multicoin-address-validator-ts/lib/siacoin_validator.js

Multicoin address validator for Bitcoin and other Altcoins. TS version

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.verifyChecksum = exports.isValidAddress = void 0;
var cryptoUtils = require('./crypto/utils');
function hexToBytes(hex) {
    var bytes = [];
    for (var c = 0; c < hex.length; c += 2) {
        // @ts-ignore
        bytes.push(parseInt(hex.substr(c, 2), 16));
    }
    return bytes;
}
function isValidAddress(address) {
    if (address.length !== 76) {
        // Check if it has the basic requirements of an address
        return false;
    }
    // Otherwise check each case
    return verifyChecksum(address);
}
exports.isValidAddress = isValidAddress;
function verifyChecksum(address) {
    var checksumBytes = address.slice(0, 32 * 2);
    var check = address.slice(32 * 2, 38 * 2);
    var blakeHash = cryptoUtils.blake2b(checksumBytes, 32).slice(0, 6 * 2);
    return blakeHash === check;
}
exports.verifyChecksum = verifyChecksum;