Invention Grant
- Patent Title: Communication apparatus, digital signature issuance method and apparatus, and digital signature transmission method
- Patent Title (中): 通信装置，数字签发方式和装置以及数字签名传输方法
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Application No.: US11038176Application Date: 2005-01-21
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Publication No.: US08392716B2Publication Date: 2013-03-05
- Inventor: Kazuomi Oishi
- Applicant: Kazuomi Oishi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2004-013093 20040121
- Main IPC: H04L9/32
- IPC: H04L9/32
Abstract:
An initiator shares y_ir with a responder, calculates HASH_I on the basis of y_ir, and sends HASH_I to an IKE proxy server. The initiator receives a digital signature SIG_S generated for HASH_I and the address of the initiator from the IKE proxy server and sends the digital signature SIG_S to the responder.
Public/Granted literature
Information query
