公开(公告)号：US07499552B2

公开(公告)日：2009-03-03

申请号：US11329773

申请日：2006-01-11

申请人： Andrew N. Wilt ,  Michael J. Kelly

发明人： Andrew N. Wilt ,  Michael J. Kelly

IPC分类号： H04L9/00

CPC分类号： H04L9/0825 ,  H04L9/32

摘要： A cipher method for verifying a decryption of an encrypted user data key used to encrypt user data prior to an encryption of the user data key with an encryption key. The cipher method involves a decryption of the encrypted user data key with a decryption key in response to an initiation of a decryption of the encrypted user data with the user data key as decrypted with the description key, a decryption of the verification text with the user data key as decrypted with the decryption key, and a validation/invalidation of a use of the user data key as decrypted with the decryption key to decrypt the encrypted user data in response to a matched/unmatched comparison of the verification text as decrypted with the user data key and an intermixing of a known text and a random text.

摘要翻译： 一种加密方法，用于验证在用加密密钥加密用户数据密钥之前用于加密用户数据的加密用户数据密钥的解密。 密码方法涉及用解密密钥对加密的用户数据密钥进行解密，响应于用描述密钥解密的用户数据密钥对加密的用户数据进行解密，解密用户的验证文本 用解密密钥解密的数据密钥，以及用解密密钥解密的用户数据密钥的使用的验证/无效，以响应于被解密的验证文本的匹配/不匹配的比较来解密加密的用户数据 用户数据密钥和已知文本和随机文本的混合。

公开(公告)号：US20110099328A1

公开(公告)日：2011-04-28

申请号：US12605324

申请日：2009-10-24

申请人： Robert S. Gensler, JR. ,  Andrew N. Wilt

发明人： Robert S. Gensler, JR. ,  Andrew N. Wilt

IPC分类号： G06F12/00

CPC分类号： G06F11/1469

摘要： A method for efficiently restoring data from a sequential-access backup archive includes receiving a candidate list identifying data sets that are potentially contained within a sequential-access backup archive. The method further receives a filter list identifying data sets that are desired to be restored from the backup archive. Using the candidate list and filter list, the method generates a search list identifying data sets that are to be ignored when searching the backup archive. The method then sequentially performs multiple searches of the backup archive such that the multiple searches collectively perform a single pass through the backup archive. When performing these searches, each search begins from the last accessed portion of the backup archive and stops upon encountering a data set not explicitly ignored by the search list. A corresponding system, apparatus, and computer program product are also disclosed herein.

摘要翻译： 用于从顺序访问备份存档高效地恢复数据的方法包括接收标识潜在地包含在顺序访问备份存档内的数据集的候选列表。 该方法还接收标识期望从备份存档恢复的数据集的过滤器列表。 使用候选列表和过滤器列表，该方法生成一个搜索列表，用于标识在搜索备份存档时将被忽略的数据集。 该方法然后顺序执行备份存档的多次搜索，使得多个搜索集体地执行通过备份存档的单次传递。 执行这些搜索时，每个搜索从备份存档的最后访问的部分开始，并在遇到搜索列表未明确忽略的数据集时停止。 本文还公开了相应的系统，装置和计算机程序产品。

公开(公告)号：US20110173404A1

公开(公告)日：2011-07-14

申请号：US12684937

申请日：2010-01-09

申请人： Justin P. Eastman ,  Jeffrey R. Suarez ,  Henry V. Valenzuela ,  Andrew N. Wilt

发明人： Justin P. Eastman ,  Jeffrey R. Suarez ,  Henry V. Valenzuela ,  Andrew N. Wilt

IPC分类号： G06F12/16 ,  G06F12/00

CPC分类号： G06F11/1451 ,  G06F11/201 ,  G06F11/2089 ,  G06F2201/84

摘要： A method for using a change-recording feature to perform more effective backups includes generating an initial point-in-time copy of source data residing in a storage device. The method may then perform an initial backup of the initial point-in-time copy. As changes are made to the source data, the method may record changes made to the source data after the initial point-in-time copy is generated. These changes may be stored as incremental change data. At some point, the initial point-in-time copy may be updated using the incremental change data. In order to perform an incremental backup of the updated point-in-time copy, the method may query the incremental change data to determine which changes were used to update the point-in-time copy. The method may then perform an incremental backup of the updated point-in-time copy by backing up the changes designated in the incremental change data.

摘要翻译： 使用改变记录特征来执行更有效的备份的方法包括生成驻留在存储设备中的源数据的初始时间点副本。 该方法然后可以执行初始时间点副本的初始备份。 当对源数据进行更改时，该方法可以在生成初始时间点副本之后记录对源数据所做的更改。 这些更改可以存储为增量更改数据。 在某些时候，可以使用增量更改数据更新初始时间点副本。 为了对更新的时间点副本执行增量备份，该方法可以查询增量更改数据，以确定哪些更改用于更新时间点副本。 然后，该方法可以通过备份增量更改数据中指定的更改来执行更新的时间点副本的增量备份。