ethereum-compatibility-test.go

	// test compatibility with ethereum signatures
	t.Run("eth_compatibility", func(t *testing.T) {
		/*
			pip install eth-keys pycryptodome

			from eth_keys import keys

			pk = keys.PrivateKey(b"\xb2\\}\xb3\x1f\xee\xd9\x12''\xbf\t9\xdcv\x9a\x96VK-\xe4\xc4rm\x03[6\xec\xf1\xe5\xb3d")

			msg=b"hello from ethereum"
			print("msg: '{}'".format(msg.decode()))

			signature = pk.sign_msg(msg)
			print("v:", signature.v)
			print("r:", signature.r.to_bytes(32, byteorder="big").hex())
			print("s:", signature.s.to_bytes(32, byteorder="big").hex())

			print("addr:", pk.public_key.to_address())
		*/
		progText := `byte "hello from ethereum" // msg
keccak256
int 0 // v
byte 0x745e8f55ac6189ee89ed707c36694868e3903988fbf776c8096c45da2e60c638 // r
byte 0x30c8e4a9b5d2eb53ddc6294587dd00bed8afe2c45dd72f6b4cf752e46d5ba681 // s
ecdsa_pk_recover Secp256k1
concat // convert public key X and Y to ethereum addr
keccak256
substring 12 32
byte 0x5ce9454909639d2d17a3f753ce7d93fa0b9ab12e // addr
==
`
		testAccepts(t, progText, 5)
	})