System and method for authenticating streamed data
    54.
    发明授权
    System and method for authenticating streamed data 有权
    用于认证流数据的系统和方法

    公开(公告)号:US08407468B2

    公开(公告)日:2013-03-26

    申请号:US13299520

    申请日:2011-11-18

    IPC分类号: H04L29/06

    CPC分类号: H04L63/08 H04L63/123

    摘要: One embodiment of a method of authenticating data comprises: receiving, at a device, data in a plurality of indexed packets transmitted by a data server, the data of the indexed packets being at least a portion of a larger data stream; receiving, at the device, from a data authentication server connected to the device by a network, a server-computed authentication value based on a subset of the data transmitted by the data server, the data authentication server having access to the data that was transmitted from the data server to the device; and comparing a device-computed authentication value based on a subset of the received data, corresponding to the subset of the data transmitted by the data server, with the server-computed authentication value in order to determine whether the subset of the data received at the device is authentic.

    摘要翻译: 认证数据的方法的一个实施例包括:在设备处接收由数据服务器发送的多个索引分组中的数据,索引分组的数据是较大数据流的至少一部分; 在设备处从由网络连接到设备的数据认证服务器接收基于由数据服务器发送的数据的子集的服务器计算的认证值,数据认证服务器具有访问发送的数据的数据认证服务器 从数据服务器到设备; 以及将与数据服务器发送的数据对应的接收到的数据的子集的设备计算的认证值与服务器计算的认证值进行比较,以便确定是否在 设备是真实的

    System and method for processing attachments to messages sent to a mobile device
    55.
    发明授权
    System and method for processing attachments to messages sent to a mobile device 有权
    用于处理发送到移动设备的消息的附件的系统和方法

    公开(公告)号:US08315601B2

    公开(公告)日:2012-11-20

    申请号:US13459388

    申请日:2012-04-30

    IPC分类号: H04M1/66

    CPC分类号: H04L51/38

    摘要: A system and method for processing attachments to messages sent to a mobile device is described herein. Embodiments described herein apply to encrypted messages comprising multiple message parts, in which different encryption keys (e.g. session keys) have been used to encrypt the different message parts. In at least one example embodiment, the encrypted session keys for every message content part comprising an attachment is received at the mobile device. In one embodiment, all of the encrypted session keys are stored together in a main message header. The mobile device may then decrypt the encrypted session key associated with a user requested attachment, and transmits the decrypted session key to one or more remote servers in an attachment request for use in decrypting the requested attachment. Data associated with the requested attachment, in decrypted form, is returned to the mobile device.

    摘要翻译: 本文描述了用于处理发送到移动设备的消息的附件的系统和方法。 本文描述的实施例适用于包括多个消息部分的加密消息,其中已经使用不同的加密密钥(例如,会话密钥)来加密不同的消息部分。 在至少一个示例实施例中,在移动设备处接收包括附件的每个消息内容部分的加密会话密钥。 在一个实施例中,所有加密的会话密钥一起存储在主消息头中。 然后,移动设备可以解密与用户请求的附件相关联的加密的会话密钥,并将解密的会话密钥发送到附件请求中的一个或多个远程服务器,以用于解密所请求的附件。 与所请求的附件相关联的数据以解密格式返回给移动设备。

    System and method for processing attachments to messages sent to a mobile device

    公开(公告)号:US08195128B2

    公开(公告)日:2012-06-05

    申请号:US13089456

    申请日:2011-04-19

    IPC分类号: H04M1/66

    CPC分类号: H04L51/38

    摘要: A system and method for processing attachments to messages sent to a mobile device is described herein. Embodiments described herein apply to encrypted messages comprising multiple message parts, in which different encryption keys (e.g. session keys) have been used to encrypt the different message parts. In at least one example embodiment, the encrypted session keys for every message content part comprising an attachment is received at the mobile device. In one embodiment, all of the encrypted session keys are stored together in a main message header. The mobile device may then decrypt the encrypted session key associated with a user requested attachment, and transmits the decrypted session key to one or more remote servers in an attachment request for use in decrypting the requested attachment. Data associated with the requested attachment, in decrypted form, is returned to the mobile device.

    Key agreement and re-keying over a bidirectional communication path

    公开(公告)号:US08090107B2

    公开(公告)日:2012-01-03

    申请号:US12973485

    申请日:2010-12-20

    IPC分类号: H04L9/00

    摘要: A key agreement method is carried out by a first system in conjunction with a second system over a bidirectional communication path, including generating a first key pair having a first public key and a first private key, sending the first public key to the second system, receiving a second public key generated by the second system, and calculating a master key based upon the first private key, the second public key, a long-term private key, and a long-term public key. The long-term private key was generated by the first system during a previous key-agreement method as part of a long-term key pair. The long-term public key was generated by the second system and received during the previous key-agreement method. The previous key-agreement method required a secret to be known to the first system and the second system, thus conferring authentication based on the secret to the long-term public key.

    Large vocabulary connected speech recognition system and method of
language representation using evolutional grammer to represent context
free grammars
    60.
    发明授权
    Large vocabulary connected speech recognition system and method of language representation using evolutional grammer to represent context free grammars 失效
    大词汇连接的语音识别系统和使用演化语法的语言表示方法来表示上下文无关语法

    公开(公告)号:US5719997A

    公开(公告)日:1998-02-17

    申请号:US697152

    申请日:1996-08-20

    摘要: A method of recognizing speech input selectively creates and maintains grammar representations of the speech input in essentially real time. Speech input frames are received by a speech recognition system. Grammar representations are created for each speech frame and a probability score is derived for the representations indicating the probability of the accuracy of the representations to the speech input. Representations having a probability score below a predetermined threshold are not maintained. Those grammar representations having probability scores above the predetermined threshold are maintained. As more speech frames are received by the system, additional grammar representations are created and the probability scores are updated. When the entire speech input has been received, the chain of grammar representations having the highest probability score is identified as the speech input.

    摘要翻译: 识别语音输入的方法选择性地以基本上实时的方式创建和维护语音输入的语法表示。 语音输入帧由语音识别系统接收。 为每个语音帧创建语法表示,并且为表示语音输入的表示的精度的概率的表示导出概率分数。 不保持概率分数低于预定阈值的表示。 保持具有高于预定阈值的概率分数的那些语法表示。 随着系统接收到更多的语音帧,创建了附加的语法表示,并且更新了概率得分。 当接收到整个语音输入时,将具有最高概率得分的语法表示链识别为语音输入。