The effectiveness of symbolic integer splitting method over both synchronous stream ciphers and perfectly secret ciphers

Stream ciphers and the eSTREAM project

Stream ciphers are an important class of symmetric cryptographic algorithms. The eSTREAM project contributed significantly to the recent increase of activity in this field. In this paper, we present a survey of the eSTREAM project. We also review recent time/memory/data and time/memory/key trade-offs relevant for the generic attacks on stream ciphers.

Resynchronization Weaknesses in Synchronous Stream Ciphers

In some applications for synchronous stream ciphers, the risk of loss of synchroniration cannot be eliminated completely. In these cases frequent rcsynchroniration or resynduonisation upon request may be necessary. In the paper it is shown that this can lead to significant deterioration of the cryptographic security. A powerful general attack on nonlinearly filtered linear (over Z,) systems is ...

Stream ciphers

Block Ciphers and Stream Ciphers: The State of the Art

In these lecture notes we survey the state of the art in symmetric key encryption, in particular in the block ciphers and stream ciphers area. The areas of symmetric key encryption has been very active in the last five years due to growing interest from academic and industry research, standardization efforts like AES, NESSIE and CRYPTREC, as well as due to ease of government control over export...

Stream Ciphers