doc

Direct Anonymous Attestation in the Wild

Direct Anonymous Attestationbased on Elliptic Curve CryptographyA feasibility Study for RFID

A Symbolic Analysis of ECC-based DirectAnonymous Attestation

correctness, unforgeability, unclonability, unlinkability (full anonymity), revokability, practicability

mobile

Lightweight Anonymous Authentication with TLS and DAA for Embedded Mobile Devices

通过hsm避免credential copy

  • issuer在工厂向mobile device的secure element(例如tpm)写入cred

校验:

  • verifier 发送一个挑战码N;
  • mobile device的host生成一个随机数t,将cred映射为cred’; 并将N, cred’等相关信息发给mobile device的secure element
  • mobile device的secure element基于之前存储的secret值,结合收到的信息,计算签名。
  • mobile device的host将签名、cred’返回给verifier校验

底层运算细节基于pairing curve

pba

Property-Based Attestation without a Trusted Third Party

基于 ring signature,校验是否满足某一属性

tpm仅计算一个signature,host伪装构造出y1, …, yn

rats

Direct Anonymous Attestation for the Remote Attestation Procedures Architecture

DAA Issuer 为 Attester 签发 credential

Attester 通过anonymous attestation,向 Verifier 提交证明

由于anonymous attestation已随机化,与credential之间无关,不论DAA Issuer/Verifier都对Attester unlinkable

v2x

Privacy-enhanced capabilities for VANETs using direct anonymous attestation, slide

Securing V2X Communications for the Future: Can PKI Systems offer the answer?



Published

30 September 2020

Tags


Share On