发明授权
US06980658B1 Method and apparatus for encrypting transmissions in a communication system
有权
用于在通信系统中加密传输的方法和装置
- 专利标题： Method and apparatus for encrypting transmissions in a communication system
- 专利标题（中）： 用于在通信系统中加密传输的方法和装置
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申请号： US09676036申请日： 2000-09-28
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公开(公告)号： US06980658B1公开(公告)日： 2005-12-27
- 发明人: Ramin Rezaiifar , Roy F. Quick, Jr. , Paul Williamson , Jun Wang , Edward G. Tiedemann, Jr.
- 申请人： Ramin Rezaiifar , Roy F. Quick, Jr. , Paul Williamson , Jun Wang , Edward G. Tiedemann, Jr.
- 申请人地址： US CA San Diego
- 专利权人： Qualcomm Incorporated
- 当前专利权人： Qualcomm Incorporated
- 当前专利权人地址： US CA San Diego
- 代理商 Philip W. Wadsworth; Sandip S. (Nicky) Minhas; Jae-Hee Choi
- 主分类号： H04L9/08
- IPC分类号： H04L9/08 ; G06F1/04 ; G06F1/06 ; G06F1/08 ; G06F1/12 ; G06F13/42 ; G06F21/00 ; H04K1/00 ; H04L1/00 ; H04L5/00 ; H04L7/00 ; H04L9/00 ; H04L9/12 ; H04L9/18 ; H04L9/32 ; H04L12/22 ; H04L29/06 ; H04W12/00 ; H04W12/02 ; H04W12/06 ; H04W12/10 ; H04W12/12
摘要：
Method and apparatus for encrypting transmission traffic at separate protocol layers L1, L2, and L3so that separate encryption elements can be assigned to separate types of transmission traffic, which allows the implementation of different levels of encryption according to service requirements. Encryption elements use variable value inputs, called crypto-syncs, along with semi-permanent encryption keys to protect from replay attacks from rogue mobile stations. Since crypto-sync values vary, a method for synchronizing crypto-syncs at the mobile station and base station is also presented.
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