Remote authentication of fingerprints over an insecure network
    1.
    发明授权
    Remote authentication of fingerprints over an insecure network 有权
    在不安全的网络上远程认证指纹

    公开(公告)号:US06778688B2

    公开(公告)日:2004-08-17

    申请号:US09848887

    申请日:2001-05-04

    IPC分类号: G06K900

    摘要: The present invention relates to a method, system and computer program product for enabling the remote authentication of fingerprints over an insecure network using a client-server architecture by generation of a set of random queries relating to fingerprint patterns based on stored fingerprint data at the server, to which the client responds based on the observed fingerprint patterns, followed by the issuing of a randomly generates set of challenges pertaining to geometrical relationships between the fingerprint patterns for which confirm responses are received by their server, the final authentication being determined by the proportion of correct responses by the client to said challenges.

    摘要翻译: 本发明涉及一种方法,系统和计算机程序产品,用于通过使用客户机 - 服务器架构,通过基于服务器上存储的指纹数据生成与指纹图案相关的一组随机查询,来实现对不安全网络的指纹的远程认证 ,客户端根据观察到的指纹图案进行响应,随后随机地生成与其服务器接收到确认响应的指纹图案之间的几何关系有关的一组挑战,最终认证由比例确定 客户对所面临的挑战作出正确的回应。

    Method and apparatus for encrypting/decrypting multimedia content to allow random access
    3.
    发明授权
    Method and apparatus for encrypting/decrypting multimedia content to allow random access 有权
    用于加密/解密多媒体内容以允许随机访问的方法和装置

    公开(公告)号:US08677504B2

    公开(公告)日:2014-03-18

    申请号:US11182088

    申请日:2005-07-14

    IPC分类号: G06F21/00

    摘要: A method is disclosed for encrypting a multimedia file including parsing the multimedia file to identify a media data portion; encrypting the media data portion; and, combining the encrypted media data portion with a non-encrypted non-media data portion. A method is also disclosed for playing a multimedia file including parsing the multimedia file to identify an unencrypted metadata portion; using the unencrypted metadata portion to locate a position of interest in the media file, the position of interest having an associated encrypted media data portion; and, decrypting the associated encrypted media data portion. An apparatus for performing the methods is also disclosed herein.

    摘要翻译: 公开了一种加密多媒体文件的方法,包括解析多媒体文件以识别媒体数据部分; 加密媒体数据部分; 以及将加密的媒体数据部分与未加密的非媒体数据部分组合。 还公开了播放多媒体文件的方法,包括解析多媒体文件以识别未加密的元数据部分; 使用未加密的元数据部分来定位媒体文件中感兴趣的位置,感兴趣的位置具有相关联的加密媒体数据部分; 以及解密相关联的加密媒体数据部分。 本文还公开了一种用于执行该方法的装置。