CoSigV1Timestamp extracts the embedded timestamp from a CoSigV1 signature.

NewECDSAVerifier creates a new note verifier for checking ECDSA signatures over SHA256 digests.

NewRFC6962Verifier creates a note verifier for Sunlight/RFC6962 checkpoint signatures.

NewSignerForCosignatureV1 constructs a new Signer that produces timestamped cosignature/v1 signatures from a standard Ed25519 encoded signer key.

NewVerifier returns a verifier for the given key, if the key's algo is known.

NewVerifierForCosignatureV1 constructs a new Verifier for timestamped cosignature/v1 signatures from a standard Ed25519 encoded verifier key.

RFC6962STHTimestamp extracts the embedded timestamp from a translated RFC6962 STH signature.

RFC6962STHToCheckpoint converts the provided RFC6962 JSON representation of a CT Signed Tree Head structure to a sunlight style signed checkpoint.

RFC6962VerifierString creates a note style verifier string for use with NewRFC6962Verifier below.

CT Version constants from section 3.2.