Distribution of user specific data elements in a replication environment

    公开(公告)号:US11593498B2

    公开(公告)日:2023-02-28

    申请号:US16896289

    申请日:2020-06-09

    IPC分类号: G06F21/62 G06F16/178

    摘要: Aspects include receiving a notification that a value of a data element stored in a source storage location in a source format has been changed to an updated value. The change is replicated to a plurality of target storage locations. The replicating includes, for each of the plurality of target storage locations, determining a target format of the data element in the target storage location. The target format is one of a plurality of different formats, including the source format. Each of the different formats provide a different level of data protection for the data element. In response to determining that the target format is not the same as the source format, the updated value of the data element is converted into the target format, and the updated value of the data element is stored in the target format at the target storage location.

    Replicating data changes through distributed invalidation

    公开(公告)号:US11526534B2

    公开(公告)日:2022-12-13

    申请号:US16868896

    申请日:2020-05-07

    IPC分类号: G06F16/27 G06F16/23

    摘要: A computer-implemented method for replicating data changes through distributed invalidation includes receiving, by a distributed database system, an instruction to change a data element in a table. The distributed database system includes at least a first server and a second server. A first copy of the table is stored on the first server, and a second copy of the table is stored on the second server. The method further includes in response to the instruction, determining that the data element is secured by a replication key that is stored on a shared key management system that is accessible by the first server and by the second server, wherein the replication key is unique to the data element. The method further includes invalidating the replication key and modifying the first copy of the table on the first server according to the instruction that is received.

    MULTIPLE SIGNATURES IN METADATA FOR THE SAME DATA RECORD

    公开(公告)号:US20200233978A1

    公开(公告)日:2020-07-23

    申请号:US16251243

    申请日:2019-01-18

    摘要: Aspects include accessing, by a processing system, one or more data records and a metadata record. The metadata record includes a first digital signature associated with the one or more data records. One or more additional digital signatures associated with the one or more data records are generated, where the first digital signature and the one or more additional digital signatures are generated based on applying at least one different digital signature generation aspect with respect to the one or more data records. The one or more additional digital signatures are stored in the metadata record.

    Event log tamper resistance
    7.
    发明授权

    公开(公告)号:US11295031B2

    公开(公告)日:2022-04-05

    申请号:US16595563

    申请日:2019-10-08

    摘要: Embodiments are described for generating, by the processor, a first event record in response to an event being performed by the computer and generating, by the processor, a first tamper resistance record in response to the first event record being generated. The first tamper resistance record includes a first signature is created based at least in part on the first event record and a second signature is created based at least in part on the first event record. Aspects also includes validating the first event record based on the first signature and the second signature in the first tamper resistance record in response to a request to detect tampering of the first event record.

    Data compression using dictionary encoding

    公开(公告)号:US10666289B1

    公开(公告)日:2020-05-26

    申请号:US16249029

    申请日:2019-01-16

    IPC分类号: H03M7/40

    摘要: Embodiments of the present invention are directed to a computer-implemented method for data compression. The method includes monitoring data, from a data stream, stored in an input buffer and system memory of a data compression system. The method further includes choosing an encoding scheme based in part upon the amount of data in the input buffer. The method further includes encoding data using the encoding scheme to compress the data from the data stream. The method further includes reevaluating, during the data stream, an encoding scheme choice based in part upon the amount of data in the input buffer.