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Eip-2537 - BLS12-381 precompiles (#964)
Implement BLS12-381 precompiles via the MatterLabs library. Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>
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82 changes: 82 additions & 0 deletions
82
...a/org/hyperledger/besu/ethereum/mainnet/precompiles/AbstractBLS12PrecompiledContract.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| /* | ||
| * Copyright ConsenSys AG. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | ||
| * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| */ | ||
| package org.hyperledger.besu.ethereum.mainnet.precompiles; | ||
|
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| import static java.nio.charset.StandardCharsets.UTF_8; | ||
|
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| import org.hyperledger.besu.ethereum.mainnet.PrecompiledContract; | ||
| import org.hyperledger.besu.ethereum.vm.MessageFrame; | ||
| import org.hyperledger.besu.nativelib.bls12_381.LibEthPairings; | ||
|
|
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| import com.sun.jna.ptr.IntByReference; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.apache.tuweni.bytes.Bytes; | ||
|
|
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| public abstract class AbstractBLS12PrecompiledContract implements PrecompiledContract { | ||
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| private static final Logger LOG = LogManager.getLogger(); | ||
|
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| static final int[] DISCOUNT_TABLE = | ||
| new int[] { | ||
| -1, 1_200, 888, 764, 641, 594, 547, 500, 453, 438, 423, 408, 394, 379, 364, 349, | ||
| 334, 330, 326, 322, 318, 314, 310, 306, 302, 298, 294, 289, 285, 281, 277, 273, | ||
| 269, 268, 266, 265, 263, 262, 260, 259, 257, 256, 254, 253, 251, 250, 248, 247, | ||
| 245, 244, 242, 241, 239, 238, 236, 235, 233, 232, 231, 229, 228, 226, 225, 223, | ||
| 222, 221, 220, 219, 219, 218, 217, 216, 216, 215, 214, 213, 213, 212, 211, 211, | ||
| 210, 209, 208, 208, 207, 206, 205, 205, 204, 203, 202, 202, 201, 200, 199, 199, | ||
| 198, 197, 196, 196, 195, 194, 193, 193, 192, 191, 191, 190, 189, 188, 188, 187, | ||
| 186, 185, 185, 184, 183, 182, 182, 181, 180, 179, 179, 178, 177, 176, 176, 175, | ||
| 174 | ||
| }; | ||
|
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| private final String name; | ||
| private final byte operationId; | ||
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| AbstractBLS12PrecompiledContract(final String name, final byte operationId) { | ||
| this.name = name; | ||
| this.operationId = operationId; | ||
| } | ||
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| @Override | ||
| public String getName() { | ||
| return name; | ||
| } | ||
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| @Override | ||
| public Bytes compute(final Bytes input, final MessageFrame messageFrame) { | ||
| final byte[] result = new byte[LibEthPairings.EIP2537_PREALLOCATE_FOR_RESULT_BYTES]; | ||
| final byte[] error = new byte[LibEthPairings.EIP2537_PREALLOCATE_FOR_ERROR_BYTES]; | ||
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| final IntByReference o_len = | ||
| new IntByReference(LibEthPairings.EIP2537_PREALLOCATE_FOR_RESULT_BYTES); | ||
| final IntByReference err_len = | ||
| new IntByReference(LibEthPairings.EIP2537_PREALLOCATE_FOR_ERROR_BYTES); | ||
| final int errorNo = | ||
| LibEthPairings.eip2537_perform_operation( | ||
| operationId, input.toArrayUnsafe(), input.size(), result, o_len, error, err_len); | ||
| if (errorNo == 0) { | ||
| return Bytes.wrap(result, 0, o_len.getValue()); | ||
| } else { | ||
| messageFrame.setRevertReason(Bytes.wrap(error, 0, err_len.getValue())); | ||
| LOG.trace( | ||
| "Error executing precompiled contract {}: '{}'", | ||
| name, | ||
| new String(error, 0, err_len.getValue(), UTF_8)); | ||
| return null; | ||
| } | ||
| } | ||
| } |
33 changes: 33 additions & 0 deletions
33
...java/org/hyperledger/besu/ethereum/mainnet/precompiles/BLS12G1AddPrecompiledContract.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * Copyright ConsenSys AG. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | ||
| * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| */ | ||
| package org.hyperledger.besu.ethereum.mainnet.precompiles; | ||
|
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| import org.hyperledger.besu.ethereum.core.Gas; | ||
| import org.hyperledger.besu.nativelib.bls12_381.LibEthPairings; | ||
|
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| import org.apache.tuweni.bytes.Bytes; | ||
|
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| public class BLS12G1AddPrecompiledContract extends AbstractBLS12PrecompiledContract { | ||
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| public BLS12G1AddPrecompiledContract() { | ||
| super("BLS12_G1ADD", LibEthPairings.BLS12_G1ADD_OPERATION_RAW_VALUE); | ||
| } | ||
|
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| @Override | ||
| public Gas gasRequirement(final Bytes input) { | ||
| return Gas.of(600); | ||
| } | ||
| } |
33 changes: 33 additions & 0 deletions
33
...java/org/hyperledger/besu/ethereum/mainnet/precompiles/BLS12G1MulPrecompiledContract.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * Copyright ConsenSys AG. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | ||
| * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| */ | ||
| package org.hyperledger.besu.ethereum.mainnet.precompiles; | ||
|
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| import org.hyperledger.besu.ethereum.core.Gas; | ||
| import org.hyperledger.besu.nativelib.bls12_381.LibEthPairings; | ||
|
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| import org.apache.tuweni.bytes.Bytes; | ||
|
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| public class BLS12G1MulPrecompiledContract extends AbstractBLS12PrecompiledContract { | ||
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| public BLS12G1MulPrecompiledContract() { | ||
| super("BLS12_G1MUL", LibEthPairings.BLS12_G1MUL_OPERATION_RAW_VALUE); | ||
| } | ||
|
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| @Override | ||
| public Gas gasRequirement(final Bytes input) { | ||
| return Gas.of(12_000); | ||
| } | ||
| } |
37 changes: 37 additions & 0 deletions
37
...org/hyperledger/besu/ethereum/mainnet/precompiles/BLS12G1MultiExpPrecompiledContract.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /* | ||
| * Copyright ConsenSys AG. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | ||
| * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| */ | ||
| package org.hyperledger.besu.ethereum.mainnet.precompiles; | ||
|
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| import org.hyperledger.besu.ethereum.core.Gas; | ||
| import org.hyperledger.besu.nativelib.bls12_381.LibEthPairings; | ||
|
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| import org.apache.tuweni.bytes.Bytes; | ||
|
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| public class BLS12G1MultiExpPrecompiledContract extends AbstractBLS12PrecompiledContract { | ||
|
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| public BLS12G1MultiExpPrecompiledContract() { | ||
| super("BLS12_G1MULTIEXP", LibEthPairings.BLS12_G1MULTIEXP_OPERATION_RAW_VALUE); | ||
| } | ||
|
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| @Override | ||
| public Gas gasRequirement(final Bytes input) { | ||
| final int k = input.size() / 160; | ||
| // `k * multiplication_cost * discount / multiplier` where `multiplier = 1000` | ||
| // multiplication_cost and multiplier are folded into one constant as a long and placed first to | ||
| // prevent int32 overflow | ||
| return Gas.of(12L * k * DISCOUNT_TABLE[k]); | ||
| } | ||
| } |
33 changes: 33 additions & 0 deletions
33
...java/org/hyperledger/besu/ethereum/mainnet/precompiles/BLS12G2AddPrecompiledContract.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * Copyright ConsenSys AG. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | ||
| * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| */ | ||
| package org.hyperledger.besu.ethereum.mainnet.precompiles; | ||
|
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| import org.hyperledger.besu.ethereum.core.Gas; | ||
| import org.hyperledger.besu.nativelib.bls12_381.LibEthPairings; | ||
|
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| import org.apache.tuweni.bytes.Bytes; | ||
|
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| public class BLS12G2AddPrecompiledContract extends AbstractBLS12PrecompiledContract { | ||
|
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| public BLS12G2AddPrecompiledContract() { | ||
| super("BLS12_G2ADD", LibEthPairings.BLS12_G2ADD_OPERATION_RAW_VALUE); | ||
| } | ||
|
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| @Override | ||
| public Gas gasRequirement(final Bytes input) { | ||
| return Gas.of(4_500); | ||
| } | ||
| } |
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