Security Analysis on Block Cipher XSB

Security Analysis of the Block Cipher Camellia

The Security of Cipher Block Chaining

The Cipher Block Chaining { Message Authentication Code (CBC MAC) speciies that a message x = x 1 x m be authenticated among parties who share a secret key a by tagging x with a preex of f (m) a (x) def = f a (f a (f a (f a (x 1)x 2) x m?1)x m) ; where f is some underlying block cipher (eg. f = DES). This method is a pervasively used international and U.S. standard. We provide its rst formal ju...

The Security of the RC6TM Block Cipher

This report presents a preliminary analysis of the security o ered by the RC6 TM block cipher. RC6 is an evolutionary improvement of RC5, designed to meet the requirements of the Advanced Encryption Standard (AES). Our analysis demonstrates that RC6 is highly resistant to di erential and linear cryptanalytic attack, which are currently the two most e ective analytical attacks on block ciphers. ...

Beyond-Birthday-Bound Security Based on Tweakable Block Cipher

This paper studies how to build a 2n-bit block cipher which is hard to distinguish from a truly random permutation against attacks with q ≈ 2 queries, i.e., birthday attacks. Unlike previous approaches using pseudorandom functions, we present a simple and efficient proposal using a tweakable block cipher as an internal module. Our proposal is provably secure against birthday attacks, if underly...

Differential Fault Analysis on Block Cipher Piccolo

Piccolo is a 64-bit block cipher suitable for the constrained environments such as wireless sensor network environments. In this paper, we propose differential fault analysis on Piccolo. Based on a random byte fault model, our attack can recover the secret key of Piccolo-80 by using an exhaustive search of 2 and six random byte fault injections on average. It can be simulated on a general PC wi...