Exemplo n.º 1
0
        public void RunRule_ProvenHeadersActive_And_InvalidMerkleProof_BadMerkleProofErrorIsThrown()
        {
            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock          posBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build(prevProvenBlockHeader);

            provenBlockHeader.PosBlockHeader.HashPrevBlock = prevProvenBlockHeader.GetHash();
            if (provenBlockHeader.Coinstake is IPosTransactionWithTime posTrx)
            {
                posTrx.Time = provenBlockHeader.Time;
            }

            // Corrupt merkle proof.
            provenBlockHeader.SetPrivateVariableValue("merkleProof", new PartialMerkleTree(new[] { new uint256(1234) }, new[] { false }));

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 2);

            // Ensure that coinview returns a UTXO with valid outputs.
            var utxoOne = new UnspentOutput(prevPosBlock.Transactions[1].Inputs[0].PrevOut, new Coins((uint)previousChainedHeader.Height, new TxOut(), false, true));

            // Setup coinstake transaction with a valid stake age.
            var res = new FetchCoinsResponse();

            res.UnspentOutputs.Add(utxoOne.OutPoint, utxoOne);

            this.coinView
            .Setup(m => m.FetchCoins(It.IsAny <OutPoint[]>()))
            .Returns(res);

            // Setup stake validator to pass stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutput>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(false);

            // Setup stake validator to pass signature validation.
            this.stakeValidator
            .Setup(m => m.VerifySignature(It.IsAny <UnspentOutput>(), It.IsAny <Transaction>(), It.IsAny <int>(), It.IsAny <ScriptVerify>()))
            .Returns(true);

            // Setup stake validator to pass stake kernel hash validation.
            this.stakeChain.Setup(m => m.Get(It.IsAny <uint256>())).Returns(new BlockStake());
            this.stakeValidator
            .Setup(m => m.CheckStakeKernelHash(It.IsAny <PosRuleContext>(), It.IsAny <uint>(), It.IsAny <uint256>(), It.IsAny <UnspentOutput>(), It.IsAny <OutPoint>(), It.IsAny <uint>())).Returns(true);

            // When we run the validation rule, we should hit bad merkle proof error.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().Throw <ConsensusErrorException>()
            .And.ConsensusError
            .Should().Be(ConsensusErrors.BadMerkleRoot);
        }
        private bool WasUtxoSelectedForStaking(Network network, int chainTipHeight, int utxoHeight)
        {
            this.network = network;
            this.network.Consensus.Options = new PosConsensusOptions();
            this.chain = GenerateChainWithBlockTimeAndHeight(2, this.network, 60, 0x1df88f6f);

            PosMinting miner = this.InitializePosMinting();

            ChainedHeader chainTip = this.chain.Tip;

            chainTip.SetPrivatePropertyValue("Height", chainTipHeight);
            chainTip.Previous.SetPrivatePropertyValue("Height", utxoHeight);

            var descriptions = new List <UtxoStakeDescription>();

            var utxoDescription = new UtxoStakeDescription();

            utxoDescription.TxOut     = new TxOut(new Money(100), new Mock <IDestination>().Object);
            utxoDescription.OutPoint  = new OutPoint(uint256.One, 0);
            utxoDescription.HashBlock = chainTip.Previous.HashBlock;

            utxoDescription.UtxoSet = new UnspentOutputs();
            utxoDescription.UtxoSet.SetPrivatePropertyValue("Time", chainTip.Header.Time);

            descriptions.Add(utxoDescription);

            List <UtxoStakeDescription> suitableCoins = miner.GetUtxoStakeDescriptionsSuitableForStakingAsync(descriptions, chainTip, chainTip.Header.Time + 64, long.MaxValue).GetAwaiter().GetResult();

            return(suitableCoins.Count == 1);
        }
        public void RunRule_ProvenHeadersActive_And_InvalidCoinstakeKernelSignature_BadBlockSignatureErrorIsThrown()
        {
            // Setup private key.
            var mnemonic   = new Mnemonic(Wordlist.English, WordCount.Twelve);
            Key privateKey = mnemonic.DeriveExtKey().PrivateKey;

            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network, privateKey).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.options.ProvenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock posBlock = new PosBlockBuilder(this.network, privateKey).Build();

            posBlock.UpdateMerkleRoot();
            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build();

            provenBlockHeader.HashPrevBlock  = prevProvenBlockHeader.GetHash();
            provenBlockHeader.Coinstake.Time = provenBlockHeader.Time;

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.options.ProvenHeadersActivationHeight + 2);

            // Setup coinstake transaction with a valid stake age.
            uint unspentOutputsHeight = (uint)this.options.ProvenHeadersActivationHeight + 10;

            var unspentOutputs = new UnspentOutputs(unspentOutputsHeight, new Transaction())
            {
                Outputs = new[] { new TxOut(new Money(100), privateKey.PubKey) }
            };

            this.coinView
            .Setup(m => m.FetchCoinsAsync(It.IsAny <uint256[]>(), It.IsAny <CancellationToken>()))
            .ReturnsAsync(new FetchCoinsResponse(new[] { unspentOutputs }, posBlock.GetHash()));

            // Setup stake validator to pass signature validation.
            this.stakeValidator
            .Setup(m => m.VerifySignature(It.IsAny <UnspentOutputs>(), It.IsAny <Transaction>(), It.IsAny <int>(), It.IsAny <ScriptVerify>()))
            .Returns(true);

            // Setup stake validator to pass stake kernel hash validation.
            this.stakeChain.Setup(m => m.Get(It.IsAny <uint256>())).Returns(new BlockStake());
            this.stakeValidator
            .Setup(m => m.CheckStakeKernelHash(It.IsAny <PosRuleContext>(), It.IsAny <uint>(), It.IsAny <uint256>(), It.IsAny <UnspentOutputs>(), It.IsAny <OutPoint>(), It.IsAny <uint>()));

            // Setup stake validator to pass stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutputs>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(true);

            // When we run the validation rule, we should hit bad merkle proof error.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().Throw <ConsensusErrorException>()
            .And.ConsensusError
            .Should().Be(ConsensusErrors.BadBlockSignature);
        }
Exemplo n.º 4
0
        public void RunRule_ProvenHeadersActive_And_NullPreviousStake_InvalidPreviousProvenHeaderStakeModifierErrorIsThrown()
        {
            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();

            prevProvenBlockHeader.StakeModifierV2 = null; // Forcing previous stake modifier to null.
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock          posBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build();

            provenBlockHeader.PosBlockHeader.HashPrevBlock = prevProvenBlockHeader.GetHash();
            if (provenBlockHeader.Coinstake is IPosTransactionWithTime posTrx)
            {
                posTrx.Time = provenBlockHeader.Time;
            }

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 2);

            // Ensure that coinview returns a UTXO with valid outputs.
            var utxoOneTransaction = this.network.CreateTransaction();

            utxoOneTransaction.AddOutput(new TxOut());
            var utxoOne = new UnspentOutput(new OutPoint(utxoOneTransaction, 0), new Coins((uint)this.provenHeadersActivationHeight + 10, utxoOneTransaction.Outputs.First(), false));

            // Setup coinstake transaction with a valid stake age.
            var res = new FetchCoinsResponse();

            res.UnspentOutputs.Add(utxoOne.OutPoint, utxoOne);

            this.coinView
            .Setup(m => m.FetchCoins(It.IsAny <OutPoint[]>()))
            .Returns(res);

            // Setup stake validator to pass stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutput>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(false);

            // Setup stake validator to pass signature validation.
            this.stakeValidator
            .Setup(m => m.VerifySignature(It.IsAny <UnspentOutput>(), It.IsAny <Transaction>(), It.IsAny <int>(), It.IsAny <ScriptVerify>()))
            .Returns(true);

            // When we run the validation rule, we should hit previous stake null error.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().Throw <ConsensusErrorException>()
            .And.ConsensusError
            .Should().Be(ConsensusErrors.InvalidPreviousProvenHeaderStakeModifier);
        }
Exemplo n.º 5
0
        public void InvalidStakeKernelHash_CoinstakeVerifySignatureErrorIsThrown()
        {
            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock          posBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build(prevProvenBlockHeader);

            provenBlockHeader.HashPrevBlock = prevProvenBlockHeader.GetHash();

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 2);

            // Ensure that coinview returns a UTXO with valid outputs.
            var utxoOneTransaction = this.network.CreateTransaction();

            utxoOneTransaction.AddOutput(new TxOut());
            var utxoOne = new UnspentOutput(new OutPoint(utxoOneTransaction, 0), new Coins((uint)this.provenHeadersActivationHeight + 10, utxoOneTransaction.Outputs.First(), false));

            // Setup coinstake transaction with a valid stake age.
            var res = new FetchCoinsResponse();

            res.UnspentOutputs.Add(utxoOne.OutPoint, utxoOne);

            this.coinView
            .Setup(m => m.FetchCoins(It.IsAny <OutPoint[]>()))
            .Returns(res);

            // Setup stake validator to pass stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutput>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(false);

            // Setup stake validator to pass signature validation.
            this.stakeValidator
            .Setup(m => m.VerifySignature(It.IsAny <UnspentOutput>(), It.IsAny <Transaction>(), It.IsAny <int>(), It.IsAny <ScriptVerify>()))
            .Returns(true);

            // Setup stake validator to fail stake kernel hash validation.
            this.stakeChain.Setup(m => m.Get(It.IsAny <uint256>())).Returns(new BlockStake());
            this.stakeValidator
            .Setup(m => m.CheckStakeKernelHash(It.IsAny <PosRuleContext>(), It.IsAny <uint>(), It.IsAny <uint256>(), It.IsAny <UnspentOutput>(), It.IsAny <OutPoint>(), It.IsAny <uint>()))
            .Throws(new ConsensusErrorException(ConsensusErrors.StakeHashInvalidTarget));

            // When we run the validation rule, we should hit stake hash invalid target error.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().Throw <ConsensusErrorException>()
            .And.ConsensusError
            .Should().Be(ConsensusErrors.StakeHashInvalidTarget);
        }
        public void RunRule_ProvenHeadersActive_And_InvalidStakeKernelHash_CoinstakeVerifySignatureErrorIsThrown()
        {
            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.options.ProvenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock          posBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build();

            provenBlockHeader.HashPrevBlock  = prevProvenBlockHeader.GetHash();
            provenBlockHeader.Coinstake.Time = provenBlockHeader.Time;

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.options.ProvenHeadersActivationHeight + 2);

            // Setup coinstake transaction with a valid stake age.
            this.coinView
            .Setup(m => m.FetchCoinsAsync(It.IsAny <uint256[]>(), It.IsAny <CancellationToken>()))
            .ReturnsAsync(new FetchCoinsResponse(new[] { new UnspentOutputs((uint)this.options.ProvenHeadersActivationHeight + 10, new Transaction()) }, posBlock.GetHash()));

            // Setup stake validator to pass stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutputs>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(true);

            // Setup stake validator to pass signature validation.
            this.stakeValidator
            .Setup(m => m.VerifySignature(It.IsAny <UnspentOutputs>(), It.IsAny <Transaction>(), It.IsAny <int>(), It.IsAny <ScriptVerify>()))
            .Returns(true);

            // Setup stake validator to fail stake kernel hash validation.
            this.stakeChain.Setup(m => m.Get(It.IsAny <uint256>())).Returns(new BlockStake());
            this.stakeValidator
            .Setup(m => m.CheckStakeKernelHash(It.IsAny <PosRuleContext>(), It.IsAny <uint>(), It.IsAny <uint256>(), It.IsAny <UnspentOutputs>(), It.IsAny <OutPoint>(), It.IsAny <uint>()))
            .Throws(new ConsensusErrorException(ConsensusErrors.StakeHashInvalidTarget));

            // When we run the validation rule, we should hit stake hash invalid target error.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().Throw <ConsensusErrorException>()
            .And.ConsensusError
            .Should().Be(ConsensusErrors.StakeHashInvalidTarget);
        }
Exemplo n.º 7
0
        public void RunRule_ProvenHeadersActive_And_InvalidStakeDepth_StakeDepthErrorIsThrown()
        {
            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock          posBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build();

            provenBlockHeader.PosBlockHeader.HashPrevBlock = prevProvenBlockHeader.GetHash();
            if (provenBlockHeader.Coinstake is IPosTransactionWithTime posTrx)
            {
                posTrx.Time = provenBlockHeader.Time;
            }

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 2);

            // Ensure that coinview returns a UTXO with valid outputs.
            var utxoOne = new UnspentOutput(prevPosBlock.Transactions[1].Inputs[0].PrevOut, new Coins((uint)previousChainedHeader.Height, new TxOut(), false, true));

            // Setup coinstake transaction with an invalid stake age.
            var res = new FetchCoinsResponse();

            res.UnspentOutputs.Add(utxoOne.OutPoint, utxoOne);

            this.coinView
            .Setup(m => m.FetchCoins(It.IsAny <OutPoint[]>()))
            .Returns(res);

            // Setup stake validator to fail stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutput>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(true);

            // When we run the validation rule, we should hit coinstake depth error.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().Throw <ConsensusErrorException>()
            .And.ConsensusError
            .Should().Be(ConsensusErrors.InvalidStakeDepth);
        }
        public void RunRule_ProvenHeadersActive_And_InvalidCoinstakeSignature_CoinstakeVerifySignatureErrorIsThrown()
        {
            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock          posBlock          = new PosBlockBuilder(this.network).Build();
            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build();

            provenBlockHeader.HashPrevBlock  = prevProvenBlockHeader.GetHash();
            provenBlockHeader.Coinstake.Time = provenBlockHeader.Time;

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 2);

            // Ensure that coinview returns UTXO with valid outputs.
            var utxoOneTransaction = new Transaction();

            utxoOneTransaction.AddOutput(new TxOut());
            var utxoOne = new UnspentOutputs((uint)this.provenHeadersActivationHeight + 10, utxoOneTransaction);

            // Setup coinstake transaction with a valid stake age.
            this.coinView
            .Setup(m => m.FetchCoinsAsync(It.IsAny <uint256[]>(), It.IsAny <CancellationToken>()))
            .ReturnsAsync(new FetchCoinsResponse(new[] { utxoOne }, posBlock.GetHash()));

            // Setup stake validator to fail signature validation.
            this.stakeValidator
            .Setup(m => m.VerifySignature(It.IsAny <UnspentOutputs>(), It.IsAny <Transaction>(), It.IsAny <int>(), It.IsAny <ScriptVerify>()))
            .Returns(false);

            // Setup stake validator to pass stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutputs>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(false);

            // When we run the validation rule, we should hit coinstake signature verification error.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().Throw <ConsensusErrorException>().And.ConsensusError.Should().Be(ConsensusErrors.CoinstakeVerifySignatureFailed);
        }
Exemplo n.º 9
0
        /// <summary>
        /// Builds a chain of proven headers.
        /// </summary>
        /// <param name="blockCount">The amount of blocks to chain.</param>
        /// <param name="startingHeader">Build the chain from this header, if not start from genesis.</param>
        /// <returns>Tip of a created chain of headers.</returns>
        public ChainedHeader BuildProvenHeaderChain(int blockCount, ChainedHeader startingHeader = null)
        {
            startingHeader = startingHeader ?? ChainedHeadersHelper.CreateGenesisChainedHeader(this.Network);

            for (int i = 1; i < blockCount; i++)
            {
                PosBlock          block  = this.CreatePosBlock();
                ProvenBlockHeader header = ((PosConsensusFactory)this.Network.Consensus.ConsensusFactory).CreateProvenBlockHeader(block);

                header.Nonce         = RandomUtils.GetUInt32();
                header.HashPrevBlock = startingHeader.HashBlock;
                header.Bits          = Target.Difficulty1;

                ChainedHeader prevHeader = startingHeader;
                startingHeader = new ChainedHeader(header, header.GetHash(), prevHeader.Height + 1);

                startingHeader.SetPrivatePropertyValue("Previous", prevHeader);
                prevHeader.Next.Add(startingHeader);
            }

            return(startingHeader);
        }
Exemplo n.º 10
0
        /// <returns>Tip of a created chain of headers.</returns>
        public ChainedHeader BuildChainWithProvenHeaders(int blockCount)
        {
            ChainedHeader currentHeader = ChainedHeadersHelper.CreateGenesisChainedHeader(this.Network);

            for (int i = 1; i < blockCount; i++)
            {
                PosBlock          block  = this.CreatePosBlockMock();
                ProvenBlockHeader header = ((PosConsensusFactory)this.Network.Consensus.ConsensusFactory).CreateProvenBlockHeader(block);

                header.Nonce         = RandomUtils.GetUInt32();
                header.HashPrevBlock = currentHeader.HashBlock;
                header.Bits          = Target.Difficulty1;

                ChainedHeader prevHeader = currentHeader;
                currentHeader = new ChainedHeader(header, header.GetHash(), i);

                currentHeader.SetPrivatePropertyValue("Previous", prevHeader);
                prevHeader.Next.Add(currentHeader);
            }

            return(currentHeader);
        }
Exemplo n.º 11
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        public (ChainedHeader chainedHeader, List <ProvenBlockHeader> provenBlockHeaders) BuildChainWithProvenHeaders(int blockCount, Network network, bool addNext = false)
        {
            Guard.Assert(blockCount > 0);

            var provenBlockHeaders = new List <ProvenBlockHeader>();

            ChainedHeader chainedHeader       = null;
            ChainedHeader previousChainHeader = null;

            for (int i = 0; i < blockCount; i++)
            {
                PosBlock          block  = CreatePosBlockMock();
                ProvenBlockHeader header = ((PosConsensusFactory)this.Network.Consensus.ConsensusFactory).CreateProvenBlockHeader(block);

                header.Nonce         = RandomUtils.GetUInt32();
                header.HashPrevBlock = i > 0 ? chainedHeader.HashBlock : null;
                header.Bits          = Target.Difficulty1;

                chainedHeader = new ChainedHeader(header, header.GetHash(), i);

                if (previousChainHeader != null)
                {
                    chainedHeader.SetPrivatePropertyValue("Previous", previousChainHeader);

                    if (addNext)
                    {
                        chainedHeader.Previous.Next.Add(chainedHeader);
                    }
                }

                previousChainHeader = chainedHeader;

                provenBlockHeaders.Add(header);
            }

            return(chainedHeader, provenBlockHeaders);
        }
Exemplo n.º 12
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        public void RunRule_ProvenHeadersActive_And_ValidProvenHeader_NoErrorsAreThrown()
        {
            // Setup private key.
            var mnemonic   = new Mnemonic(Wordlist.English, WordCount.Twelve);
            Key privateKey = mnemonic.DeriveExtKey().PrivateKey;

            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network, privateKey).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock posBlock = new PosBlockBuilder(this.network, privateKey).Build();

            posBlock.UpdateMerkleRoot();
            posBlock.Header.HashPrevBlock = prevProvenBlockHeader.GetHash();
            posBlock.Header.Bits          = 16777216;

            // Update signature.
            ECDSASignature signature = privateKey.Sign(posBlock.Header.GetHash());

            posBlock.BlockSignature = new BlockSignature {
                Signature = signature.ToDER()
            };

            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build(prevProvenBlockHeader);

            provenBlockHeader.PosBlockHeader.HashPrevBlock = prevProvenBlockHeader.GetHash();
            if (provenBlockHeader.Coinstake is IPosTransactionWithTime posTrx)
            {
                posTrx.Time = provenBlockHeader.Time;
            }

            // Set invalid coinstake script pub key
            provenBlockHeader.Coinstake.Outputs[1].ScriptPubKey = privateKey.PubKey.ScriptPubKey;

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 2);

            // Setup coinstake transaction with a valid stake age.

            uint unspentOutputsHeight = (uint)this.provenHeadersActivationHeight + 10;
            var  res            = new FetchCoinsResponse();
            var  unspentOutputs = new UnspentOutput(prevPosBlock.Transactions[1].Inputs[0].PrevOut,
                                                    new Coins(unspentOutputsHeight, new TxOut(new Money(100), privateKey.PubKey), false));

            res.UnspentOutputs.Add(unspentOutputs.OutPoint, unspentOutputs);

            this.coinView
            .Setup(m => m.FetchCoins(It.IsAny <OutPoint[]>()))
            .Returns(res);

            // Setup stake validator to pass stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutput>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(false);

            // Setup stake validator to pass signature validation.
            this.stakeValidator
            .Setup(m => m.VerifySignature(It.IsAny <UnspentOutput>(), It.IsAny <Transaction>(), It.IsAny <int>(), It.IsAny <ScriptVerify>()))
            .Returns(true);

            // Setup stake validator to pass stake kernel hash validation.
            this.stakeChain.Setup(m => m.Get(It.IsAny <uint256>())).Returns(new BlockStake());
            this.stakeValidator
            .Setup(m => m.CheckStakeKernelHash(It.IsAny <PosRuleContext>(), It.IsAny <uint>(), It.IsAny <uint256>(), It.IsAny <UnspentOutput>(), It.IsAny <OutPoint>(), It.IsAny <uint>())).Returns(true);

            // When we run the validation rule, we should not hit any errors.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().NotThrow();
        }
Exemplo n.º 13
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        public void RunRule_ProvenHeadersActive_And_InvalidCoinstakeKernelSignature_BadBlockSignatureErrorIsThrown()
        {
            // Setup private key.
            var mnemonic   = new Mnemonic(Wordlist.English, WordCount.Twelve);
            Key privateKey = mnemonic.DeriveExtKey().PrivateKey;

            // Setup previous chained header.
            PosBlock          prevPosBlock          = new PosBlockBuilder(this.network, privateKey).Build();
            ProvenBlockHeader prevProvenBlockHeader = new ProvenBlockHeaderBuilder(prevPosBlock, this.network).Build();
            var previousChainedHeader = new ChainedHeader(prevProvenBlockHeader, prevProvenBlockHeader.GetHash(), null);

            previousChainedHeader.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 1);

            // Setup proven header with valid coinstake.
            PosBlock posBlock = new PosBlockBuilder(this.network, privateKey).Build();

            posBlock.UpdateMerkleRoot();
            ProvenBlockHeader provenBlockHeader = new ProvenBlockHeaderBuilder(posBlock, this.network).Build(prevProvenBlockHeader);

            provenBlockHeader.PosBlockHeader.HashPrevBlock = prevProvenBlockHeader.GetHash();
            if (provenBlockHeader.Coinstake is IPosTransactionWithTime posTrx)
            {
                posTrx.Time = provenBlockHeader.Time;
            }

            // Set invalid coinstake script pub key.
            provenBlockHeader.Coinstake.Outputs[1].ScriptPubKey = new Script("03cdac179a3391d96cf4957fa0255e4aa8055a993e92df7146e740117885b184ea OP_CHECKSIG");

            // Setup chained header and move it to the height higher than proven header activation height.
            this.ruleContext.ValidationContext.ChainedHeaderToValidate = new ChainedHeader(provenBlockHeader, provenBlockHeader.GetHash(), previousChainedHeader);
            this.ruleContext.ValidationContext.ChainedHeaderToValidate.SetPrivatePropertyValue("Height", this.provenHeadersActivationHeight + 2);

            // Setup coinstake transaction with a valid stake age.
            uint unspentOutputsHeight = (uint)this.provenHeadersActivationHeight + 10;

            var res            = new FetchCoinsResponse();
            var unspentOutputs = new UnspentOutput(prevPosBlock.Transactions[1].Inputs[0].PrevOut,
                                                   new Coins(unspentOutputsHeight, new TxOut(new Money(100), privateKey.PubKey), false));

            res.UnspentOutputs.Add(unspentOutputs.OutPoint, unspentOutputs);

            this.coinView
            .Setup(m => m.FetchCoins(It.IsAny <OutPoint[]>()))
            .Returns(res);

            // Setup stake validator to pass signature validation.
            this.stakeValidator
            .Setup(m => m.VerifySignature(It.IsAny <UnspentOutput>(), It.IsAny <Transaction>(), It.IsAny <int>(), It.IsAny <ScriptVerify>()))
            .Returns(true);

            // Setup stake validator to pass stake kernel hash validation.
            this.stakeChain.Setup(m => m.Get(It.IsAny <uint256>())).Returns(new BlockStake());
            this.stakeValidator
            .Setup(m => m.CheckStakeKernelHash(It.IsAny <PosRuleContext>(), It.IsAny <uint>(), It.IsAny <uint256>(), It.IsAny <UnspentOutput>(), It.IsAny <OutPoint>(), It.IsAny <uint>())).Returns(true);

            // Setup stake validator to pass stake age check.
            this.stakeValidator
            .Setup(m => m.IsConfirmedInNPrevBlocks(It.IsAny <UnspentOutput>(), It.IsAny <ChainedHeader>(), It.IsAny <long>()))
            .Returns(false);

            // When we run the validation rule, we should hit bad merkle proof error.
            Action ruleValidation = () => this.consensusRules.RegisterRule <ProvenHeaderCoinstakeRule>().Run(this.ruleContext);

            ruleValidation.Should().Throw <ConsensusErrorException>()
            .And.ConsensusError
            .Should().Be(ConsensusErrors.BadBlockSignature);
        }