The circuit designing based on the neural network combining stream ciphers;

Cryptanalysis for stream cipher based on evolutionary computation;

Study on encryption methods by DES and RSA and stream cipher;

Research of sequence cipher algorithm based on chaos;

About correlation attack on sequence cipher;

The reconfigurable processing architecture design of the FSR+NLF type sequence cipher over GF(2)

Researches on Decimation Attack of Stream Ciphers;

Pseudorandom sequences have wide applications in spread-spectrum communication systems, code division multiple-access systems, ranging systems, software testing, radar systems, stream ciphers and public cryptosystems.

The proposed approach utilizes stream ciphers to encrypt selective data.

In this paper,we give some properties of different ial sequence,and discuss the applications of differential se-quence in sequence cryptology.

After analyzing the source components of word oriented stream cipher, we classify them into four categories according to different styles and examine the characteristic of each with discussing their security and implementation issues.