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18 条记录 (耗时 0.014 秒)

    Broadcasting encrypted messages using session keys
    1.
    发明公开
    Broadcasting encrypted messages using session keys 审中-公开
    Verteilung vonverschlüsseltenNachrichten unter Verwendung vonSitzungsschlüsseln

    公开(公告)号：EP1119132A2

    公开(公告)日：2001-07-25

    申请号：EP01101074.1

    申请日：2001-01-18

    申请人： Research In Motion Limited

    发明人： Little, Herb A. ,  Hind, Hugh R.

    IPC分类号： H04L9/08

    CPC分类号： H04L9/083 ,  H04L9/0838 ,  H04L2209/80

    摘要： A system and method for sending encrypted information to multiple recipients is provided. Information such as a message or data to be sent to multiple recipients is encrypted using a selected session key, thereby generating a first encrypted message. The session key is then encrypted with each of a plurality of unique secrets respectively associated with the multiple recipients to thereby generate a plurality of encrypted session keys. The encrypted message and the plurality of encrypted session keys are combined in a second encrypted message, which is transmitted to the multiple recipients. Each of the multiple recipients searches the encrypted message for an encrypted session key which was encrypted with its associated unique secret, decrypts the encrypted session key to retrieve the session key and decrypts an encrypted message using the retrieved session key.

    摘要翻译： 提供了一种用于向多个接收者发送加密信息的系统和方法。 诸如要发送到多个接收者的消息或数据的信息使用选择的会话密钥进行加密，从而生成第一加密消息。 然后，会话密钥用分别与多个接收者相关联的多个唯一秘密中的每一个加密，从而生成多个加密的会话密钥。 加密消息和多个加密会话密钥被组合在被发送给多个接收者的第二加密消息中。 多个接收者中的每一个在加密消息中搜索用其相关联的唯一秘密加密的加密会话密钥，解密加密的会话密钥以检索会话密钥并使用所检索的会话密钥解密加密消息。

    System and method for porting identity information assigned to a mobile communications device
    3.
    发明公开
    System and method for porting identity information assigned to a mobile communications device 有权
    系统和Verfahren zur Portierung vonIdentitätsinformationen一个ein手机Kommunikationsgerät

    公开(公告)号：EP1788781A1

    公开(公告)日：2007-05-23

    申请号：EP07102378.2

    申请日：2004-11-24

    申请人： Research In Motion Limited

    发明人： Lewis, Allan David ,  Godfrey, James ,  Plumb, Marc ,  Whittington, Graeme ,  Little, Herb A.

    IPC分类号： H04L29/06 ,  H04Q7/32

    CPC分类号： H04L29/06 ,  H04L63/06 ,  H04L63/083 ,  H04W8/24 ,  H04W12/04

    摘要： In one embodiment, a scheme is provided for porting a personalized indicium, i.e., a Personal Information Number or PIN, from a first mobile communications device to a second mobile communications device. Upon receiving identity information from the first mobile communications device via a secure peer-to-peer communication session (414, 416), the second mobile communications device is operable to negotiate (450, 452, 454) with a network node (216) using at least a portion of the received identity information for reassigning the PIN to an identifier associated therewith. Upon successfully porting the PIN to the second mobile communications device, a service provisioning database (219) is accordingly updated (456).

    摘要翻译： 在一个实施例中，提供了一种用于将个性化标记（即，个人信息号码或PIN）从第一移动通信设备移植到第二移动通信设备的方案。 在经由安全对等通信会话（414,416）从第一移动通信设备接收到身份信息时，第二移动通信设备可操作以与网络节点（216）协商（450,452,454），网络节点（216）使用 所接收的身份信息的至少一部分用于将PIN重新分配给与其相关联的标识符。 在将PIN成功地移植到第二移动通信设备时，相应地更新服务提供数据库（219）（456）。

    Broadcasting encrypted messages using session keys
    4.
    发明公开
    Broadcasting encrypted messages using session keys 审中-公开
    使用会话密钥加密邮件的分布

    公开(公告)号：EP1119132A3

    公开(公告)日：2003-01-02

    申请号：EP01101074.1

    申请日：2001-01-18

    申请人： Research In Motion Limited

    发明人： Little, Herb A. ,  Hind, Hugh R.

    IPC分类号： H04L9/08

    CPC分类号： H04L9/083 ,  H04L9/0838 ,  H04L2209/80

    摘要： A system and method for sending encrypted information to multiple recipients is provided. Information such as a message or data to be sent to multiple recipients is encrypted using a selected session key, thereby generating a first encrypted message. The session key is then encrypted with each of a plurality of unique secrets respectively associated with the multiple recipients to thereby generate a plurality of encrypted session keys. The encrypted message and the plurality of encrypted session keys are combined in a second encrypted message, which is transmitted to the multiple recipients. Each of the multiple recipients searches the encrypted message for an encrypted session key which was encrypted with its associated unique secret, decrypts the encrypted session key to retrieve the session key and decrypts an encrypted message using the retrieved session key.

    Public key encryption with digital signature scheme
    5.
    发明公开
    Public key encryption with digital signature scheme 有权
    通过数字签名方法公钥加密

    公开(公告)号：EP1063813A3

    公开(公告)日：2002-06-19

    申请号：EP00113227.3

    申请日：2000-06-21

    申请人： Research In Motion Limited

    发明人： Little, Herb A.

    IPC分类号： H04L9/32

    CPC分类号： H04L9/30 ,  H04L9/3247 ,  H04L2209/80

    摘要： An improved encryption and digital signature method in accordance with the invention reuses an encryption ephemeral key pair from an encryption process in a digital signature process. The reuse of the encryption ephemeral key pair in the digital signature process advantageously results in reduced byte size of the digital signature and reduction of costly computation overhead. In a preferred embodiment, the invention is based on the El Gamal encryption scheme and the Nyberg-Rueppel signature scheme. The present invention is particularly useful for operation in conjunction with small communication devices having limited processing and storage, wherein such devices may communicate via bandwidth sensitive RF links.

    Public key encryption with digital signature scheme
    6.
    发明公开
    Public key encryption with digital signature scheme 有权
    VerschlüsselungmittelsöffentlichemSchlüsselmit einem digitalen Unterschriftsverfahren

    公开(公告)号：EP1063813A2

    公开(公告)日：2000-12-27

    申请号：EP00113227.3

    申请日：2000-06-21

    申请人： Research In Motion Limited

    发明人： Little, Herb A.

    IPC分类号： H04L9/32

    CPC分类号： H04L9/30 ,  H04L9/3247 ,  H04L2209/80

    摘要： An improved encryption and digital signature method in accordance with the invention reuses an encryption ephemeral key pair from an encryption process in a digital signature process. The reuse of the encryption ephemeral key pair in the digital signature process advantageously results in reduced byte size of the digital signature and reduction of costly computation overhead. In a preferred embodiment, the invention is based on the El Gamal encryption scheme and the Nyberg-Rueppel signature scheme. The present invention is particularly useful for operation in conjunction with small communication devices having limited processing and storage, wherein such devices may communicate via bandwidth sensitive RF links.

    摘要翻译： 根据本发明的改进的加密和数字签名方法在数字签名过程中重用来自加密处理的加密临时密钥对。 数字签名过程中加密短暂密钥对的重用有利地减少了数字签名的字节大小，降低了昂贵的计算开销。 在优选实施例中，本发明基于El Gamal加密方案和Nyberg-Rueppel签名方案。 本发明对于具有有限处理和存储的小型通信设备的操作特别有用，其中这样的设备可以经由带宽敏感的RF链路进行通信。