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    Accelerated Verification of Digital Signatures and Public Keys
    2.
    发明申请
    Accelerated Verification of Digital Signatures and Public Keys 审中-公开
    加速验证数字签名和公钥

    公开(公告)号：US20140344579A1

    公开(公告)日：2014-11-20

    申请号：US14318313

    申请日：2014-06-27

    Applicant: Certicom Corp.

    Inventor： Marinus STRUIK ,  Daniel Richard L. BROWN ,  Scott Alexander VANSTONE ,  Robert Philip GALLANT ,  Adrian ANTIPA ,  Robert John LAMBERT

    IPC: H04L9/30 ,  H04L9/32

    CPC classification number: H04L9/3066 ,  G06F7/725 ,  H04L9/30 ,  H04L9/3252

    Abstract: Accelerated computation of combinations of group operations in a finite field is provided by arranging for at least one of the operands to have a relatively small bit length. In a elliptic curve group, verification that a value representative of a point R corresponds the sum of two other points uG and vG is obtained by deriving integers w,z of reduced bit length and that v=w/z. The verification equality R=uG+vQ may then be computed as −zR+(uz mod n)+wQ=O with z and w of reduced bit length This is beneficial in digital signature verification where increased verification can be attained.

    Abstract translation: 通过将至少一个操作数布置成具有相对较小的比特长度来提供有限域中的组操作的组合的加速计算。 在椭圆曲线组中，验证表示点R的值对应于两个其他点uG和vG的和是通过导出减小位长度的整数w，z以及v = w / z获得的。 然后，验证等式R = uG + vQ可以被计算为-zR +（uz mod n）+ wQ = 0，其中z和w为减少的比特长度这对于可以获得增加的验证的数字签名验证是有益的。

    Method and Apparatus for Encoding Security Status Information
    3.
    发明申请
    Method and Apparatus for Encoding Security Status Information 审中-公开

    公开(公告)号：US20180367512A1

    公开(公告)日：2018-12-20

    申请号：US16113518

    申请日：2018-08-27

    Applicant: Certicom Corp.

    Inventor： Marinus STRUIK

    IPC: H04L29/06 ,  H04L1/18 ,  H04L12/801 ,  H04W56/00 ,  H04W12/04 ,  H04L29/08 ,  H04W12/02 ,  H04W4/12 ,  H04W24/00 ,  H04W28/04 ,  H04W28/06

    Abstract: A method of transmitting messages from a sender to a recipient over a wireless channel, the messages including a sequence counter and a frame counter. The method comprises establishing initial values of the sequence counter and the frame counter at the sender. Initial values of the frame counter and the sequence counter are provided to the recipient. The sender sends compressed messages including the value of the sequence counter and not the frame counter and monitors for an acknowledgement of receipt by the recipient. When no acknowledgment is received, the sender sends uncompressed messages until an acknowledgement of receipt is received from the recipient. The sequence counter is incremented and the next value of the frame counter is established as the integer next larger than previous value of the frame counter which is congruent to the sequence counter modulo 256.

    KEY AGREEMENT AND TRANSPORT PROTOCOL
    7.
    发明申请
    KEY AGREEMENT AND TRANSPORT PROTOCOL 有权
    主要协议和运输协议

    公开(公告)号：US20140032911A1

    公开(公告)日：2014-01-30

    申请号：US14039186

    申请日：2013-09-27

    Applicant: Certicom Corp.

    Inventor： Marinus STRUIK

    IPC: H04L9/08

    CPC classification number: H04L9/0838 ,  G06F7/725 ,  H04L9/0844

    Abstract: A key establishment protocol includes the generation of a value of cryptographic function, typically a hash, of a session key and public information. This value is transferred between correspondents together with the information necessary to generate the session key. Provided the session key has not been compromised, the value of the cryptographic function will be the same at each of the correspondents. The value of the cryptographic function cannot be compromised or modified without access to the session key.

    Abstract translation: 密钥建立协议包括生成会话密钥和公共信息的加密函数的值，通常是散列值。 该值在通讯者之间传送，以及生成会话密钥所需的信息。 如果会话密钥尚未被泄露，则密码功能的值在每个记者端都是相同的。 加密功能的值不能在不访问会话密钥的情况下被破坏或修改。

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