Communications channel interposer, method and program product for verifying integrity of untrusted subsystem responses to a request
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    发明申请
    Communications channel interposer, method and program product for verifying integrity of untrusted subsystem responses to a request 失效
    通信通道插入器,方法和程序产品,用于验证不可信子系统对请求的响应的完整性

    公开(公告)号:US20070162621A1

    公开(公告)日:2007-07-12

    申请号:US11260285

    申请日:2005-10-27

    IPC分类号: G06F13/24 G06F3/00

    摘要: In a communications channel coupled to multiple duplicated subsystems, a method, interposer and program product are provided for verifying integrity of subsystem responses. Within the communications channel, a first checksum is calculated with receipt of a first response from a first subsystem responsive to a common request, and a second checksum is calculated for a second response of a second subsystem received responsive to the common request. The first checksum and the second checksum are compared, and if matching, only one of the first response and the second response is forwarded from the communications channel as the response to the common request, with the other of the first response and the second response being discarded by the communications channel.

    摘要翻译: 在耦合到多个重复子系统的通信信道中,提供了用于验证子系统响应的完整性的方法,插入器和程序产品。 在通信信道中,响应于公共请求从第一子系统接收到第一响应来计算第一校验和,并且响应于公共请求而接收响应于第二子系统的第二响应的第二校验和。 比较第一校验和和第二校验和,如果匹配,则只有第一响应和第二响应中的仅一个作为对公共请求的响应从通信信道转发,第一响应和第二响应中的另一个为 由通信信道丢弃。