Struct ECDSAProof

pub struct ECDSAProof { /* private fields */ }

An ECDSAProof links the ECDSA signature from the SecureElement to the BBSPresentation::close messages in zero-knowledge. The commitments are randomized representations of the holder’s public key. The proofs link these commitments to the message to be signed, and between each other.

Implementations

impl ECDSAProof

pub fn new( setup: PublicSetup, holder_pub: SecP256Affine, vc: VerifiedCredential, bbs_presentation: BBSPresentation, ecdsa_signature: Signature, verifier_message: VerifierMessage, ) -> Self

Create a new proof that the public key stored in a commitment can be used to verify a signature. This follows the excellent work done by Lovesh in docknetwork/crypto.

pub fn verify( &self, setup: PublicSetup, message: SecP256Fr, presentation: &BBSPresentation, issuer_pub: &PublicKeyG2<Bls12_381>, )

Verifies that the commitments to the signature and the public key of the holder verify the message from the verifier. The BBSPresentation is used for the commitments to the holder’s public key.

pub fn get_sizes(&self) -> HashMap<&str, usize>

Returns the sizes of the different proofs.

pub fn to_json(&self) -> String

Returns the json string of the structure.

Trait Implementations

impl Clone for ECDSAProof

fn clone(&self) -> ECDSAProof

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Display for ECDSAProof

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Serialize for ECDSAProof

Thanks to ChatGPT for this serialization stub.

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.