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    • 75. 发明申请
    • AGGREGATE SIGNATURE SCHEMES
    • 集体签字计划
    • US20080069347A1
    • 2008-03-20
    • US11852819
    • 2007-09-10
    • Daniel BrownScott Vanstone
    • Daniel BrownScott Vanstone
    • H04L9/14
    • H04L9/3066H04L9/3252H04L2209/805
    • An authenticated RFID system is provided that uses elliptic curve cryptography (ECC) to reduce the signature size and read/write times when compared to traditional public key implementations such as RSA. Either ECDSA or ECPVS can be used to reduce the signature size and ECPVS can be used to hide a portion of the RFID tag that contains sensitive product identifying information. As a result, smaller tags can be used or multiple signatures can be written at different stages in a manufacturing or supply chain. A key management system is used to distribute the verification keys and aggregate signature schemes are also provided for adding multiple signatures to the RFID tags, for example in a supply chain.
    • 提供了一种经过认证的RFID系统,与传统的公共密钥实现(如RSA)相比,使用椭圆曲线密码术(ECC)来减少签名大小和读/写时间。 ECDSA或ECPVS可以用于减小签名大小,并且ECPVS可用于隐藏包含敏感产品标识信息的RFID标签的一部分。 因此,可以使用较小的标签,或者可以在制造或供应链中的不同阶段写入多个签名。 密钥管理系统用于分发验证密钥,并且聚合签名方案也被提供用于向RFID标签添加多个签名,例如在供应链中。
    • 76. 发明申请
    • Custom static Diffie-Hellman groups
    • 自定义静态Diffie-Hellman组
    • US20070071237A1
    • 2007-03-29
    • US11272150
    • 2005-11-14
    • Daniel BrownRobert GallantScott Vanstone
    • Daniel BrownRobert GallantScott Vanstone
    • H04L9/30H04L9/00H04K1/00
    • G06F7/72G06F7/724G06F7/725G06F2207/7204H04L9/002H04L9/0841H04L9/3066H04L2209/26
    • Methods for choosing groups for a static Diffie-Hellman key agreement protocol to inhibit active attacks by an adversary are provided. In mod p groups, an even h is chosen of value approximately (9/16)(log2n)2, values r and n are determined using sieving and primality testing on r and n, and a value t is found to compute p=tn+1 wherein p is prime. In elliptic curve groups defined over a binary filed, a random curve is chosen, the number of points on the curve is counted and this number is checked for value of 2n wherein n is prime and n−1 meets preferred criteria. In elliptic curve groups defined over a prime field of order q, a value n=hr+1 is computed, wherein n is prime and n−1 meets preferred criteria, and a complex multiplication method is applied on n to produce a value q and an elliptic curve E defined over q and having an order n.
    • 提供了用于选择静态Diffie-Hellman密钥协商协议以抑制对手的主动攻击的组的方法。 在mod p组中,偶数h被选择为大约(9/16)(log 2)n 2),值r和n是使用筛选和原始测试来确定的 在r和n上,找到值t来计算p = tn + 1,其中p是素数。 在二进制字段中定义的椭圆曲线组中,选择随机曲线,对曲线上的点数进行计数,并检查2n的值,其中n是素数,n-1符合优选标准。 在序列q的质场上定义的椭圆曲线组中,计算值n = hr + 1,其中n是素数,n-1满足优选标准,并且在n上施加复乘法以产生值q和 在q上定义并具有n阶的椭圆曲线E.
    • 80. 发明申请
    • Systems and methods to facilitate rental transactions
    • 促进租赁交易的系统和方法
    • US20070027708A1
    • 2007-02-01
    • US11495198
    • 2006-07-28
    • Daniel BrownKevin Taylor
    • Daniel BrownKevin Taylor
    • G06Q99/00
    • G06Q10/02G06Q30/0645G06Q50/188
    • Systems and methods for facilitating rental of a good comprising storing a good identifier associated with the good in a product database, displaying product information associated with the good based on a geographical location of the good, receiving a rental request from the renter, and sending a contact information associated with the renter to a listing party at least in part based on the rental request. The rental request may be anonymous. An inquiry may be received from the renter and anonymized and sent to the listing party. An anonymous negotiation between a listing party and the renter may be conducted and the rental price and/or the rental term may be determined based on the anonymous negotiation.
    • 用于促进商品出租的系统和方法,包括将与商品相关联的良好标识符存储在产品数据库中,基于商品的地理位置显示与商品相关联的商品信息,从租赁者接收​​租赁请求,以及发送 至少部分地基于租用请求,将与承租人相关联的联系信息提供给上市方。 租赁请求可能是匿名的。 来自承租人的查询可以被匿名发送给上市。 可以进行上市方和承租人之间的匿名协商,并且可以基于匿名协商来确定租赁价格和/或租赁期限。