NewDES
Block cipher / From Wikipedia, the free encyclopedia
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In cryptography, NewDES is a symmetric key block cipher. It was created in 1984–1985 by Robert Scott as a potential DES replacement.
Quick Facts General, Designers ...
General | |
---|---|
Designers | Robert Scott |
First published | 1985 |
Cipher detail | |
Key sizes | 120 bits |
Block sizes | 64 bits |
Rounds | 17 |
Best public cryptanalysis | |
A related-key attack succeeds with 232 known plaintexts |
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Despite its name, it is not derived from DES and has quite a different structure. Its intended niche as a DES replacement has now mostly been filled by AES. The algorithm was revised with a modified key schedule in 1996 to counter a related-key attack; this version is sometimes referred to as NewDES-96.
In 2004, Scott posted some comments on sci.crypt reflecting on the motivation behind NewDES's design and what he might have done differently so as to make the cipher more secure.[1]