether patent protection is even valid in the European Union .
Web links
- FOX: a new family of encryption algorithms (English; PDF file; 215 kB)
- FOX algorithm implementation - a hardware design approach (English; PDF file; 178 kB)