Roaming encryption key rekeying apparatus and method
    1.
    发明申请
    Roaming encryption key rekeying apparatus and method 审中-公开
    漫游加密密钥密钥设备和方法

    公开(公告)号:US20060233371A1

    公开(公告)日:2006-10-19

    申请号:US11396722

    申请日:2006-04-03

    IPC分类号: H04K1/00

    摘要: Roaming encryption key rekeying apparatus and method comprising a first system key management facility that communicates to a communication unit roaming information is disclosed. The roaming information is encrypted using a first encryption scheme that is decipherable by the communication unit. Further, the first system key management facility communicates to a second system key management facility the roaming information. In this communication, the roaming information is encrypted as a function of a second encryption scheme that is decipherable by the second system key management facility.

    摘要翻译: 公开了包括与通信单元漫游信息通信的第一系统密钥管理设备的漫游加密密钥密钥设备和方法。 使用可由通信单元解密的第一加密方案对漫游信息进行加密。 此外,第一系统密钥管理设备向第二系统密钥管理设备通信漫游信息。 在该通信中,漫游信息作为可被第二系统密钥管理设备解密的第二加密方案的功能进行加密。

    Managing multiple cryptographic periods in a single cryptographic group
    2.
    发明申请
    Managing multiple cryptographic periods in a single cryptographic group 有权
    在单个加密组中管理多个加密周期

    公开(公告)号:US20050047598A1

    公开(公告)日:2005-03-03

    申请号:US10654075

    申请日:2003-09-03

    申请人: Chris Kruegel

    发明人: Chris Kruegel

    IPC分类号: H04L9/08 H04L9/00

    摘要: A plurality of storage location numbers (“SLNs”), each having a cryptographic period, is received at a first device (100). A system cryptographic period is determined based on the SLN cryptographic periods. Prior to expiration of each system cryptographic period, if at least one SLN requires an updated, the first device sends updated key material for the at least one SLN. A second device (102) maintains first, second, and third keysets, wherein the first and second keysets comprise key material. The second device receives a message to make the first keyset active, and a second message for updating at least a portion of the key material in the second keyset with updated key material for at least one SLN. The second device makes the third keyset equivalent to the second keyset, updates the second keyset with the updated key material, and receives a third message to make the second keyset active.

    摘要翻译: 在第一设备(100)处接收多个具有加密周期的存储位置号码(“SLN”)。 基于SLN密码周期来确定系统密码周期。 在每个系统加密周期期满之前,如果至少一个SLN需要更新,则第一设备发送用于至少一个SLN的更新密钥材料。 第二设备(102)维护第一,第二和第三键组,其中第一和第二键组包括键材料。 第二设备接收使第一密钥集有效的消息,以及第二消息,用于使用用于至少一个SLN的更新密钥材料来更新第二密钥集中的密钥材料的至少一部分。 第二设备使第三密钥组与第二密钥集相当,用更新的密钥资料更新第二密钥集,并接收第三个消息以使第二个密钥集有效。

    Communication system and method of call group management therefor
    3.
    发明申请
    Communication system and method of call group management therefor 审中-公开
    通话系统及呼叫群组管理方法

    公开(公告)号:US20060056635A1

    公开(公告)日:2006-03-16

    申请号:US11227612

    申请日:2005-09-15

    IPC分类号: H04K1/00

    摘要: A communication system comprises a first plurality of remote stations (107, 109, 111) belonging to a first call group (119) having an associated first encryption key and a first encryption mode. A second plurality of remote stations (113, 115) belongs to a second call group (121) having an associated second encryption key and a second encryption mode. A group controller (117) forms a third call group (123) which comprises the first and the second call groups (119, 123) and which has an associated third encryption key. When communicating on the third, combined call group, the first plurality of remote stations (107, 109, 111) use the third encryption key and the first encryption mode whereas the second plurality of remote stations (113, 115) use the third encryption key and the second encryption mode.

    摘要翻译: 通信系统包括属于具有关联的第一加密密钥和第一加密模式的第一呼叫组(119)的第一多个远程站(107,109,111)。 第二多个远程站(113,115)属于具有相关联的第二加密密钥和第二加密模式的第二呼叫组(121)。 组控制器(117)形成包括第一和第二呼叫组(119,123)并且具有相关联的第三加密密钥的第三呼叫组(123)。 当在第三组合呼叫组进行通信时,第一组多个远程站(107,109,111)使用第三加密密钥和第一加密模式,而第二多个远程站(113,115)使用第三加密密钥 和第二加密模式。