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    • 2. 发明申请
    • Secure variable/image storage and access
    • 安全的变量/图像存储和访问
    • US20060294355A1
    • 2006-12-28
    • US11166896
    • 2005-06-24
    • Vincent ZimmerMichael RothmanMark DoranAndrew Fish
    • Vincent ZimmerMichael RothmanMark DoranAndrew Fish
    • G06F9/00
    • G06F21/572
    • Secure variable/image storage and access schemes for storing data in non-volatile stores. Firmware-based interfaces are provided to support secure storage of data, such as asset management data and executable images, on platforms in a manner that prevents access to any entity other than the principle that originally stored the data. In one embodiment, an extension to the Extensible Firmware Interface (EFI) variable storage scheme is disclosed. In another embodiment, a management chip that is not present on the platform is emulated by firmware such that the management chip appears to be present to entities accessing a third-party storage area of a non-volatile store.
    • 用于将数据存储在非易失性存储中的安全变量/映像存储和访问方案。 提供了基于固件的接口,以支持在平台上以数据的安全存储(例如资产管理数据和可执行映像)的方式,以防止访问除最初存​​储数据的原理之外的任何实体。 在一个实施例中,公开了对可扩展固件接口(EFI)变量存储方案的扩展。 在另一实施例中,平台上不存在的管理芯片由固件进行仿真,使得管理芯片看起来存在于访问非易失性存储区的第三方存储区域的实体。
    • 9. 发明授权
    • Method for firmware variable storage with eager compression, fail-safe extraction and restart time compression scan
    • 固件变量存储方法,具有急切压缩,故障安全提取和重启时间压缩扫描
    • US07934209B2
    • 2011-04-26
    • US10561049
    • 2004-05-26
    • Vincent ZimmerMichael RothmanGreg MillerMark Doran
    • Vincent ZimmerMichael RothmanGreg MillerMark Doran
    • G06F9/44
    • G06F9/4401H03M7/30
    • Firmware-based conversion methods for storing converted firmware variables in a firmware storage device, such as flash memory. Under one method, “eager” compression of firmware is performed. In response to a storage request, a determination is made to whether a compressor is available. If it is, the firmware variable is stored in a compressed form in the storage device; if not, the firmware variable is stored in an uncompressed form. In response to a read request for a stored firmware variable, a determination is made to whether the variable is stored in a compressed or uncompressed form. If it is compressed, a decompressor is employed to return the variable to its uncompressed form prior to providing it to the requestor; already uncompressed variables are provided directly to the requester. An application program interface is provided to enable operating system runtime access to the firmware variables. Similar conversions may be employed separately or in parallel, including encryption.
    • 用于将转换的固件变量存储在诸如闪存的固件存储设备中的基于固件的转换方法。 在一种方法下,执行固件的“急切”压缩。 响应于存储请求,确定压缩机是否可用。 如果是,固件变量以压缩形式存储在存储设备中; 如果没有,则固件变量以未压缩形式存储。 响应对存储的固件变量的读取请求,确定变量是以压缩形式还是未压缩形式存储。 如果它被压缩,则使用解压缩器在将变量提供给请求者之前将其变为未压缩的形式; 已经将未压缩的变量直接提供给请求者。 提供一个应用程序接口,以使操作系统运行时访问固件变量。 类似的转换可以单独或并行使用,包括加密。