发明授权
US07433474B2 Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys
有权
使用其他密钥加密和解密的密钥对数据进行加密和解密的方法和装置
- 专利标题： Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys
- 专利标题（中）： 使用其他密钥加密和解密的密钥对数据进行加密和解密的方法和装置
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申请号： US10035311申请日： 2002-01-04
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公开(公告)号： US07433474B2公开(公告)日： 2008-10-07
- 发明人: Takehisa Kato , Naoki Endoh , Hiroaki Unno , Tadashi Kojima , Koichi Hirayama
- 申请人： Takehisa Kato , Naoki Endoh , Hiroaki Unno , Tadashi Kojima , Koichi Hirayama
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Pillsbury Winthrop Shaw Pittman, LLP
- 优先权： JP8-170399 19960628; JP9-136709 19970527
- 主分类号： H04L9/00
- IPC分类号： H04L9/00
摘要：
On a recording medium, first information obtained by enciphering data with the first key and second information obtained by enciphering the first key with each of the predetermined second keys are recorded. A deciphering method is characterized by comprising the steps of inputting the first and second information, deciphering the first key using at least one of the second keys, determining by a specific method that the obtained first key is correct, and then deciphering the data using the first key to obtain the data.
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