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1. 发明授权

US07734045B2 Multifactor split asymmetric crypto-key with persistent key security 有权
标题翻译：具有持久密钥安全性的多因素拆分非对称密钥
公开(公告)号：US07734045B2
公开(公告)日：2010-06-08
申请号：US11381829
申请日：2006-05-05
申请人： Ravinderpal Singh Sandhu , Brett Jason Schoppert , Ravi Ganesan , Mihir Bellare , Colin Joseph Desa
发明人： Ravinderpal Singh Sandhu , Brett Jason Schoppert , Ravi Ganesan , Mihir Bellare , Colin Joseph Desa
IPC分类号： H04L9/00 , H04L29/06
CPC分类号： H04L9/302
摘要： A processor generates an asymmetric crypto-key, such as an RSA crypto-key, which is associated with the user and includes a private key and a public key. It computes a first key portion based on a stored random number generation function, which has one or more constants such as a salt and/or iteration count, and a first value of a constant, and a second key portion based on the computed first key portion and one of the private key and the public key. It additionally computes another first key portion based on the stored random number generation function and a second value of that constant, and another second key portion based on the computed other first key portion and the one key. The computed first and second key portions and the computed other first and second key portions form first and second splits of the one key of the asymmetric crypto-key.
摘要翻译：处理器生成与用户相关联并包括私钥和公共密钥的非对称加密密钥，例如RSA密钥。它基于存储的随机数生成函数来计算第一密钥部分，该函数具有一个或多个常数，例如盐和/或迭代计数，以及常数的第一值，以及基于计算出的第一密钥的第二密钥部分部分和私钥和公钥之一。另外基于所存储的随机数生成函数和该常数的第二值，另外基于计算的其他第一密钥部分和一个密钥另外计算第二密钥部分。所计算的第一和第二密钥部分和计算的其他第一和第二密钥部分形成非对称密钥的一个密钥的第一和第二拆分。

2. 发明授权

US07571471B2 Secure login using a multifactor split asymmetric crypto-key with persistent key security 有权
标题翻译：使用具有持久密钥安全性的多因素拆分非对称密钥进行安全登录
公开(公告)号：US07571471B2
公开(公告)日：2009-08-04
申请号：US11381878
申请日：2006-05-05
申请人： Ravinderpal Singh Sandhu , Brett Jason Schoppert , Ravi Ganesan , Mihir Bellare , Colin Joseph Desa
发明人： Ravinderpal Singh Sandhu , Brett Jason Schoppert , Ravi Ganesan , Mihir Bellare , Colin Joseph Desa
IPC分类号： H04L9/32
CPC分类号： H04L9/3218 , H04L9/0825 , H04L9/0863
摘要： A first network station encrypts a first message with a first key portion from a first split of a private or public key of a user's asymmetric crypto-key and transmits it during a network session. The second network station decrypts the transmitted encrypted first message with a second key portion from the first split of the one key of the asymmetric crypto-key to initially authenticate the user for access, during the session, to store information. The first network station also encrypts a second message with another first key portion from a second split of that one key, and subsequently transmits it during the same network session. The second network station decrypts the subsequently transmitted encrypted second message with another second key portion from the second split of that same one key to subsequently authenticate the user for access, during the same session, to other stored_information.
摘要翻译：第一网络站利用来自用户非对称密钥的私钥或公钥的第一次拆分的第一密钥部分加密第一消息，并在网络会话期间发送它。第二网络站利用来自非对称密钥的一个密钥的第一次拆分的第二密钥部分解密发送的加密第一消息，以在会话期间初始认证用户访问以存储信息。第一网络台还用来自该一个密钥的第二分组的另一个第一密钥部分来加密第二个消息，并且随后在相同的网络会话期间发送它。第二网络站利用来自相同一个密钥的第二次拆分的另一个第二密钥部分来解密随后发送的加密第二消息，随后在同一会话期间认证用户访问其他存储信息。

3. 发明授权

US07386720B2 Authentication protocol using a multi-factor asymmetric key pair 有权
标题翻译：使用多因素非对称密钥对的认证协议
公开(公告)号：US07386720B2
公开(公告)日：2008-06-10
申请号：US11055988
申请日：2005-02-14
申请人： Ravinderpal Singh Sandhu , Brett Jason Schoppert , Ravi Ganesan , Mihir Bellare , Colin Joseph Desa
发明人： Ravinderpal Singh Sandhu , Brett Jason Schoppert , Ravi Ganesan , Mihir Bellare , Colin Joseph Desa
IPC分类号： H04L9/00
CPC分类号： H04L9/3271 , H04L9/085
摘要： Techniques for user authentication based upon an asymmetric key pair having a public key and a split private key are provided. A first portion of the split private key is generated based upon multiple factors under control of the user. The factors include a password. A challenge is cryptographically combined with a first one of the multiple factors, but not the user password, to form a first message. The first message is transformed with the generated first portion to form a second message, which is then sent to an authentication entity. The sent second message is transformed to authenticate the user by proving direct verification of user control of the first factor.
摘要翻译：提供了基于具有公共密钥和分离私钥的非对称密钥对的用户认证技术。基于在用户的控制下的多个因素来生成分割私钥的第一部分。因素包括密码。挑战是加密地与多个因素中的第一个而不是用户密码相结合以形成第一个消息。用生成的第一部分来转换第一消息以形成第二消息，然后将其发送到认证实体。通过证明第一因素的用户控制的直接验证，转发所发送的第二消息来认证用户。

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