New returns a new signer and a new verifier.

RestoreSignature restores an existing signature.

RestoreThresholdSignature should only be used to restore an existing threshold signature from a set of signatures.

PrivateKeyFileType is the PEM type for a private key.

PublicKeyFileType is the PEM type for a public key.

Signature is an ECDSA signature.

ThresholdSignature is a set of (partial) signatures that form a valid threshold signature when there are a quorum of valid (partial) signatures.