Cryptographically protected paging system
    5.
    发明授权
    Cryptographically protected paging system 有权
    密码保护的寻呼系统

    公开(公告)号:US07149901B2

    公开(公告)日:2006-12-12

    申请号:US10768902

    申请日:2004-01-29

    IPC分类号: H04L9/00

    摘要: A method and system for maintaining integrity and confidentiality of pages paged to an external storage unit from a physically secure environment. An outgoing page is selected to be exported from a physically secure environment to an insecure environment. An integrity check value is generated and stored for the outgoing page. In one embodiment, this takes the form of taking a one-way hash of the page using a well-known one-way hash function. The outgoing page is then encrypted using a cryptographically strong encryption algorithm. Among the algorithms that might be used in one embodiment of the invention are IDEA and DES. The encrypted outgoing page is then exported to the external storage. By virtue of the encryption and integrity check, the security of the data on the outgoing page is maintained in the insecure environment.

    摘要翻译: 一种用于维护从物理安全环境分页到外部存储单元的页面的完整性和机密性的方法和系统。 选择一个传出页面将从物理安全环境导出到不安全的环境。 为出站页面生成并存储完整性检查值。 在一个实施例中,这采取使用公知的单向散列函数来获取页面的单向散列的形式。 然后使用密码较强的加密算法对输出页进行加密。 在本发明的一个实施例中可以使用的算法中有IDEA和DES。 然后将加密的传出页面导出到外部存储。 凭借加密和完整性检查,出站页面上的数据的安全性保持在不安全的环境中。