{ "contractName": "SHA1", "abi": [ { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "bytes32", "name": "x", "type": "bytes32" } ], "name": "Debug", "type": "event" } ], "metadata": "{\"compiler\":{\"version\":\"0.7.4+commit.3f05b770\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"bytes32\",\"name\":\"x\",\"type\":\"bytes32\"}],\"name\":\"Debug\",\"type\":\"event\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"@ensdomains/solsha1/contracts/SHA1.sol\":\"SHA1\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"@ensdomains/solsha1/contracts/SHA1.sol\":{\"keccak256\":\"0xf400ebc75f77539e256b05773b840a1908b7c79ac39863ea8e80a3408c90a30a\",\"urls\":[\"bzz-raw://7b2ff0c33b4215ce9eb2343ae83b8ed15a2d8b76c0d91c864ed691b15ad5a4b9\",\"dweb:/ipfs/Qme6LYwQDT1zcKzNjaFZssUKrhMNZoT1qPn4sw5ZckGp7c\"]}},\"version\":1}", "bytecode": 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padding\n let totallen := add(and(add(len, 1), 0xFFFFFFFFFFFFFFC0), 64)\n switch lt(sub(totallen, len), 9)\n case 1 { totallen := add(totallen, 64) }\n\n let h := 0x6745230100EFCDAB890098BADCFE001032547600C3D2E1F0\n\n function readword(ptr, off, count) -> result {\n result := 0\n if lt(off, count) {\n result := mload(add(ptr, off))\n count := sub(count, off)\n if lt(count, 32) {\n let mask := not(sub(exp(256, sub(32, count)), 1))\n result := and(result, mask)\n }\n }\n }\n\n for { let i := 0 } lt(i, totallen) { i := add(i, 64) } {\n mstore(scratch, readword(data, i, len))\n mstore(add(scratch, 32), readword(data, add(i, 32), len))\n\n // If we loaded the last byte, store the terminator byte\n switch lt(sub(len, i), 64)\n case 1 { mstore8(add(scratch, sub(len, i)), 0x80) }\n\n // If this is the last block, store the length\n switch eq(i, sub(totallen, 64))\n case 1 { mstore(add(scratch, 32), or(mload(add(scratch, 32)), mul(len, 8))) }\n\n // Expand the 16 32-bit words into 80\n for { let j := 64 } lt(j, 128) { j := add(j, 12) } {\n let temp := xor(xor(mload(add(scratch, sub(j, 12))), mload(add(scratch, sub(j, 32)))), xor(mload(add(scratch, sub(j, 56))), mload(add(scratch, sub(j, 64)))))\n temp := or(and(mul(temp, 2), 0xFFFFFFFEFFFFFFFEFFFFFFFEFFFFFFFEFFFFFFFEFFFFFFFEFFFFFFFEFFFFFFFE), and(div(temp, 0x80000000), 0x0000000100000001000000010000000100000001000000010000000100000001))\n mstore(add(scratch, j), temp)\n }\n for { let j := 128 } lt(j, 320) { j := add(j, 24) } {\n let temp := xor(xor(mload(add(scratch, sub(j, 24))), mload(add(scratch, sub(j, 64)))), xor(mload(add(scratch, sub(j, 112))), mload(add(scratch, sub(j, 128)))))\n temp := or(and(mul(temp, 4), 0xFFFFFFFCFFFFFFFCFFFFFFFCFFFFFFFCFFFFFFFCFFFFFFFCFFFFFFFCFFFFFFFC), and(div(temp, 0x40000000), 0x0000000300000003000000030000000300000003000000030000000300000003))\n mstore(add(scratch, j), temp)\n }\n\n let x := h\n let f := 0\n let k := 0\n for { let j := 0 } lt(j, 80) { j := add(j, 1) } {\n switch div(j, 20)\n case 0 {\n // f = d xor (b and (c xor d))\n f := xor(div(x, 0x100000000000000000000), div(x, 0x10000000000))\n f := and(div(x, 0x1000000000000000000000000000000), f)\n f := xor(div(x, 0x10000000000), f)\n k := 0x5A827999\n }\n case 1{\n // f = b xor c xor d\n f := xor(div(x, 0x1000000000000000000000000000000), div(x, 0x100000000000000000000))\n f := xor(div(x, 0x10000000000), f)\n k := 0x6ED9EBA1\n }\n case 2 {\n // f = (b and c) or (d and (b or c))\n f := or(div(x, 0x1000000000000000000000000000000), div(x, 0x100000000000000000000))\n f := and(div(x, 0x10000000000), f)\n f := or(and(div(x, 0x1000000000000000000000000000000), div(x, 0x100000000000000000000)), f)\n k := 0x8F1BBCDC\n }\n case 3 {\n // f = b xor c xor d\n f := xor(div(x, 0x1000000000000000000000000000000), div(x, 0x100000000000000000000))\n f := xor(div(x, 0x10000000000), f)\n k := 0xCA62C1D6\n }\n // temp = (a leftrotate 5) + f + e + k + w[i]\n let temp := and(div(x, 0x80000000000000000000000000000000000000000000000), 0x1F)\n temp := or(and(div(x, 0x800000000000000000000000000000000000000), 0xFFFFFFE0), temp)\n temp := add(f, temp)\n temp := add(and(x, 0xFFFFFFFF), temp)\n temp := add(k, temp)\n temp := add(div(mload(add(scratch, mul(j, 4))), 0x100000000000000000000000000000000000000000000000000000000), temp)\n x := or(div(x, 0x10000000000), mul(temp, 0x10000000000000000000000000000000000000000))\n x := or(and(x, 0xFFFFFFFF00FFFFFFFF000000000000FFFFFFFF00FFFFFFFF), mul(or(and(div(x, 0x4000000000000), 0xC0000000), and(div(x, 0x400000000000000000000), 0x3FFFFFFF)), 0x100000000000000000000))\n }\n\n h := and(add(h, x), 0xFFFFFFFF00FFFFFFFF00FFFFFFFF00FFFFFFFF00FFFFFFFF)\n }\n ret := mul(or(or(or(or(and(div(h, 0x100000000), 0xFFFFFFFF00000000000000000000000000000000), and(div(h, 0x1000000), 0xFFFFFFFF000000000000000000000000)), and(div(h, 0x10000), 0xFFFFFFFF0000000000000000)), and(div(h, 0x100), 0xFFFFFFFF00000000)), and(h, 0xFFFFFFFF)), 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