{ "contractName": "ModexpPrecompile", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.7.4+commit.3f05b770\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"/home/arachnid/Dropbox/projects/enssec/contracts/algorithms/ModexpPrecompile.sol\":\"ModexpPrecompile\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"/home/arachnid/Dropbox/projects/enssec/contracts/algorithms/ModexpPrecompile.sol\":{\"keccak256\":\"0x439209168162b319cbc197a58f2aee70dceb9e559acc612d272e496660c81683\",\"urls\":[\"bzz-raw://7b6cfb421acd55264fe00e6849e426fd8b8cf831861d9b8a3f519b689a7f8783\",\"dweb:/ipfs/QmP1txLavrJRggVRJ8TnWDVQMdb2ugi1PTFmf1PNNMDHQY\"]},\"@ensdomains/buffer/contracts/Buffer.sol\":{\"keccak256\":\"0x3dc6d79ec7994ddf8ce80248f2d53635254b8e5b19617ee257ae5857e9da1bd1\",\"urls\":[\"bzz-raw://f72312eafad4c9d6f9917a5f4bd0555011a26bfbf86313f9d8de374097e7b61c\",\"dweb:/ipfs/QmcCBXetT1ie4GtA1N6HckQeucq7er4jc1yUbypYvMBjZv\"]}},\"version\":1}", "bytecode": "0x60566023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220fcd9ea3e6561eaea08df750bfa12fe387151147aaad355d903b0dfd82181d76164736f6c63430007040033", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220fcd9ea3e6561eaea08df750bfa12fe387151147aaad355d903b0dfd82181d76164736f6c63430007040033", "immutableReferences": {}, "generatedSources": [], "deployedGeneratedSources": [], "sourceMap": "76:859:9:-:0;;;;;;;;;;;;;;;;;;;;;;;;;", "deployedSourceMap": "76:859:9:-:0;;;;;;;;", "source": "pragma solidity ^0.7.4;\n\nimport \"@ensdomains/buffer/contracts/Buffer.sol\";\n\nlibrary ModexpPrecompile {\n using Buffer for *;\n\n /**\n * @dev Computes (base ^ exponent) % modulus over big numbers.\n */\n function modexp(bytes memory base, bytes memory exponent, bytes memory modulus) internal view returns (bool success, bytes memory output) {\n uint size = (32 * 3) + base.length + exponent.length + modulus.length;\n\n Buffer.buffer memory input;\n input.init(size);\n\n input.appendBytes32(bytes32(base.length));\n input.appendBytes32(bytes32(exponent.length));\n input.appendBytes32(bytes32(modulus.length));\n input.append(base);\n input.append(exponent);\n input.append(modulus);\n\n output = new bytes(modulus.length);\n\n assembly {\n success := staticcall(gas(), 5, add(mload(input), 32), size, add(output, 32), mload(modulus))\n }\n }\n}\n", "sourcePath": "/home/arachnid/Dropbox/projects/enssec/contracts/algorithms/ModexpPrecompile.sol", "ast": { "absolutePath": "/home/arachnid/Dropbox/projects/enssec/contracts/algorithms/ModexpPrecompile.sol", "exportedSymbols": { "Buffer": [ 6432 ], "ModexpPrecompile": [ 5348 ] }, "id": 5349, "nodeType": "SourceUnit", "nodes": [ { "id": 5245, "literals": [ "solidity", "^", "0.7", ".4" ], "nodeType": "PragmaDirective", "src": "0:23:9" }, { "absolutePath": 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