@hdwallet/core
Version:
A complete Hierarchical Deterministic (HD) Wallet generator for 200+ cryptocurrencies, built with TypeScript.
49 lines • 2.29 kB
JavaScript
;
// SPDX-License-Identifier: MIT
Object.defineProperty(exports, "__esModule", { value: true });
exports.AlgorandAddress = void 0;
const cryptocurrencies_1 = require("../cryptocurrencies");
const base32_1 = require("../libs/base32");
const crypto_1 = require("../crypto");
const eccs_1 = require("../eccs");
const utils_1 = require("../utils");
const exceptions_1 = require("../exceptions");
const address_1 = require("./address");
class AlgorandAddress extends address_1.Address {
static checksumLength = cryptocurrencies_1.Algorand.PARAMS.CHECKSUM_LENGTH;
static getName() {
return 'Algorand';
}
static computeChecksum(publicKey) {
return (0, crypto_1.sha512_256)(publicKey).subarray(-4);
}
static encode(publicKey) {
const pk = (0, eccs_1.validateAndGetPublicKey)(publicKey, eccs_1.SLIP10Ed25519PublicKey);
const raw = pk.getRawCompressed().subarray(1);
const checksum = this.computeChecksum(raw);
return (0, base32_1.encodeNoPadding)((0, utils_1.bytesToString)((0, utils_1.concatBytes)(raw, checksum)));
}
static decode(address) {
const decoded = (0, utils_1.getBytes)((0, base32_1.decode)(address));
const expectedLength = eccs_1.SLIP10Ed25519PublicKey.getCompressedLength() - 1 + this.checksumLength;
if (decoded.length !== expectedLength) {
throw new exceptions_1.AddressError('Invalid decoded length', {
expected: expectedLength, got: decoded.length
});
}
const pubkey = decoded.subarray(0, decoded.length - this.checksumLength);
const checksum = decoded.subarray(-this.checksumLength);
const gotChecksum = this.computeChecksum(pubkey);
if (!(0, utils_1.equalBytes)(checksum, gotChecksum)) {
throw new exceptions_1.AddressError('Invalid checksum', {
expected: (0, utils_1.bytesToString)(checksum), got: (0, utils_1.bytesToString)(gotChecksum)
});
}
if (!eccs_1.SLIP10Ed25519PublicKey.isValidBytes(pubkey)) {
throw new exceptions_1.AddressError('Invalid public key');
}
return (0, utils_1.bytesToString)(pubkey);
}
}
exports.AlgorandAddress = AlgorandAddress;
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