@bithomp/xrpl-api/lib/validator.js

A Bithomp JavaScript/TypeScript library for interacting with the XRP Ledger

"use strict";
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    return (mod && mod.__esModule) ? mod : { "default": mod };
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Object.defineProperty(exports, "__esModule", { value: true });
exports.classicAddressFromValidatorPK = classicAddressFromValidatorPK;
exports.generateSecrets = generateSecrets;
exports.sign = sign;
exports.verify = verify;
exports.verify2 = verify2;
const assert = __importStar(require("assert"));
const ripple_address_codec_1 = require("ripple-address-codec");
const Crypto = __importStar(require("crypto"));
const elliptic_1 = __importDefault(require("elliptic"));
const secp256k1 = new elliptic_1.default.ec("secp256k1");
const ed25519 = new elliptic_1.default.eddsa("ed25519");
const rippleKeypairs = __importStar(require("ripple-keypairs"));
const utils_1 = require("./parse/utils");
const DER_PRIVATE_KEY_PREFIX = Buffer.from("302E020100300506032B657004220420", "hex");
const DER_PUBLIC_KEY_PREFIX = Buffer.from("302A300506032B6570032100", "hex");
const VALIDATOR_HEX_PREFIX_ED25519 = "ED";
const VALIDATOR_NODE_PUBLIC_KEY_PREFIX = "n";
function classicAddressFromValidatorPK(pk) {
    let pubkey = pk;
    if (typeof pk === "string") {
        pubkey = Buffer.from((0, ripple_address_codec_1.decodeNodePublic)(pk).buffer);
    }
    assert.ok(pubkey.length === 33);
    assert.ok(Crypto.getHashes().includes("sha256"));
    assert.ok(Crypto.getHashes().includes("ripemd160"));
    const pubkeyInnerHash = Crypto.createHash("sha256").update(pubkey);
    const pubkeyOuterHash = Crypto.createHash("ripemd160");
    pubkeyOuterHash.update(pubkeyInnerHash.digest());
    const accountID = pubkeyOuterHash.digest();
    return (0, ripple_address_codec_1.encodeAccountID)(accountID);
}
function generateSecrets() {
    const keypair = Crypto.generateKeyPairSync("ed25519", {
        privateKeyEncoding: { format: "der", type: "pkcs8" },
        publicKeyEncoding: { format: "der", type: "spki" },
    });
    const { privateKey, publicKey } = keypair;
    const PublicKey = VALIDATOR_HEX_PREFIX_ED25519 +
        publicKey.slice(DER_PUBLIC_KEY_PREFIX.length, publicKey.length).toString("hex").toUpperCase();
    const secretKey = ripple_address_codec_1.codec.encode(privateKey.slice(DER_PRIVATE_KEY_PREFIX.length, privateKey.length), {
        versions: [0x20],
        expectedLength: 32,
    });
    return {
        key_type: "ed25519",
        secret_key: secretKey,
        public_key: (0, ripple_address_codec_1.encodeNodePublic)(Buffer.from(PublicKey, "hex")),
        PublicKey,
    };
}
function sign(message, secret) {
    if (typeof message === "string") {
        message = Buffer.from(message, "utf8");
    }
    try {
        const decoded = ripple_address_codec_1.codec.decode(secret, { versions: [0x20] });
        secret = VALIDATOR_HEX_PREFIX_ED25519 + (0, utils_1.bytesToHex)(decoded.bytes.buffer);
    }
    catch (_err) {
    }
    return rippleKeypairs.sign(message.toString("hex"), secret).toUpperCase();
}
function verify(message, signature, publicKey) {
    if (typeof message === "string") {
        message = Buffer.from(message, "utf8");
    }
    if (publicKey.slice(0, 1) === VALIDATOR_NODE_PUBLIC_KEY_PREFIX) {
        const publicKeyBuffer = (0, ripple_address_codec_1.decodeNodePublic)(publicKey);
        publicKey = (0, utils_1.bytesToHex)(publicKeyBuffer.buffer);
    }
    try {
        return rippleKeypairs.verify(message.toString("hex"), signature, publicKey);
    }
    catch (_err) {
    }
    return false;
}
function verify2(message, signature, publicKey) {
    if (publicKey.slice(0, 1) === VALIDATOR_NODE_PUBLIC_KEY_PREFIX) {
        const publicKeyBuffer = (0, ripple_address_codec_1.decodeNodePublic)(publicKey);
        publicKey = (0, utils_1.bytesToHex)(publicKeyBuffer.buffer);
    }
    if (publicKey.slice(0, 2) === VALIDATOR_HEX_PREFIX_ED25519) {
        const verifyKey = ed25519.keyFromPublic(publicKey.slice(2), "hex");
        if (verifyKey.verify(message.toString("hex"), signature)) {
            return true;
        }
    }
    else {
        const computedHash = Crypto.createHash("sha512").update(message).digest().toString("hex").slice(0, 64);
        const verifyKey = secp256k1.keyFromPublic(publicKey, "hex");
        if (verifyKey.verify(computedHash, signature)) {
            return true;
        }
    }
    return false;
}