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1. 发明授权

US07397917B2 Method and apparatus for generating a cryptographic key 有权
标题翻译：用于生成加密密钥的方法和装置
公开(公告)号：US07397917B2
公开(公告)日：2008-07-08
申请号：US10613750
申请日：2003-07-03
申请人： Liqun Chen , David Soldera , Keith Alexander Harrison
发明人： Liqun Chen , David Soldera , Keith Alexander Harrison
IPC分类号： H04K1/00 , H04L9/00 , H04L9/30
CPC分类号： H04L9/3013 , H04L9/3073 , H04L9/321
摘要： A method and apparatus are provided for generating a cryptographic key from multiple data sets each related to a respective association of a trusted party and user identity. The cryptographic key is, for example, one of an encryption key, a decryption key, a signature key and a verification key, and is preferably generated by applying Tate or Weil bilinear mappings to the data sets. At least two of the data sets may relate to different user identities and/or different trusted authorities. Where multiple trusted authorities are involved, these authorities may be associated with different elements to which the bilinear mapping can be applied, each trusted authority having an associated public key formed from its associated element and a secret of that trusted authority.
摘要翻译：提供了一种方法和装置，用于从与受信任方和用户身份的相应关联相关联的多个数据集中生成密码密钥。加密密钥例如是加密密钥，解密密钥，签名密钥和验证密钥之一，并且优选地通过将Tate或Weil双线性映射应用于数据集来生成。数据集中的至少两个可以涉及不同的用户身份和/或不同的可信权限。在涉及多个受信任的机构的情况下，这些权限可以与可以应用双线性映射的不同的元素相关联，每个受信任的机构具有由其相关联的元素形成的相关联的公共密钥和该信任授权的秘密。

2. 发明授权

US07650494B2 Method and apparatus for use in relation to verifying an association between two parties 有权
标题翻译：用于验证双方之间关联的方法和装置
公开(公告)号：US07650494B2
公开(公告)日：2010-01-19
申请号：US10613522
申请日：2003-07-02
申请人： Liqun Chen , Keith Alexander Harrison , David Soldera
发明人： Liqun Chen , Keith Alexander Harrison , David Soldera
IPC分类号： H04L9/00
CPC分类号： G06F7/725 , H04L9/3013 , H04L9/3073 , H04L9/321
摘要： A first party has a first and a second cryptographic key. A second party has a third and a fourth cryptographic key, the fourth cryptographic key being derived from the first and third cryptographic keys thereby providing an association between the parties. To enable a third party to verify the existence of an association between the first and second parties, the second party generates a number that in association with the second cryptographic key, the third cryptographic key and the fourth cryptographic key define a first cryptographic parameter, a second cryptographic parameter and a third cryptographic parameter respectively. By using these parameters and the second and third cryptographic keys, the third party can verify if the first and second parties are associated.
摘要翻译：第一方具有第一和第二密码密钥。第二方具有第三和第四密码密钥，第四密码密钥从第一和第三密码密钥导出，从而提供双方之间的关联。为了使第三方能够验证第一方和第二方之间的关联的存在，第二方生成与第二密码密钥相关联的号码，第三密码密钥和第四加密密钥定义第一密码参数，第二密码参数和第三密码参数。通过使用这些参数和第二和第三密码密钥，第三方可以验证第一方和第二方是否相关联。

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