# Crypto Currency Module

This is a Node.js module for converting currency and encrypting/decrypting transaction details.

## Installation

To install the module, use npm:

```bash
npm install crypto-currency-module

Usage

const { convertCurrency, encryptTransactionDetails, decryptTransactionDetails } = require('crypto-currency-module');

// Convert currency
const convertedAmount = convertCurrency(100, 'BTC', 'ETH');
console.log('Converted Amount:', convertedAmount);

// Encrypt transaction details
const transaction = { from: 'Alice', to: 'Bob', amount: 10 };
const key = 'secret_key';
const encryptedTransaction = encryptTransactionDetails(transaction, key);
console.log('Encrypted Transaction:', encryptedTransaction);

// Decrypt transaction details
const decryptedTransaction = decryptTransactionDetails(encryptedTransaction, key);
console.log('Decrypted Transaction:', decryptedTransaction);

API

convertCurrency(amount, fromCurrency, toCurrency)

Converts the given amount from one cryptocurrency to another.

• amount (number): The amount to convert.
• fromCurrency (string): The currency to convert from (e.g., 'BTC').
• toCurrency (string): The currency to convert to (e.g., 'ETH').

Returns the converted amount.

encryptTransactionDetails(transaction, key)

Encrypts the given transaction details using the provided key.

• transaction (object): The transaction details to encrypt.
• key (string): The encryption key.

Returns the encrypted transaction details.

decryptTransactionDetails(encryptedTransaction, key)

Decrypts the encrypted transaction details using the provided key.

• encryptedTransaction (string): The encrypted transaction details.
• key (string): The decryption key.

Returns the decrypted transaction details.

License

This project is licensed under the MIT License - see the LICENSE file for details.