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1. 发明授权

US07382883B2 Deriving a symmetric key from an asymmetric key for file encryption or decryption 有权
标题翻译：从用于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：US07382883B2
公开(公告)日：2008-06-03
申请号：US11611051
申请日：2006-12-14
申请人： David B. Cross , Jianrong Gu , Josh D. Benaloh , Thomas C. Jones , Paul J. Leach , Glenn D. Pittaway
发明人： David B. Cross , Jianrong Gu , Josh D. Benaloh , Thomas C. Jones , Paul J. Leach , Glenn D. Pittaway
IPC分类号： H04L9/00
CPC分类号： H04L63/045 , G06Q20/3829 , H04L9/0822 , H04L9/0894 , H04L63/0823
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。

2. 发明授权

US07181016B2 Deriving a symmetric key from an asymmetric key for file encryption or decryption 有权
标题翻译：从用于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：US07181016B2
公开(公告)日：2007-02-20
申请号：US10351683
申请日：2003-01-27
申请人： David B. Cross , Jianrong Gu , Josh D. Benaloh , Thomas C. Jones , Paul J. Leach , Glenn D. Pittaway
发明人： David B. Cross , Jianrong Gu , Josh D. Benaloh , Thomas C. Jones , Paul J. Leach , Glenn D. Pittaway
IPC分类号： H04L9/00
CPC分类号： H04L63/045 , G06Q20/3829 , H04L9/0822 , H04L9/0894 , H04L63/0823
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。

3. 发明授权

US08045714B2 Systems and methods for managing multiple keys for file encryption and decryption 有权
标题翻译：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
申请人： David B. Cross , Duncan G. Bryce , Jianrong Gu , Kelvin Shek Yiu , Monica Ioana Ene-Pietrosanu
发明人： David B. Cross , Duncan G. Bryce , Jianrong Gu , Kelvin Shek Yiu , Monica Ioana Ene-Pietrosanu
IPC分类号： H04L9/00
CPC分类号： G06F21/602 , G06F21/6209 , G06F21/6281 , G06F2221/2141 , H04L9/0891 , H04L9/0894 , H04L9/16
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。

4. 发明授权

US07376968B2 BIOS integrated encryption 有权
标题翻译： 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
申请人： Andrew J. Ritz , David B. Cross , Duncan Bryce , James A. Schwartz, Jr. , Jianrong Gu , Scott A. Field
发明人： Andrew J. Ritz , David B. Cross , Duncan Bryce , James A. Schwartz, Jr. , Jianrong Gu , Scott A. Field
IPC分类号： G06F1/00 , G06F17/30 , G06F9/00
CPC分类号： G06F21/575 , G06F21/6209 , G06F2221/2107
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。

5. 发明授权

US08798272B2 Systems and methods for managing multiple keys for file encryption and decryption 有权
标题翻译：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
申请人： David B. Cross , Duncan G. Bryce , Jianrong Gu , Kelvin Sjek Yiu , Monica Ioana Ene-Pietrosanu
发明人： David B. Cross , Duncan G. Bryce , Jianrong Gu , Kelvin Sjek Yiu , Monica Ioana Ene-Pietrosanu
IPC分类号： H04L29/06
CPC分类号： G06F21/602 , G06F21/6209 , G06F21/6281 , G06F2221/2141 , H04L9/0891 , H04L9/0894 , H04L9/16
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。

6. 发明授权

US07325115B2 Encryption of system paging file 有权
标题翻译：加密系统页面文件
公开(公告)号：US07325115B2
公开(公告)日：2008-01-29
申请号：US10721562
申请日：2003-11-25
申请人： Benjamin A. Leis , David B. Cross , Duncan G. Bryce , Jianrong Gu , Rajeev Y. Nagar , Scott A. Field
发明人： Benjamin A. Leis , David B. Cross , Duncan G. Bryce , Jianrong Gu , Rajeev Y. Nagar , Scott A. Field
IPC分类号： G06F12/00
CPC分类号： G06F12/145 , G06F21/62 , G06F21/6281 , G06F21/80 , G06F2221/2143
摘要： An operating system copies data from memory pages into a paging file on disk, in order to free up space in the memory. A mechanism is disclosed that causes the data to be encrypted as it is copied into the paging file, thereby protecting the paged data from unauthorized (or otherwise undesired) observation. The data that is stored in the paging file is encrypted with a session key, that is generated shortly after the machine on which the paging file exists is started. The session key, which is used both for encryption and decryption of the paging file data, is stored in volatile memory, so that the key is not persisted across boots of the machine. Since the key is not persisted across boots, old paging file data that was stored prior to the most recent boot cannot be recovered in clear text, thereby protecting the data from observation.
摘要翻译：操作系统将数据从内存页复制到磁盘上的页面文件中，以释放内存中的空间。公开了一种机制，使得数据在被复制到寻呼文件中时被加密，从而保护分页数据免受未经授权（或以其他方式不希望的）观察。存储在页面文件中的数据使用会话密钥进行加密，会话密钥是在启动了分页文件的计算机之后不久生成的。用于分页文件数据的加密和解密的会话密钥存储在易失性存储器中，使得密钥不会在机器的引导上持久存储。由于密钥在整个引导过程中不会持久存在，所以在最新引导之前存储的旧页面文件数据无法以明文形式恢复，从而保护数据免受观察。

7. 发明申请

US20110085664A1 SYSTEMS AND METHODS FOR MANAGING MULTIPLE KEYS FOR FILE ENCRYPTION AND DECRYPTION 有权
标题翻译：用于管理文件加密和解密的多个核的系统和方法
公开(公告)号：US20110085664A1
公开(公告)日：2011-04-14
申请号：US12971157
申请日：2010-12-17
申请人： David B. Cross , Duncan G. Bryce , Jianrong Gu , Kelvin Sjek Yiu , Monica Ioana Ene-Pietrosanu
发明人： David B. Cross , Duncan G. Bryce , Jianrong Gu , Kelvin Sjek Yiu , Monica Ioana Ene-Pietrosanu
IPC分类号： H04L9/00
CPC分类号： G06F21/602 , G06F21/6209 , G06F21/6281 , G06F2221/2141 , H04L9/0891 , H04L9/0894 , H04L9/16
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。

8. 发明申请

US20110106948A1 Running Internet Applications with Low Rights 有权
标题翻译：运行低权限的Internet应用程序
公开(公告)号：US20110106948A1
公开(公告)日：2011-05-05
申请号：US12840123
申请日：2010-07-20
申请人： Roberto A. Franco , Anantha P. Ganjam , John G. Bedworth , Peter T. Brundrett , Roland K. Tokumi , Jeremiah S. Epling , Daniel Sie , Jianrong Gu , Marc Silbey , Vidya Nallathimmayyagari , Bogdan Tepordei
发明人： Roberto A. Franco , Anantha P. Ganjam , John G. Bedworth , Peter T. Brundrett , Roland K. Tokumi , Jeremiah S. Epling , Daniel Sie , Jianrong Gu , Marc Silbey , Vidya Nallathimmayyagari , Bogdan Tepordei
IPC分类号： G06F15/173
CPC分类号： G06F21/53
摘要： In various embodiments, applications that are configured to interact with the Internet in some way are executed in a restricted process with a reduced privilege level that can prohibit the application from accessing portions of an associated computing device. For example, in some embodiments, the restricted process can prohibit applications from read and write access to portions of a system's computer-readable media, such as the hard disk, that contains administrative data and settings information and user data and settings. In these embodiments, a special portion of the disk, termed a “containment zone”, is designated and used by applications in this restricted process.
摘要翻译：在各种实施例中，被配置为以某种方式与因特网进行交互的应用程序在具有降低的权限级别的受限进程中执行，所述权限级别可以禁止应用访问相关联的计算设备的部分。例如，在一些实施例中，受限制的过程可以禁止应用程序对包含管理数据和设置信息以及用户数据和设置的系统的计算机可读介质（例如硬盘）的部分进行读取和写入访问。在这些实施例中，称为“容纳区”的盘的特殊部分在该限制过程中由应用程序指定和使用。

9. 发明申请

US20070088947A1 Deriving a Symmetric Key from an Asymmetric Key for File Encryption or Decryption 有权
标题翻译：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
申请人： David Cross , Jianrong Gu , Josh Benaloh , Thomas Jones , Paul Leach , Glenn Pittaway
发明人： David Cross , Jianrong Gu , Josh Benaloh , Thomas Jones , Paul Leach , Glenn Pittaway
IPC分类号： H04L9/00
CPC分类号： H04L63/045 , G06Q20/3829 , H04L9/0822 , H04L9/0894 , H04L63/0823
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。

10. 发明授权

US06249866B1 Encrypting file system and method 失效
标题翻译：加密文件系统和方法
公开(公告)号：US06249866B1
公开(公告)日：2001-06-19
申请号：US08931774
申请日：1997-09-16
申请人： Peter Brundrett , Praerit Garg , Jianrong Gu , James W. Kelly, Jr. , Keith S. Kaplan , Robert P. Reichel , Brian Andrew , Gary D. Kimura , Thomas J. Miller
发明人： Peter Brundrett , Praerit Garg , Jianrong Gu , James W. Kelly, Jr. , Keith S. Kaplan , Robert P. Reichel , Brian Andrew , Gary D. Kimura , Thomas J. Miller
IPC分类号： H04L930
CPC分类号： G06F12/1408 , G06F21/602 , G06F21/604 , G06F21/6227 , G06F2211/008 , G06F2221/2131 , G06F2221/2141 , G06F2221/2145 , G06F2221/2153 , H04L9/0897
摘要： A system and method for encryption and decryption of files. The system and method operate in conjunction with the file system to transparently encrypt and decrypt files in using a public key-private key pair encryption scheme. When a user puts a file in an encrypted directory or encrypts a file, all data writes to the disk for that file are encrypted with a random file encryption key generated from a random number and encrypted with the public key of a user and the public key of at least one recovery agent. The encrypted key information is stored with the file, whereby the user or a recovery agent can decrypt the file data using the private key thereof. When a proper private key is used, encrypted reads from the disk are decrypted transparently by the file system and returned to the user.
摘要翻译：用于文件加密和解密的系统和方法。系统和方法与文件系统一起运行，以使用公钥 - 私钥对加密方案对文件进行透明加密和解密。当用户将文件放入加密目录或加密文件时，对该文件的磁盘进行的所有数据写入都使用随机数生成的随机文件加密密钥进行加密，并使用用户的公开密钥和公钥加密的至少一种回收剂。加密的密钥信息与文件一起存储，由此用户或恢复代理可以使用其私钥对文件数据进行解密。当使用适当的私钥时，磁盘的加密读取将被文件系统透明地解密并返回给用户。

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