- 专利标题: Method and apparatus for generating a stream cipher
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申请号: US420710申请日: 1999-10-19
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公开(公告)号: US6148053A公开(公告)日: 2000-11-14
- 发明人: Fatih M. Ozluturk
- 申请人: Fatih M. Ozluturk
- 申请人地址: DE Wilmington
- 专利权人: InterDigital Technology Corporation
- 当前专利权人: InterDigital Technology Corporation
- 当前专利权人地址: DE Wilmington
- 主分类号: H03K3/84
- IPC分类号: H03K3/84 ; H04L9/06 ; H04L9/18 ; H04L9/22 ; H04L9/26 ; H04L23/00
摘要:
A code division multiple access (CDMA) is a type of spread-spectrum communication system having a plurality of subscriber units and at least one base station. In order for a first subscriber unit to communicate with a second subscriber unit, a transmitter unit of the first subscriber unit imprints a unique code upon transmission and the second subscriber unit includes a receiver, which uses the code to decode the transmission. In addition, each transmitter with a CDMA communication system includes a stream cipher generator for enciphering the voice and data communications. Each receiver within a CDMA communication system contains an identical or similar stream cipher generator, which is used to decipher the received enciphered communication. The present invention relates to a stream cipher generator having a plurality of linear feedback shift registers to produce a stream cipher for increasing security using ciphered messages.
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