Methods and apparatuses for providing blind digital signatures using curve-based cryptography
    1.
    发明申请
    Methods and apparatuses for providing blind digital signatures using curve-based cryptography 审中-公开
    使用基于曲线的加密技术提供盲人数字签名的方法和装置

    公开(公告)号:US20050018851A1

    公开(公告)日:2005-01-27

    申请号:US10609261

    申请日:2003-06-26

    IPC分类号: H04L9/32 H04L9/00

    CPC分类号: H04L9/3257

    摘要: Methods and apparatuses are provided for generating blind digital signatures using curve-based cryptography techniques. One exemplary method includes establishing parameter data for use with signature generating logic that encrypts data based on a Jacobian of at least one curve. Here, the parameter data causes the signature generating logic to select at least one Gap Diffie-Hellman (GDH) group of elements relating to the curve. The method also includes receiving first data that is to be blindly signed, determining private key data and corresponding public key data using the signature generating logic, and generating second data by signing the first data with the private key data using the signature generating logic. The second data includes the corresponding blind digital signature. In other implementations, the method may also include having additional logic, for example, in one or more other devices, determine if the blind digital signature is valid.

    摘要翻译: 提供了使用基于曲线的加密技术来产生盲数字签名的方法和装置。 一种示例性方法包括建立用于与基于至少一条曲线的雅可比数据加密数据的签名生成逻辑一起使用的参数数据。 这里,参数数据使得签名生成逻辑选择与该曲线相关的元素的至少一个Gap Diffie-Hellman(GDH)组。 该方法还包括接收将被盲签名的第一数据,使用签名生成逻辑确定私钥数据和相应的公开密钥数据,以及通过使用签名生成逻辑与私钥数据签名第一数据来生成第二数据。 第二数据包括相应的盲数字签名。 在其他实现中,该方法还可以包括具有例如在一个或多个其他设备中的附加逻辑,确定盲数字签名是否有效。

    DYNAMIC CACHE REBINDING OF PROCESSED DATA
    2.
    发明申请
    DYNAMIC CACHE REBINDING OF PROCESSED DATA 审中-公开
    处理数据的动态缓存重新处理

    公开(公告)号:US20110202831A1

    公开(公告)日:2011-08-18

    申请号:US12705825

    申请日:2010-02-15

    CPC分类号: G06Q10/10 G06F16/248

    摘要: Generating a report involves phases such as (a) database queries or other raw data accesses, (b) calculations such as data grouping, sorting, filtering, aggregation, (c) data presentation layout, (d) data formatting, and (e) rendering. When generating a modified version of a report, reusable interim results for phases (b), (c), and (d) are identified and retrieved from a cache instead of being recalculated. Newly calculated interim results are also cached for possible future use.

    摘要翻译: 生成报告包括(a)数据库查询或其他原始数据访问,(b)数据分组,排序,过滤,聚合,(c)数据呈现布局,(d)数据格式化和(e) 渲染。 当生成报告的修改版本时,可以从缓存中识别和检索阶段(b),(c)和(d)的可重用临时结果,而不是重新计算。 新计算的中期业绩也被缓存,以备日后使用。