95 search results - page 6 / 19 » Improved Cryptanalysis of Rijndael |
IACR
2011
12 years 7 months ago
2011
We revisit meet-in-the-middle attacks on block ciphers and recent developments in meet-in-the-middle preimage attacks on hash functions. Despite the presence of a secret key in the...
DAGSTUHL
2007
13 years 8 months ago
2007
In this paper we give a specification of a new block cipher that can be called the Courtois Toy Cipher (CTC). It is quite simple, and yet very much like any other known block ciph...
IJNSEC
2006
13 years 7 months ago
2006
Recently, Yang et al. improved Yang and Shieh's two password authentication schemes to withstand Sun and Yeh's forgery attacks. However, Kim et al. pointed out that Yang...
FSE
1994
Springer
13 years 11 months ago
1994
Springer
In this paper we present an improvement of the differential attack on hash functions based on block ciphers. By using the specific properties of the collision attack on hash functi...
CSI
2007
13 years 7 months ago
2007
In 2002, Chien et al. proposed an efficient remote authentication scheme using smart cards, in which only few hashing operations are required. Later, Ku et al. gave an improved sc...