eth2.0-specs/specs/test_formats/bls/sign_msg.md

Test format: BLS sign message

Message signing with BLS should produce a signature.

Test case format

input:
  privkey: bytes32 -- the private key used for signing
  message: bytes32 -- input message to sign (a hash)
  domain: bytes    -- BLS domain
output: bytes96    -- expected signature

All byte(s) fields are encoded as strings, hexadecimal encoding, prefixed with 0x.

Condition

The sign_msg handler should sign the given message, with domain, using the given privkey, and the result should match the expected output.