When the network is homogeneous, choosing the cipher type for a packet telephony application is simple. It is clear that stream ciphers perform better than block ciphers over landline, circuit-switched networks, since loss is negligible in these networks but corruption is not. Likewise, it is also clear that block ciphers perform better than stream ciphers over landline, packet-switched network...

The family of stream ciphers MICKEY (which stands for Mutual Irregular Clocking KEYstream generator) is aimed at resource-constrained hardware platforms. It is intended to have low complexity in hardware, while providing a high level of security. It uses irregular clocking of shift registers, with some novel techniques to balance the need for guarantees on period and pseudorandomness against th...

Time-memory-data (TMD) trade-off attack is a wellstudied technique that has been applied on many stream and block ciphers. Current TMD attacks by Biryukov-Shamir (BSTMD), Hong-Sarkar (HS-TMD) and Dunkelman-Keller (DKTMD) has been applied to ciphers like Grain-v1 and AES-192/256 modes of operation to break them with online complexity faster than exhaustive search. However, there is still a limit...

The cipher systems based on Cellular Automata proposed by Nandi et al are a ne and are insecure Index Terms Cryptography block ciphers stream ciphers cellular automata

Fast correlation attacks have considerably evolved since their first appearance. They have lead to new design criteria of stream ciphers, and have found applications in other areas of communications and cryptography. In this paper, a review of the development of fast correlation attacks and their implications on the design of stream ciphers over the past two decades is given.

A fault attack is a powerful cryptanalytic tool which can be applied to many types of cryptosystems which are not vulnerable to direct attacks. The research literature contains many examples of fault attacks on public key cryptosystems and block ciphers, but surprisingly we could not find any systematic study of the applicability of fault attacks to stream ciphers. Our goal in this paper is to ...

In 1980 Hellman introduced a general technique for breaking arbitrary block ciphers with N possible keys in time T and memory M related by the tradeoff curve TM = N for 1 ≤ T ≤ N . Recently, Babbage and Golic pointed out that a different TM = N tradeoff attack for 1 ≤ T ≤ D is applicable to stream ciphers, where D is the amount of output data available to the attacker. In this paper we show tha...