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    Locating potentially identical objects across multiple computers
    1.
    发明授权
    Locating potentially identical objects across multiple computers 有权
    在多个计算机上定位潜在的相同对象

    公开(公告)号：US07310644B2

    公开(公告)日：2007-12-18

    申请号：US09876377

    申请日：2001-06-06

    申请人： Atul Adya ,  William J. Bolosky ,  John R. Douceur ,  Marvin M. Theimer

    发明人： Atul Adya ,  William J. Bolosky ,  John R. Douceur ,  Marvin M. Theimer

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30156

    摘要： Potentially identical objects (such as files) across multiple computers are located. In one embodiment, a computer generates object information for an object stored on the computer. The object information can be generated in a variety of manners (e.g., based on hashing the object, based on characteristics of the object, and so forth). The object information is then transferred to one or more database server computers, where the object information can be compared to object information from other computers to determine whether the object is potentially identical to another object on one of the other computers.

    摘要翻译： 位于多个计算机上的潜在相同对象（如文件）。 在一个实施例中，计算机生成存储在计算机上的对象的对象信息。 可以以各种方式生成对象信息（例如，基于对象的散列，基于对象的特征等）。 然后将对象信息传送到一个或多个数据库服务器计算机，其中可以将对象信息与来自其他计算机的对象信息进行比较，以确定对象是否与其他计算机之一上的另一个对象潜在地相同。

    Encrypted key cache
    4.
    发明授权
    Encrypted key cache 有权

    公开(公告)号：US06981138B2

    公开(公告)日：2005-12-27

    申请号：US09817812

    申请日：2001-03-26

    申请人： John R. Douceur ,  Atul Adya ,  William J. Bolosky ,  Marvin M. Theimer

    发明人： John R. Douceur ,  Atul Adya ,  William J. Bolosky ,  Marvin M. Theimer

    IPC分类号： H04L9/08 ,  H04L9/30 ,  H04L9/00

    CPC分类号： H04L9/0825 ,  H04L9/0894

    摘要： A file that has been encrypted using a symmetric key and that has a corresponding access control entry with the symmetric key encrypted using the public key of a public/private key pair can be accessed. An encrypted key cache is also accessed to determine whether an access control entry to symmetric key mapping exists in the cache for the access control entry corresponding to the file. If such a mapping exists in the cache, then the mapped-to symmetric key is obtained form the cache, otherwise the encrypted symmetric key is decrypted using the private key of the public/private key pair. The encrypted key cache itself can also be encrypted and stored as an encrypted file.

    Encrypted key cache
    8.
    发明授权
    Encrypted key cache 失效
    加密密钥缓存

    公开(公告)号：US07886364B2

    公开(公告)日：2011-02-08

    申请号：US11206556

    申请日：2005-08-18

    申请人： John R. Douceur ,  Atul Adya ,  William J. Bolosky ,  Marvin M. Theimer

    发明人： John R. Douceur ,  Atul Adya ,  William J. Bolosky ,  Marvin M. Theimer

    IPC分类号： H04L9/00 ,  H04K1/00 ,  H04N7/173 ,  G06F11/30 ,  H04L9/08 ,  H04L9/30 ,  G06F12/14 ,  G06F21/00

    CPC分类号： H04L9/0825 ,  H04L9/0894

    摘要： A file that has been encrypted using a symmetric key and that has a corresponding access control entry with the symmetric key encrypted using the public key of a public/private key pair can be accessed. An encrypted key cache is also accessed to determine whether an access control entry to symmetric key mapping exists in the cache for the access control entry corresponding to the file. If such a mapping exists in the cache, then the mapped-to symmetric key is obtained form the cache, otherwise the encrypted symmetric key is decrypted using the private key of the public/private key pair. The encrypted key cache itself can also be encrypted and stored as an encrypted file.

    摘要翻译： 可以访问已经使用对称密钥加密并具有使用公钥/私钥对的公钥加密的对称密钥的相应访问控制条目的文件。 还访问加密密钥高速缓存以确定对应于该文件的访问控制条目的高速缓存中是否存在对称密钥映射的访问控制条目。 如果高速缓存中存在这样的映射，则从高速缓存获得映射到对称密钥，否则使用公钥/私钥对的私钥解密加密的对称密钥。 加密的密钥缓存本身也可以加密并存储为加密文件。

    Locating potentially identical objects across multiple computers based on stochastic partitioning of workload
    9.
    发明授权
    Locating potentially identical objects across multiple computers based on stochastic partitioning of workload 有权
    基于工作负载的随机分区，在多台计算机上定位潜在的相同对象

    公开(公告)号：US07571186B2

    公开(公告)日：2009-08-04

    申请号：US10991989

    申请日：2004-11-18

    申请人： John R. Douceur ,  Marvin M. Theimer ,  Atul Adya ,  William J. Bolosky

    发明人： John R. Douceur ,  Marvin M. Theimer ,  Atul Adya ,  William J. Bolosky

    IPC分类号： G06F17/00

    CPC分类号： G06F17/30156 ,  Y10S707/99944 ,  Y10S707/99946 ,  Y10S707/99952 ,  Y10S707/99953

    摘要： Potentially identical objects (e.g., files) are located across multiple computers based on stochastic partitioning of workload. For each of a plurality of objects stored on a plurality of computers in a network, a portion of object information corresponding to the object is selected. The object information can be generated in a variety of manners (e.g., based on hashing the object, based on characteristics of the object, and so forth). Any of a variety of portions of the object information can be used (e.g., the least significant bits of the object information). A stochastic partitioning process is then used to identify which of the plurality of computers to communicate the object information to for identification of potentially identical objects on the plurality of computers.

    摘要翻译： 基于工作负载的随机划分，潜在地相同的对象（例如，文件）位于多个计算机之间。 对于存储在网络中的多个计算机上的多个对象中的每一个，选择与对象相对应的对象信息的一部分。 可以以各种方式生成对象信息（例如，基于对象的散列，基于对象的特征等）。 可以使用对象信息的各种部分中的任何一个（例如，对象信息的最低有效位）。 然后使用随机划分过程来识别多个计算机中的哪个计算机传达对象信息以便在多个计算机上识别可能相同的对象。