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    REDACTABLE DOCUMENT SIGNATURES
    1.
    发明申请
    REDACTABLE DOCUMENT SIGNATURES 审中-公开

    公开(公告)号：US20190158296A1

    公开(公告)日：2019-05-23

    申请号：US16260808

    申请日：2019-01-29

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Stuart Haber ,  William G. Horne ,  Miaomiao Zhang

    IPC: H04L9/32 ,  G06F16/93 ,  G06F21/64

    CPC classification number: H04L9/3247 ,  G06F16/93 ,  G06F21/64 ,  G06F2221/2123 ,  H04L9/3242

    Abstract: In one implementation, a redactable document signature system includes an encoding engine, a reordering engine, and a signature engine. The encoding engine is to access a plurality of subdocuments of a document, to generate a plurality of commitment values from the plurality of subdocuments, and to generate a plurality of dummy values. Each dummy value is indistinguishable from a commitment value. The reordering engine is to define an order of the plurality of commitment values and the plurality of dummy values independent of an order of the subdocuments. The signature engine is to calculate a signature value for the document using the plurality of commitment values and the plurality of dummy values according to the order.

    Redactable document signatures
    2.
    发明授权
    Redactable document signatures 有权

    公开(公告)号：US10237074B2

    公开(公告)日：2019-03-19

    申请号：US15302980

    申请日：2014-04-08

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Stuart Haber ,  William G. Horne ,  Miaomiao Zhang

    IPC: H04L9/32 ,  G06F17/30 ,  G06F21/64

    Abstract: In one implementation, a redactable document signature system includes an encoding engine, a reordering engine, and a signature engine. The encoding engine is to access a plurality of subdocuments of a document, to generate a plurality of commitment values from the plurality of subdocuments, and to generate a plurality of dummy values. Each dummy value is indistinguishable from a commitment value. The reordering engine is to define an order of the plurality of commitment values and the plurality of dummy values independent of an order of the subdocuments. The signature engine is to calculate a signature value for the document using the plurality of commitment values and the plurality of dummy values according to the order.

    INPUT/OUTPUT DATA ENCRYPTION
    4.
    发明申请
    INPUT/OUTPUT DATA ENCRYPTION 审中-公开

    公开(公告)号：US20180365451A1

    公开(公告)日：2018-12-20

    申请号：US15420736

    申请日：2017-01-31

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Geoffrey Ndu ,  Pratyusa K. Manadhata ,  Christopher I. Dalton ,  Adrian Shaw ,  Stuart Haber

    IPC: G06F21/78 ,  G06F21/60 ,  G06F21/72 ,  H04L9/06

    Abstract: Examples relate to Input/Output (I/O) data encryption and decryption. In an example, an encryption/decryption engine on an Integrated Circuit (IC) of a computing device obtains at least one plaintext data. Some examples determine, by the encryption/decryption engine, whether the at least one plaintext data is to be sent to a memory in the computing device or to an I/O device. Some examples apply, when the at least one plaintext data is to be sent to the I/O device and by the encryption/decryption engine, an encryption primitive of a block cipher encryption algorithm to the at least one plaintext data to create output encrypted data, wherein an initialization vector that comprises a random number is applied to the encryption primitive.

    REDACTABLE DOCUMENT SIGNATURES
    5.
    发明申请
    REDACTABLE DOCUMENT SIGNATURES 审中-公开
    可撤销的文件签名

    公开(公告)号：US20170033933A1

    公开(公告)日：2017-02-02

    申请号：US15302980

    申请日：2014-04-08

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Stuart Haber ,  William G. HORNE ,  Miaomiao ZHANG

    IPC: H04L9/32 ,  G06F17/30

    CPC classification number: H04L9/3247 ,  G06F17/30011 ,  G06F21/64 ,  G06F2221/2123 ,  H04L9/3242

    Abstract: In one implementation, a redactable document signature system includes an encoding engine, a reordering engine, and a signature engine. The encoding engine is to access a plurality of subdocuments of a document, to generate a plurality of commitment values from the plurality of subdocuments, and to generate a plurality of dummy values. Each dummy value is indistinguishable from a commitment value. The reordering engine is to define an order of the plurality of commitment values and the plurality of dummy values independent of an order of the subdocuments. The signature engine is to calculate a signature value for the document using the plurality of commitment values and the plurality of dummy values according to the order.

    Abstract translation: 在一个实现中，可修改的文档签名系统包括编码引擎，重新排序引擎和签名引擎。 编码引擎是访问文档的多个子文档，以从多个子文档生成多个承诺值，并生成多个虚拟值。 每个虚拟值与承诺值无法区分。 重新排序引擎是定义独立于子文档顺序的多个承诺值和多个虚拟值的顺序。 签名引擎是根据顺序使用多个承诺值和多个虚拟值来计算文档的签名值。

    Redactable document signatures
    10.
    发明授权
    Redactable document signatures 有权

    公开(公告)号：US10778441B2

    公开(公告)日：2020-09-15

    申请号：US16260808

    申请日：2019-01-29

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Stuart Haber ,  William G. Horne ,  Miaomiao Zhang

    IPC: H04L29/06 ,  H04L9/32 ,  G06F16/93 ,  G06F21/64

    Abstract: In one implementation, a redactable document signature system includes an encoding engine, a reordering engine, and a signature engine. The encoding engine is to access a plurality of subdocuments of a document, to generate a plurality of commitment values from the plurality of subdocuments, and to generate a plurality of dummy values. Each dummy value is indistinguishable from a commitment value. The reordering engine is to define an order of the plurality of commitment values and the plurality of dummy values independent of an order of the subdocuments. The signature engine is to calculate a signature value for the document using the plurality of commitment values and the plurality of dummy values according to the order.

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