@pharosnames/address-encoder/dist/esm/coin/vsys.js

Encodes and decodes address formats for various cryptocurrencies with Pharos network support

import { equalBytes } from "@noble/curves/abstract/utils";
import { blake2b } from "@noble/hashes/blake2b";
import { keccak_256 } from "@noble/hashes/sha3";
import { base58UncheckedDecode, base58UncheckedEncode, } from "../utils/base58.js";
const name = "vsys";
const coinType = 360;
const vsysChecksum = (source) => {
    if (source[0] !== 5 || source[1] !== 77 || source.length !== 26)
        return false;
    const checksum = source.slice(-4);
    const newChecksum = keccak_256(blake2b(source.slice(0, -4), { dkLen: 32 })).slice(0, 4);
    if (!equalBytes(checksum, newChecksum))
        return false;
    return true;
};
export const encodeVsysAddress = (source) => {
    if (!vsysChecksum(source))
        throw new Error("Unrecognised address format");
    return base58UncheckedEncode(source);
};
export const decodeVsysAddress = (source) => {
    const encoded = source.startsWith("address:") ? source.slice(8) : source;
    if (encoded.length > 36)
        throw new Error("Unrecognised address format");
    const decoded = base58UncheckedDecode(encoded);
    if (!vsysChecksum(decoded))
        throw new Error("Unrecognised address format");
    return decoded;
};
export const vsys = {
    name,
    coinType,
    encode: encodeVsysAddress,
    decode: decodeVsysAddress,
};
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