Crate syra

Crate syra 

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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

Modules§

error
pseudonym
Generate a pseudonym. This is generated by following the protocol described in section 4 of the paper.
pseudonym_alt
A more efficient protocol generating pseudonym and corresponding proof of knowledge
setup
threshold_issuance
Threshold issuance in SyRA. The secret key is shared among signers using Shamir secret sharing, and they jointly generate SyRA VRF.
vrf
Asymmetric Dodis-Yampolskiy VRF