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| // you must provide the account hex, signature hex and the message wrapped with <Bytes>...</Bytes> | |
| // To get the hex from the account you can do: | |
| // import { u8aToHex, u8aToU8a } from "@polkadot/util"; | |
| // const hexPublicKey = u8aToHex(decodeAddress(account.address)); | |
| func TestVerifySR25519(t *testing.T) { | |
| const pubhex = "0xf84d048da2ddae2d9d8fd6763f469566e8817a26114f39408de15547f6d47805" | |
| const sighex = "0x48ce2c90e08651adfc8ecef84e916f6d1bb51ebebd16150ee12df247841a5437951ea0f9d632ca165e6ab391532e75e701be6a1caa88c8a6bcca3511f55b4183" | |
| const challenge = "<Bytes>message to sign</Bytes>" | |
| verifySR25519( | |
| t, | |
| pubhex, | |
| sighex, | |
| challenge, | |
| ) | |
| } | |
| func verifySR25519(t *testing.T, address, signature, challenge string) { | |
| // decodes the public hex to a schnorrkel.PublicKey | |
| pub, err := schnorrkel.NewPublicKeyFromHex(address) | |
| require.NoError(t, err) | |
| // decodes the signature hex to a schnorrkel.Signature | |
| sig, err := schnorrkel.NewSignatureFromHex(signature) | |
| require.NoError(t, err) | |
| // this is the ctx the polkadot-js uses to create the signature | |
| ctx := []byte("substrate") | |
| // creates the SigningContext using the wrapped message | |
| transcript := schnorrkel.NewSigningContext(ctx, []byte(challenge)) | |
| // verify the signature using the public key and the signing context | |
| ok, err := pub.Verify(sig, transcript) | |
| require.NoError(t, err) | |
| require.True(t, ok) | |
| } |
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