Threshold anonymous credentials using Coconut

• Based on the paper Security Analysis of Coconut, an Attribute-Based Credential Scheme with Threshold Issuance.
• Contains a modified implementation of PS (Pointcheval-Sanders) signature, as described in the above paper.

lib.rs:

Threshold anonymous credentials using Coconut

• Based on the paper Security Analysis of Coconut, an Attribute-Based Credential Scheme with Threshold Issuance.
• Contains a modified implementation of PS (Pointcheval-Sanders) signature, as described in the above paper.