## CryptoDB

### Elad Barkan

#### Publications

Year
Venue
Title
2008
JOFC
2006
CRYPTO
2003
CRYPTO
2002
ASIACRYPT
2002
EPRINT
In this paper we ask the question what happens if we replace all the constants in Rijndael, including the replacement of the irreducible polynomial, the coefficients of the MixColumn operation, the affine transformation in the S box, etc. We show that such replacements can create new dual ciphers, which are equivalent to the original in all aspects. We present several such dual ciphers of Rijndael, such as the square of Rijndael, and dual ciphers with the irreducible polynomial replaced by primitive polynomials. We also describe another family of dual ciphers consisting of the logarithms of Rijndael. We then discuss self-dual ciphers, and extend our results to other ciphers.
2002
EPRINT
This paper is the full book of the 240 dual ciphers of Rijndael, in which only the constants differ from Rijndael. See: In How Many Ways Can You Write Rijndael?'', http://eprint.iacr.org.

#### Coauthors

Eli Biham (6)
Nathan Keller (2)
Adi Shamir (1)