#decentralized-identity #pseudonym #threshold-sig #dodis-yampolskiy-vrf #sybil-resistance

no-std syra

SyRA: Sybil-Resilient Anonymous Signatures with Applications to Decentralized Identity

2 unstable releases

0.2.0 Feb 24, 2025
0.1.0 Dec 19, 2024

#1561 in Cryptography

Download history 108/week @ 2024-12-18 121/week @ 2025-02-19 37/week @ 2025-02-26

158 downloads per month

Apache-2.0

465KB
10K SLoC

Implements the protocol from the paper SyRA: Sybil-Resilient Anonymous Signatures with Applications to Decentralized Identity

This will be used to generate pseudonym for low-entropy user attributes. The issuer will create "signature" for a unique user attribute and user uses this "signature" to create the pseudonym.

Also implements the threshold issuance of SyRA signatures

A more efficient protocol generating pseudonym and corresponding proof of knowledge is implemented in the module pseudonym_alt


lib.rs:

Implements the protocol from the paper SyRA: Sybil-Resilient Anonymous Signatures with Applications to Decentralized Identity

This will be used to generate pseudonym for low-entropy user attributes. The issuer will create "signature" for a unique user attribute and user uses this "signature" to create the pseudonym.

Also implements the threshold issuance of SyRA signatures

A more efficient protocol generating pseudonym and corresponding proof of knowledge is implemented in the module pseudonym_alt

Dependencies

~7–15MB
~200K SLoC