public void OwnershipProofVerification()
{
// [all all all all all all all all all all all all]/84'/0'/0'/1/0
using var key = new Key(Encoders.Hex.DecodeData("3460814214450E864EC722FF1F84F96C41746CD6BBE2F1C09B33972761032E9F"));
var ownershipIdentifier = new OwnershipIdentifier(Encoders.Hex.DecodeData("A122407EFC198211C81AF4450F40B235D54775EFD934D16B9E31C6CE9BAD5707"));
var commitmentData = Encoders.Hex.DecodeData("A42E38EF564D4B05B65575D22553BB1F264332D77F8A61159ABF3E6179B0317C");
var scriptPubKey = PayToWitPubKeyHashTemplate.Instance.GenerateScriptPubKey(key.PubKey);
OwnershipProof ownershipProof, invalidOwnershipProof;
// Valid proofs
ownershipProof = OwnershipProof.Generate(key, ownershipIdentifier, commitmentData, true, ScriptPubKeyType.Segwit);
Assert.True(ownershipProof.VerifyOwnership(scriptPubKey, commitmentData, false));
Assert.True(ownershipProof.VerifyOwnership(scriptPubKey, commitmentData, true));
ownershipProof = OwnershipProof.Generate(key, ownershipIdentifier, commitmentData, false, ScriptPubKeyType.Segwit);
Assert.True(ownershipProof.VerifyOwnership(scriptPubKey, commitmentData, false));
// Valid proof, modified user confirmation flag
Assert.False(ownershipProof.VerifyOwnership(scriptPubKey, commitmentData, true));
// Valid proof, modified commitment data
var invalidCommitmentData = commitmentData.ToArray();
invalidCommitmentData[0] ^= 1;
Assert.False(ownershipProof.VerifyOwnership(scriptPubKey, invalidCommitmentData, false));
// Valid proof, invalid scriptPubKey
// [all all all all all all all all all all all all]/84'/0'/0'/1/1
var invalidKey = new Key(Encoders.Hex.DecodeData("7b041dd735e7202d3c1b9592147894ed24da6355f0cd66573c273c0df1afa78a"));
var invalidScriptPubKey = PayToWitPubKeyHashTemplate.Instance.GenerateScriptPubKey(invalidKey.PubKey);
Assert.False(ownershipProof.VerifyOwnership(invalidScriptPubKey, commitmentData, false));
// Invalid proof, modified ownership identifier
var invalidOwnershipIdentifierBytes = ownershipIdentifier.ToBytes();
invalidOwnershipIdentifierBytes[0] ^= 1;
invalidOwnershipProof = new OwnershipProof(
new ProofBody(ownershipProof.ProofBody.Flags, new OwnershipIdentifier(invalidOwnershipIdentifierBytes)),
ownershipProof.ProofSignature);
Assert.False(invalidOwnershipProof.VerifyOwnership(scriptPubKey, commitmentData, false));
// Invalid proof, modified r part of signature in witness
var invalidSignature = ownershipProof.ProofSignature.Witness[0].ToArray();
invalidSignature[4] ^= 1;
invalidOwnershipProof = new OwnershipProof(
ownershipProof.ProofBody,
new Bip322Signature(ownershipProof.ProofSignature.ScriptSig, new WitScript(new byte[][] { invalidSignature, ownershipProof.ProofSignature.Witness[1] })));
Assert.False(invalidOwnershipProof.VerifyOwnership(scriptPubKey, commitmentData, false));
}
public void OwnershipProofEncodingDecoding()
{
// Trezor test vector
// [all all all all all all all all all all all all]/84'/0'/0'/1/0
using var key = new Key(Encoders.Hex.DecodeData("3460814214450E864EC722FF1F84F96C41746CD6BBE2F1C09B33972761032E9F"));
var ownershipIdentifier = new OwnershipIdentifier(Encoders.Hex.DecodeData("A122407EFC198211C81AF4450F40B235D54775EFD934D16B9E31C6CE9BAD5707"));
var commitmentData = Array.Empty <byte>();
var ownershipProof = OwnershipProof.Generate(key, ownershipIdentifier, commitmentData, false, ScriptPubKeyType.Segwit);
var scriptPubKey = PayToWitPubKeyHashTemplate.Instance.GenerateScriptPubKey(key.PubKey);
var ownershipProofBytes = Encoders.Hex.DecodeData("534c00190001a122407efc198211c81af4450f40b235d54775efd934d16b9e31c6ce9bad57070002483045022100e5eaf2cb0a473b4545115c7b85323809e75cb106175ace38129fd62323d73df30220363dbc7acb7afcda022b1f8d97acb8f47c42043cfe0595583aa26e30bc8b3bb50121032ef68318c8f6aaa0adec0199c69901f0db7d3485eb38d9ad235221dc3d61154b");
Assert.True(ownershipProofBytes.SequenceEqual(ownershipProof.ToBytes()));
var deserializedOwnershipProof = OwnershipProof.FromBytes(ownershipProofBytes);
Assert.True(ownershipProofBytes.SequenceEqual(deserializedOwnershipProof.ToBytes()));
}
public void OwnershipProofEncodingDecoding()
{
// Trezor test vector
// [all all all all all all all all all all all all]/84'/0'/0'/1/0
var allMnemonic = new Mnemonic("all all all all all all all all all all all all");
var identificationMasterKey = Slip21Node.FromSeed(allMnemonic.DeriveSeed());
var identificationKey = identificationMasterKey.DeriveChild("SLIP-0019").DeriveChild("Ownership identification key").Key;
using var key = new Key(Encoders.Hex.DecodeData("3460814214450E864EC722FF1F84F96C41746CD6BBE2F1C09B33972761032E9F"));
var ownershipIdentifier = new OwnershipIdentifier(identificationKey, key.PubKey.WitHash.ScriptPubKey);
var commitmentData = Array.Empty <byte>();
var ownershipProof = OwnershipProof.Generate(key, ownershipIdentifier, commitmentData, false, ScriptPubKeyType.Segwit);
var scriptPubKey = PayToWitPubKeyHashTemplate.Instance.GenerateScriptPubKey(key.PubKey);
var ownershipProofBytes = Encoders.Hex.DecodeData("534c00190001a122407efc198211c81af4450f40b235d54775efd934d16b9e31c6ce9bad57070002483045022100c0dc28bb563fc5fea76cacff75dba9cb4122412faae01937cdebccfb065f9a7002202e980bfbd8a434a7fc4cd2ca49da476ce98ca097437f8159b1a386b41fcdfac50121032ef68318c8f6aaa0adec0199c69901f0db7d3485eb38d9ad235221dc3d61154b");
Assert.True(ownershipProofBytes.SequenceEqual(ownershipProof.ToBytes()));
var deserializedOwnershipProof = OwnershipProof.FromBytes(ownershipProofBytes);
Assert.True(ownershipProofBytes.SequenceEqual(deserializedOwnershipProof.ToBytes()));
}