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    • 32. 发明申请
    • System and method for authenticating streamed data
    • 用于认证流数据的系统和方法
    • US20070038855A1
    • 2007-02-15
    • US11202081
    • 2005-08-12
    • Michael BrownDavid TapuskaMichael Brown
    • Michael BrownDavid TapuskaMichael Brown
    • H04L9/00
    • H04L63/08H04L63/123
    • A system and method that facilitates the authentication of streamed data received at a device, where authentication information is not distributed over the data stream. One embodiment of a method of authenticating data comprises the steps of: receiving, at the device, data in a plurality of packets transmitted by a data server; submitting a request for a server-computed authentication value to a data authentication server, wherein the data authentication server is adapted to compute the server-computed authentication value based on a subset of the data transmitted by the data server; receiving, at the device, the server-computed authentication value from the data authentication server in response to the request; computing a device-computed authentication value based on a subset of the data received at the device corresponding to the subset of the data transmitted by the data server; and determining if the subset of the data received at the device is authentic by comparing the server-computed and device-computed authentication values.
    • 一种便于在设备处接收到的流数据的认证的系统和方法,其中认证信息不分布在数据流上。 验证数据的方法的一个实施例包括以下步骤:在设备处接收由数据服务器发送的多个分组中的数据; 向数据认证服务器提交服务器计算的认证值的请求,其中所述数据认证服务器适于基于由所述数据服务器发送的数据的子集来计算所述服务器计算的认证值; 在所述设备处,响应于所述请求从所述数据认证服务器接收所述服务器计算的认证值; 基于在与由数据服务器发送的数据的子集相对应的在设备处接收的数据的子集来计算设备计算的认证值; 以及通过比较所述服务器计算的和设备计算的认证值来确定在所述设备处接收到的数据的子集是否是真实的。