45 lines
1.7 KiB
JavaScript
45 lines
1.7 KiB
JavaScript
(function (EXPORTS) { //floEthereum v1.0.1a
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/* FLO Ethereum Operators */
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/* Make sure you added Taproot, Keccak, FLO and BTC Libraries before */
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'use strict';
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const floEthereum = EXPORTS;
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// onlyEvenY is usually false. It is needed to be true only when taproot private keys are input
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const ethAddressFromPrivateKey = floEthereum.ethAddressFromPrivateKey = function(privateKey, onlyEvenY = false){
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var t1,t1_x,t1_y,t1_y_BigInt,t2,t3,t4;
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var groupOrder = BigInt("0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F");
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t1 = bitjs.newPubkey(privateKey);
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t1_x = t1.slice(2, 66); t1_y = t1.slice(-64);
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if (onlyEvenY) {
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t1_y_BigInt = BigInt("0x"+t1_y);
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if (t1_y_BigInt % 2n !== 0n) { t1_y_BigInt = (groupOrder-t1_y_BigInt)%groupOrder; t1_y=t1_y_BigInt.toString(16)};
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}
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t2 = t1_x.toString(16) + t1_y.toString(16);
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t3 = keccak.keccak_256(Crypto.util.hexToBytes(t2));
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t4 = keccak.extractLast20Bytes(t3);
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return "0x" + t4;
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}
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const ethAddressFromCompressedPublicKey = floEthereum.ethAddressFromCompressedPublicKey = function(compressedPublicKey){
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var t1,t2,t3,t4;
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t1 = coinjs.compressedToUncompressed(compressedPublicKey);
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t2 = t1.slice(2);
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t3 = keccak.keccak_256(Crypto.util.hexToBytes(t2));
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t4 = keccak.extractLast20Bytes(t3);
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return "0x" + t4;
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}
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const ethAddressFromUncompressedPublicKey = floEthereum.ethAddressFromUncompressedPublicKey = function(unCompressedPublicKey){
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var t1,t2,t3,t4;
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t1 = unCompressedPublicKey;
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t2 = t1.slice(2);
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t3 = keccak.keccak_256(Crypto.util.hexToBytes(t2));
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t4 = keccak.extractLast20Bytes(t3);
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return "0x" + t4;
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}
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})('object' === typeof module ? module.exports : window.floEthereum = {});
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