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    A PRIVACY-PRESERVING, MUTUAL PUF-BASED AUTHENTICATION PROTOCOL
    1.
    发明公开
    A PRIVACY-PRESERVING, MUTUAL PUF-BASED AUTHENTICATION PROTOCOL 审中-公开

    公开(公告)号：EP3403209A1

    公开(公告)日：2018-11-21

    申请号：EP17738856.8

    申请日：2017-01-11

    Applicant: STC.UNM

    Inventor： PLUSQUELLIC, James ,  CHE, Wenjie ,  ISMARI, Dylan

    IPC: G06F21/30 ,  G06F21/70

    CPC classification number: G06F21/30 ,  G06F21/44 ,  G06F21/70 ,  H04L9/0662 ,  H04L9/3278

    Abstract: An authentication protocol using a Hardware-Embedded Delay PUF ("HELP"), which derives randomness from within-die path delay variations that occur along the paths within a hardware implementation of a cryptographic primitive, for example, the Advanced Encryption Standard ("AES") algorithm or Secure Hash Algorithm 3 ("SHA-3"). The digitized timing values which represent the path delays are stored in a database on a secure server (verifier) as an alternative to storing PUF response bitstrings thereby enabling the development of an efficient authentication protocol that provides both privacy and mutual authentication.

    SYSTEMS AND METHODS FOR ANALYZING STABILITY USING METAL RESISTANCE VARIATIONS
    2.
    发明申请
    SYSTEMS AND METHODS FOR ANALYZING STABILITY USING METAL RESISTANCE VARIATIONS 审中-公开
    使用金属电阻变化分析稳定性的系统和方法

    公开(公告)号：WO2015031685A1

    公开(公告)日：2015-03-05

    申请号：PCT/US2014/053279

    申请日：2014-08-28

    Applicant: STC.UNM

    Inventor： PLUSQUELLIC, James

    IPC: G06F11/10

    CPC classification number: G06F7/588 ,  G06F2207/58 ,  G09C1/00 ,  H04L9/002 ,  H04L9/0866 ,  H04L2209/12 ,  H04L2209/26 ,  Y04S40/24

    Abstract: This disclosure describes techniques for analyzing statistical quality of bitstrings produced by a physical unclonable function (PUF). The PUF leverages resistance variations in the power grid wires of an integrated circuit. Temperature and voltage stability of the bitstrings are analyzed. The disclosure also describes converting a voltage drop into a digital code, wherein the conversion is resilient to simple and differential side-channel attacks.

    Abstract translation: 本公开描述了用于分析由物理不可克隆功能（PUF）产生的位串的统计质量的技术。 PUF利用集成电路的电网线的电阻变化。 分析了串串的温度和电压稳定性。 本公开还描述了将电压降转换成数字代码，其中转换对于简单和差异的侧向信道攻击具有弹性。

    RELIABILITY ENHANCEMENT METHODS FOR PHYSICALLY UNCLONABLE FUNCTION BITSTRING GENERATION
    4.
    发明公开
    RELIABILITY ENHANCEMENT METHODS FOR PHYSICALLY UNCLONABLE FUNCTION BITSTRING GENERATION 审中-公开
    物理无功功率比特生成的可靠性增强方法

    公开(公告)号：EP3234857A1

    公开(公告)日：2017-10-25

    申请号：EP15870916.2

    申请日：2015-12-15

    Applicant: STC.UNM

    Inventor： PLUSQUELLIC, James

    IPC: G06F21/73 ,  G06F21/70

    CPC classification number: G06F21/73 ,  G06F17/18 ,  G06F21/604 ,  G06F21/70 ,  G06F21/71 ,  G09C1/00 ,  H04L9/3278

    Abstract: A Hardware-Embedded Delay Physical Unclonable Function (“HELP PUF”) leverages entropy by monitoring path stability and measuring path delays from core logic macros. Reliability and security enhancing techniques for the HELP PUF reduce bit flip errors during regeneration of the bitstring across environmental variations and improve cryptographic strength along with the corresponding difficulty of carrying out model building attacks. A voltage-based enrollment process screens unstable paths on normally synthesized (glitchy) functional units and reduces bit flip errors by carrying out enrollment at multiple supply voltages controlled using on-chip voltage regulators.

    Abstract translation: 硬件嵌入式延迟物理不可克隆功能（“HELP PUF”）通过监测路径稳定性和测量来自核心逻辑宏的路径延迟来利用熵。 HELP PUF的可靠性和安全性增强技术减少了跨越环境变化的比特串再生期间的位翻转错误，并提高了加密强度以及执行模型构建攻击的相应难度。 基于电压的登记过程可以屏蔽正常合成（不良）功能单元上的不稳定路径，并通过在使用片上稳压器控制的多个电源电压下执行登记来减少位翻转错误。

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