Function secp256k1_abc_sys::secp256k1_ecdsa_signature_parse_compact

pub unsafe extern "C" fn secp256k1_ecdsa_signature_parse_compact(
    ctx: *const secp256k1_context, 
    sig: *mut secp256k1_ecdsa_signature, 
    input64: *const c_uchar
) -> c_int

Parse an ECDSA signature in compact (64 bytes) format.

Returns: 1 when the signature could be parsed, 0 otherwise. Args: ctx: a secp256k1 context object Out: sig: a pointer to a signature object In: input64: a pointer to the 64-byte array to parse

The signature must consist of a 32-byte big endian R value, followed by a 32-byte big endian S value. If R or S fall outside of [0..order-1], the encoding is invalid. R and S with value 0 are allowed in the encoding.

After the call, sig will always be initialized. If parsing failed or R or S are zero, the resulting sig value is guaranteed to fail validation for any message and public key.