Message signing with BLS should produce a signature.
The test data is declared in a data.yaml file:
input:
privkey: bytes32 -- the private key used for signing
message: bytes32 -- input message to sign (a hash)
output: BLS Signature -- expected output, single BLS signature or `null`.- All byte(s) fields are encoded as strings, hexadecimal encoding, prefixed with
0x. - output value is
nullif the input is invalid.
The sign handler should sign message with privkey, and the resulting signature should match the expected output.