標題: An error-correcting stream cipher design with state-hopping architecture
作者: Yen, CH
Wu, BF
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: cryptography;stream cipher;error correction;channel coding;encryption
公開日期: 1-Jan-2005
摘要: A new architecture of stream cipher based oil state-hopping shift registers and a pseudorandom vector generator (PRVG) is introduced. The proposed Stream cipher merges secrecy coding and channel coding into one processing Step. It could be either a pure cryptosystem or a secrecy-channel coding by demand. Considered as cryptography, the PRVG generates pseudo random vectors which are treated as keystreams setting Lip the encryption scheme. This is different from the general concept in stream ciphers, state-hopping shift registers do not generate a pseudo random sequence but act as substitutions on plaintexts. Viewed as channel coding. the state-hopping shift registers play as the ones in convolution code and the PRVG generates a sequence of pseudorandom vector to determine the Trellis diagram. If the system acts as a pure cryptosystem. the decoding scheme is exactly the inverse of the encryption Scheme. When the error-correcting ability is chosen. a modified sequential decoding is proposed.
URI: http://hdl.handle.net/11536/25198
ISSN: 0253-3839
期刊: JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS
Volume: 28
Issue: 1
起始頁: 9
結束頁: 16
Appears in Collections:Articles


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