v0.8.0

Added

• Blind signing feature
• PPID feature
• domain parameter to derive_proof and verify_proof
• Allow inclusion of committed secrets in VP, generated by derived_proof, for using VP as an issuance request for bound VC
• Helper functions for mutual conversion between ark object and multibase
• Set current datetime for created if not provided
• Type aliases to abstract cryptographic structs like Bls12_381, SignatureParamsG1, and so forth

Changed

• Rename nonce to challenge
• Modify sign, sign_string, blind_sign, blind_sign_string to generate the entire proof, not just the proof value
• Simplify serialization and deserialization of proofValue (ProofWithIndexMap) and serialization of proof spec context (ProofSpecContext)