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Create messengerEthereum.js

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Added basic Ethereum Address generation functions which can be generated without Taproot functions. 

Just with existing libraries, and addition of keccak.js, Ethereum addresses of the contacts that messenger communicates with will be achieved. 

However as of now, messages cannot nbe sent to Ethereum addresses.
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tripathyr 2023-10-15 08:38:36 +05:30 committed by GitHub
parent c7bcedb6ff
commit 21d6c17669
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(function (EXPORTS) { //floEthereum v1.0.1a
/* FLO Ethereum Operators */
/* Make sure you added Taproot, Keccak, FLO and BTC Libraries before */
'use strict';
const floEthereum = EXPORTS;
//This needs y point to be even always. If y point is odd, it wil be converted to even
const ethAddressFromPrivateKey = floEthereum.ethAddressFromPrivateKey = function(privateKey){
var t1,t1_x,t1_y,t1_x_BigInt,t1_y_BigInt,t2,t3,t4;
var groupOrder = BigInt("0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F");
t1 = bitjs.newPubkey(privateKey);
t1_x = t1.slice(2, 66); t1_y = t1.slice(-64);
t1_x_BigInt = BigInt("0x"+t1_x);t1_y_BigInt = BigInt("0x"+t1_y);
if (t1_y_BigInt % 2n !== 0n) { t1_y_BigInt = (groupOrder-t1_y_BigInt)%groupOrder; t1_y=t1_y_BigInt.toString(16)};
t2 = t1_x.toString(16) + t1_y.toString(16);
t3 = keccak.keccak_256(Crypto.util.hexToBytes(t2));
t4 = keccak.extractLast20Bytes(t3);
return "0x" + t4;
}
const ethAddressFromCompressedPublicKey = floEthereum.ethAddressFromCompressedPublicKey = function(compressedPublicKey){
var t1,t2,t3,t4;
t1 = coinjs.compressedToUncompressed(compressedPublicKey);
t2 = t1.slice(2);
t3 = keccak.keccak_256(Crypto.util.hexToBytes(t2));
t4 = keccak.extractLast20Bytes(t3);
return "0x" + t4;
}
const ethAddressFromUncompressedPublicKey = floEthereum.ethAddressFromUncompressedPublicKey = function(unCompressedPublicKey){
var t1,t2,t3,t4;
t1 = unCompressedPublicKey;
t2 = t1.slice(2);
t3 = keccak.keccak_256(Crypto.util.hexToBytes(t2));
t4 = keccak.extractLast20Bytes(t3);
return "0x" + t4;
}
})('object' === typeof module ? module.exports : window.floEthereum = {});