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    • 2. 发明授权
    • Key cache management through multiple localities
    • 通过多个地方进行密钥缓存管理
    • US07590845B2
    • 2009-09-15
    • US10744441
    • 2003-12-22
    • Charles Douglas BallRyan Charles CathermanJames Patrick HoffJames Peter Ward
    • Charles Douglas BallRyan Charles CathermanJames Patrick HoffJames Peter Ward
    • H04L9/14G06F12/08
    • H04L9/0894
    • A method for a plurality of key cache managers for a plurality of localities to share cryptographic key storage resources of a security chip, includes: loading an application key into the key storage; and saving a restoration data for the application key by a key cache manager, where the restoration data can be used by the key cache manager to re-load the application key into the key storage if the application key is evicted from the key storage by another key cache manager. The method allows each of a plurality of key cache managers to recognize that its key had been removed from the security chip and to restore its key. The method also allows each key cache manager to evict or destroy any key currently loaded on the security chip without affecting the functionality of other localities.
    • 一种用于多个地区的多个密钥高速缓存管理器用于共享安全芯片的加密密钥存储资源的方法,包括:将应用密钥加载到密钥存储器中; 并且由密钥高速缓存管理器保存用于应用密钥的恢复数据,其中如果应用密钥从另一个密钥存储器被逐出,密钥高速缓存管理器可以使用恢复数据将应用密钥重新加载到密钥存储器中 密钥缓存管理器。 该方法允许多个密钥高速缓存管理器中的每一个识别出其密钥已经从安全芯片中移除并恢复其密钥。 该方法还允许每个密钥缓存管理器驱逐或销毁安全芯片上当前加载的任何密钥,而不影响其他地方的功能。
    • 10. 发明授权
    • Securing decrypted files in a shared environment
    • 在共享环境中保护解密的文件
    • US07167982B2
    • 2007-01-23
    • US09952103
    • 2001-09-14
    • Scott Thomas ElliottJames Patrick HoffChristopher Scott LongDavid RiveraJames Peter Ward
    • Scott Thomas ElliottJames Patrick HoffChristopher Scott LongDavid RiveraJames Peter Ward
    • H04L9/00
    • H04L63/04G06F21/6218G06F2221/2147Y10S707/99953Y10S707/99955
    • A method, system and computer program product for securing decrypted files in a shared environment. A filter driver in a kernel space may be configured to control service requests to encrypted files stored in a shared area, e.g., a shared directory on a disk unit, accessible by multiple users. The filter driver may receive a service request to open an encrypted document in the shared area issued from an authorized user. Upon receiving the encrypted data, the filter driver may decrypt the encrypted data. The filter driver may subsequently store the decrypted data in a file in a non-shared area, e.g., a non-shared directory. The non-shared area may be accessible only by the authorized user that requested access to the encrypted file. By storing the decrypted data in a file in the non-shared area, a file once decrypted may be protected in a file sharing environment.
    • 一种用于在共享环境中保护解密文件的方法,系统和计算机程序产品。 内核空间中的过滤器驱动程序可以被配置为将服务请求控制为存储在共享区域(例如,可由多个用户访问的磁盘单元上的共享目录)上的加密文件。 过滤器驱动程序可以接收服务请求以在从授权用户发出的共享区域中打开加密文档。 在接收到加密数据之后,过滤器驱动程序可以对加密的数据进行解密。 滤波器驱动器可随后将解密的数据存储在非共享区域(例如非共享目录)中的文件中。 非共享区域可以仅由请求访问加密文件的授权用户访问。 通过将解密的数据存储在非共享区域中的文件中,一旦解密的文件可以在文件共享环境中被保护。