@pharosnames/address-encoder/dist/esm/utils/dot.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 { concatBytes } from "@noble/hashes/utils";
import { base58UncheckedDecode, base58UncheckedEncode } from "./base58.js";
const prefixStringBytes = new Uint8Array([
    0x53, 0x53, 0x35, 0x38, 0x50, 0x52, 0x45,
]);
const dotChecksum = (sourceWithTypePrefix) => blake2b(concatBytes(prefixStringBytes, sourceWithTypePrefix)).slice(0, 2);
export const createDotAddressEncoder = (type) => (source) => {
    const typePrefix = new Uint8Array([type]);
    const sourceWithTypePrefix = concatBytes(typePrefix, source);
    const checksum = dotChecksum(sourceWithTypePrefix);
    return base58UncheckedEncode(concatBytes(sourceWithTypePrefix, checksum));
};
export const createDotAddressDecoder = (type) => (source) => {
    const decoded = base58UncheckedDecode(source);
    if (decoded[0] !== type)
        throw new Error("Unrecognized address format");
    const checksum = decoded.slice(33, 35);
    const newChecksum = dotChecksum(decoded.slice(0, 33));
    if (!equalBytes(checksum, newChecksum))
        throw new Error("Unrecognized address format");
    return decoded.slice(1, 33);
};
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