Method and Apparatus for Ensuring Privacy in Communications Between Parties
    1.
    发明申请
    Method and Apparatus for Ensuring Privacy in Communications Between Parties 有权
    确保缔约方之间沟通隐私的方法和装置

    公开(公告)号:US20080187137A1

    公开(公告)日:2008-08-07

    申请号:US11883879

    申请日:2006-02-10

    IPC分类号: H04L9/30 H04L9/22 H04L9/28

    摘要: A method of improving privacy by hiding, in an ordered sequence of messages M[x(1), D(1)], M[x(2), D(2)], etc, communicated between a first and at least one second party sharing a key k, metadata x(i) descriptive of message processing, wherein D(i) denotes payload data. The method comprises the first and the second party agreeing on a pseudo random mapping depending on a shared key k, Fk, mapping at least x(i) to y(i), and the first party modifying the messages by replacing x(i) by y(i) in each message M(x(i), D(i)). The first party then transmits the modified messages maintaining their original order, and on reception of a message M(y(m), D), the second party uses a mapping Gk to retrieve position m of received value and the original value x(m).

    摘要翻译: 一种通过以有序的消息M [x(1),D(1)],M [x(2),D(2)]等的顺序隐藏来提高隐私的方法,在第一和至少一个 共享密钥k的第二方,元数据x(i)描述消息处理,其中D(i)表示有效载荷数据。 该方法包括第一方和第二方根据共享密钥k至少映射至少x(i)至y(i)的伪随机映射,并且第一方修改 通过在每个消息M(x(i),D(i))中将x(i)替换y(i)的消息。 第一方然后发送修改的消息维持其原始顺序,并且在接收消息M(y(m),D)时,第二方使用映射G 来检索所接收的位置m 值和原始值x(m)。

    Method and apparatus for ensuring privacy in communications between parties
    2.
    发明授权
    Method and apparatus for ensuring privacy in communications between parties 有权
    确保双方之间沟通的隐私的方法和设备

    公开(公告)号:US08837729B2

    公开(公告)日:2014-09-16

    申请号:US11883879

    申请日:2006-02-10

    摘要: A method of improving privacy by hiding, in an ordered sequence of messages M[x(1), D(1)], M[x(2), D(2)], etc, communicated between a first and at least one second party sharing a key k, metadata x(i) descriptive of message processing, wherein D(i) denotes payload data. The method comprises the first and the second party agreeing on a pseudo random mapping depending on a shared key k, Fk, mapping at least x(i) to y(i), and the first party modifying the messages by replacing x(i) by y(i) in each message M(x(i), D(i)). The first party then transmits the modified messages maintaining their original order, and on reception of a message M(y(m), D), the second party uses a mapping Gk to retrieve position m of received value and the original value x(m).

    摘要翻译: 一种通过以有序的消息M [x(1),D(1)],M [x(2),D(2)]等的顺序隐藏来提高隐私的方法,在第一和至少一个 共享密钥k的第二方,元数据x(i)描述消息处理,其中D(i)表示有效载荷数据。 该方法包括第一方和第二方根据共享密钥k,F k映射到至少x(i)至y(i)的伪随机映射,并且第一方通过替换x(i)来修改消息, 在每个消息M(x(i),D(i))中由y(i)表示。 第一方然后发送修改的消息保持其原始顺序,并且在接收到消息M(y(m),D)时,第二方使用映射G k来检索接收值的位置m,并且原始值x )。