Serialize an ECDSA signature in compact (64 byte) format.
1 Args: ctx: a secp256k1 context object Out: output64: a pointer to a 64-byte array to store the compact serialization In: sig: a pointer to an initialized signature object
See secp256k1_ecdsa_signature_parse_compact for details about the encoding.
See Implementation
Serialize an ECDSA signature in compact (64 byte) format.