@okxweb3/coin-stellar/dist/lib/signing.js

@ok/coin-stellar is a Stellar SDK for building Web3 wallets and applications. It supports Stellar and PI blockchains, enabling private key management, address generation, transaction signing, trustline creation, and asset transfers

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.generate = exports.verify = exports.sign = exports.FastSigning = void 0;
const actualMethods = {};
exports.FastSigning = checkFastSigning();
function sign(data, secretKey) {
    return actualMethods.sign(data, secretKey);
}
exports.sign = sign;
function verify(data, signature, publicKey) {
    return actualMethods.verify(data, signature, publicKey);
}
exports.verify = verify;
function generate(secretKey) {
    return actualMethods.generate(secretKey);
}
exports.generate = generate;
function checkFastSigning() {
    return typeof window === 'undefined'
        ? checkFastSigningNode()
        : checkFastSigningBrowser();
}
function checkFastSigningNode() {
    let sodium;
    try {
        sodium = require('sodium-native');
    }
    catch (err) {
        return checkFastSigningBrowser();
    }
    if (!Object.keys(sodium).length) {
        return checkFastSigningBrowser();
    }
    actualMethods.generate = (secretKey) => {
        const pk = Buffer.alloc(sodium.crypto_sign_PUBLICKEYBYTES);
        const sk = Buffer.alloc(sodium.crypto_sign_SECRETKEYBYTES);
        sodium.crypto_sign_seed_keypair(pk, sk, secretKey);
        return pk;
    };
    actualMethods.sign = (data, secretKey) => {
        data = Buffer.from(data);
        const signature = Buffer.alloc(sodium.crypto_sign_BYTES);
        sodium.crypto_sign_detached(signature, data, secretKey);
        return signature;
    };
    actualMethods.verify = (data, signature, publicKey) => {
        data = Buffer.from(data);
        try {
            return sodium.crypto_sign_verify_detached(signature, data, publicKey);
        }
        catch (e) {
            return false;
        }
    };
    return true;
}
function checkFastSigningBrowser() {
    const nacl = require('tweetnacl');
    actualMethods.generate = (secretKey) => {
        const secretKeyUint8 = new Uint8Array(secretKey);
        const naclKeys = nacl.sign.keyPair.fromSeed(secretKeyUint8);
        return Buffer.from(naclKeys.publicKey);
    };
    actualMethods.sign = (data, secretKey) => {
        data = Buffer.from(data);
        data = new Uint8Array(data.toJSON().data);
        secretKey = new Uint8Array(secretKey.toJSON().data);
        const signature = nacl.sign.detached(data, secretKey);
        return Buffer.from(signature);
    };
    actualMethods.verify = (data, signature, publicKey) => {
        data = Buffer.from(data);
        data = new Uint8Array(data.toJSON().data);
        signature = new Uint8Array(signature.toJSON().data);
        publicKey = new Uint8Array(publicKey.toJSON().data);
        return nacl.sign.detached.verify(data, signature, publicKey);
    };
    return false;
}
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