---
title: "@push.rocks/smartcrypto"
---
# @push.rocks/smartcrypto
easy crypto methods

## Install
To install `@push.rocks/smartcrypto`, open a terminal and run the following command:
```bash
npm install @push.rocks/smartcrypto
```
This will add `@push.rocks/smartcrypto` to your project's dependencies.

## Usage
This guide demonstrates how to use `@push.rocks/smartcrypto` effectively by covering its main functionalities. The module offers straightforward methods for handling cryptographic operations. We'll go through generating keys, encrypting and decrypting data, and converting keys to various formats.

### Setting up your project
Firstly, ensure you have a TypeScript project configured to use ES Modules. Initialize `@push.rocks/smartcrypto` in your project as shown:

```typescript
import { Smartcrypto } from '@push.rocks/smartcrypto';

const smartCrypto = new Smartcrypto();
```

### Generating a Key Pair
Generating a new RSA key pair is a common requirement. Let's see how `@push.rocks/smartcrypto` simplifies this process:

```typescript
(async () => {
  const keyPair = await smartCrypto.createKeyPair();
  console.log('Public Key:', keyPair.publicKey.toPemString());
  console.log('Private Key:', keyPair.privateKey.toPemString());
})();
```

This asynchronous function generates a new RSA key pair and logs the PEM-formatted public and private keys. This is particularly useful for creating keys for secure communication.

### Working with Public and Private Keys
You can manipulate public and private keys using their respective classes. For instance, converting a private key to a PEM string for storage or transmission is straightforward:

```typescript
import { PrivateKey } from '@push.rocks/smartcrypto';

// Assuming you already have a privateKey object:
const privateKeyPemString = privateKey.toPemString();
console.log(privateKeyPemString);
```

Similarly, you can create a `PrivateKey` object from a PEM string. This is useful when you retrieve a stored key and need to use it in your application:

```typescript
const privateKeyFromPem = PrivateKey.fromPemString(privateKeyPemString);
```

The same methods apply to public keys with the `PublicKey` class:

```typescript
import { PublicKey } from '@push.rocks/smartcrypto';

const publicKeyPemString = publicKey.toPemString();
console.log(publicKeyPemString);

const publicKeyFromPem = PublicKey.fromPemString(publicKeyPemString);
```

### Advanced Usage
Beyond basic key generation and format conversion, `@push.rocks/smartcrypto` leverages `node-forge` for advanced cryptographic operations. You can engage in more complex scenarios such as signing data, verifying signatures, and even using the library for SSH key generation.

```typescript
// Example: Signing a message with RSA private key
const message = 'Hello, SmartCrypto!';
const signedMessage = privateKey.signMessage(message);
console.log('Signed Message:', signedMessage);

// Example: Verifying a signature with the corresponding public key
const isVerified = publicKey.verifyMessage(message, signedMessage);
console.log('Is the message verified?', isVerified);
```

Note: The `.signMessage` and `.verifyMessage` methods are conceptual and may require specific implementation or extension of the base classes provided by `@push.rocks/smartcrypto`.

### Conclusion
`@push.rocks/smartcrypto` provides an easy-to-use interface for cryptographic operations, significantly reducing the complexity of managing keys and performing secure data transmission. The examples above showcase a subset of what's possible, encouraging you to explore further and integrate cryptography seamlessly into your Node.js applications.

For more advanced use cases and customization, refer to the [node-forge](https://github.com/digitalbazaar/forge) documentation. `@push.rocks/smartcrypto` is designed to work smoothly with `node-forge`, enabling you to extend its functionalities according to your project's needs.

## License and Legal Information

This repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the [license](license) file within this repository. 

**Please note:** The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.

### Trademarks

This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines, and any usage must be approved in writing by Task Venture Capital GmbH.

### Company Information

Task Venture Capital GmbH  
Registered at District court Bremen HRB 35230 HB, Germany

For any legal inquiries or if you require further information, please contact us via email at hello@task.vc.

By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.
