Systems and methods for managing multiple keys for file encryption and decryption
    6.
    发明授权
    Systems and methods for managing multiple keys for file encryption and decryption 有权
    用于管理文件加密和解密的多个密钥的系统和方法

    公开(公告)号:US08045714B2

    公开(公告)日:2011-10-25

    申请号:US11053212

    申请日:2005-02-07

    IPC分类号: H04L9/00

    摘要: Systems and methods for managing multiple keys for file encryption and decryption may provide an encrypted list of previously used keys. The list itself may be encrypted using a current key. To decrypt files that are encrypted in one or more of the previous keys, the list can be decrypted, and the appropriate previous key can be retrieved. To re-key files, an automated process can decrypt any files using previous keys and encrypt them using the current key. If a new current key is introduced, the prior current key can be used to decrypt the list of keys, the prior current key can be added to the list, and the list can be re-encrypted using the new current key.

    摘要翻译: 用于管理用于文件加密和解密的多个密钥的系统和方法可以提供先前使用的密钥的加密列表。 列表本身可以使用当前密钥进行加密。 要解密在一个或多个先前密钥中加密的文件,可以解密该列表,并且可以检索相应的上一个密钥。 要重新启动文件,自动化过程可以使用先前的密钥解密任何文件,并使用当前密钥进行加密。 如果引入新的当前密钥,则可以使用先前的当前密钥来解密密钥列表,可以将先前的当前密钥添加到列表中,并且可以使用新的当前密钥重新加密列表。

    BIOS integrated encryption
    7.
    发明授权
    BIOS integrated encryption 有权
    BIOS集成加密

    公开(公告)号:US07376968B2

    公开(公告)日:2008-05-20

    申请号:US10718153

    申请日:2003-11-20

    IPC分类号: G06F1/00 G06F17/30 G06F9/00

    摘要: A system and method for facilitating BIOS integrated encryption is provided. An interface is defined between the operating system and the BIOS. The operating system employs this interface to provide BIOS code information to facilitate decryption of data that is encrypted on the system. In the pre-operating system boot phase, the BIOS employs the decryption information provided from this interface in order to decrypt the data. The decrypted information can be employed to facilitate secure rebooting of a computer system from hibernate mode and/or secure access to device(s).

    摘要翻译: 提供了一种用于促进BIOS集成加密的系统和方法。 在操作系统和BIOS之间定义一个接口。 操作系统采用该接口提供BIOS代码信息,以便于在系统上加密的数据的解密。 在操作前系统启动阶段,BIOS使用从该接口提供的解密信息来解密数据。 解密的信息可用于促进计算机系统从休眠模式的安全重新启动和/或安全地访问设备。

    Deriving a Symmetric Key from an Asymmetric Key for File Encryption or Decryption
    8.
    发明申请
    Deriving a Symmetric Key from an Asymmetric Key for File Encryption or Decryption 有权
    从文件加密或解密的非对称密钥中导出对称密钥

    公开(公告)号:US20070088947A1

    公开(公告)日:2007-04-19

    申请号:US11611051

    申请日:2006-12-14

    IPC分类号: H04L9/00

    摘要: One aspect relates to a process and associated device that provides a private key of an asymmetric key pair in a key device. A symmetric master key is derived from the private key of the asymmetric key pair. The symmetric master key is stored in a computer memory location. The symmetric master key is used to encrypt or decrypt a file encryption key. The file encryption key can encrypt or decrypt files. In another aspect, the user can still access the files even if a user deactivates the key device by encrypting or decrypting the file encryption key directly from the symmetric master key.

    摘要翻译: 一个方面涉及在密钥设备中提供非对称密钥对的私钥的过程和相关设备。 对称主密钥是从非对称密钥对的私有密钥导出的。 对称主密钥存储在计算机内存位置。 对称主密钥用于加密或解密文件加密密钥。 文件加密密钥可以加密或解密文件。 在另一方面,即使用户通过直接从对称主密钥加密或解密文件加密密钥来使密钥设备停用,用户仍然可以访问文件。

    Systems and methods for managing multiple keys for file encryption and decryption
    9.
    发明授权
    Systems and methods for managing multiple keys for file encryption and decryption 有权
    用于管理文件加密和解密的多个密钥的系统和方法

    公开(公告)号:US08798272B2

    公开(公告)日:2014-08-05

    申请号:US12971157

    申请日:2010-12-17

    IPC分类号: H04L29/06

    摘要: Systems and methods for managing multiple keys for file encryption and decryption may provide an encrypted list of previously used keys. The list itself may be encrypted using a current key. To decrypt files that are encrypted in one or more of the previous keys, the list can be decrypted, and the appropriate previous key can be retrieved. To re-key files, an automated process can decrypt any files using previous keys and encrypt them using the current key. If a new current key is introduced, the prior current key can be used to decrypt the list of keys, the prior current key can be added to the list, and the list can be re-encrypted using the new current key.

    摘要翻译: 用于管理用于文件加密和解密的多个密钥的系统和方法可以提供先前使用的密钥的加密列表。 列表本身可以使用当前密钥进行加密。 要解密在一个或多个先前密钥中加密的文件,可以解密该列表,并且可以检索相应的上一个密钥。 要重新启动文件,自动化过程可以使用先前的密钥解密任何文件,并使用当前密钥进行加密。 如果引入新的当前密钥,则可以使用先前的当前密钥来解密密钥列表,可以将先前的当前密钥添加到列表中,并且可以使用新的当前密钥重新加密列表。

    System and method for providing transparent access to distributed authoring and versioning files including encrypted files
    10.
    发明授权
    System and method for providing transparent access to distributed authoring and versioning files including encrypted files 有权
    提供透明访问分发创作和版本控制文件(包括加密文件)的系统和方法

    公开(公告)号:US07437429B2

    公开(公告)日:2008-10-14

    申请号:US10052039

    申请日:2002-01-17

    IPC分类号: G06F15/16 G06F12/00

    摘要: Access to WebDAV (Distributed Authoring and Versioning) servers is provided in a manner that is essentially transparent to applications. A WebDAV redirector and related components support file system I/O requests and network requests directed to WebDAV servers identified by URI (Universal Resource Identifier) names, or by a drive may be mapped to a WebDAV share. An application's create or open I/O requests directed to a WebDAV server are detected, and result in a local copy of the file being downloaded and cached for local access. When closed, the local file is uploaded to the WebDAV server. Network-related requests such as for browsing that are directed to a WebDAV server are also handled transparently. WebDAV files may be locally encrypted and decrypted at the file system level, transparent to applications and the WebDAV server, via an encrypting file system that performs local encryption and decryption at the local file system level.

    摘要翻译: 以对应用程序基本透明的方式提供对WebDAV(分布式创作和版本控制)服务器的访问。 WebDAV重定向器和相关组件支持文件系统I / O请求和针对由URI(通用资源标识符)名称标识的WebDAV服务器的网络请求,或者由驱动器映射到WebDAV共享。 检测到应用程序创建或打开指向WebDAV服务器的I / O请求,并导致要下载并缓存的文件的本地副本以进行本地访问。 关闭时,本地文件上传到WebDAV服务器。 与WebDAV服务器相关的网络相关请求(如用于浏览)也被透明处理。 可以通过在本地文件系统级执行本地加密和解密的加密文件系统,在文件系统级别对WebDAV文件进行本地加密和解密,对应用程序和WebDAV服务器是透明的。