Cryptografia

Criptografia is a fast and easy-to-use cryptography library for JavaScript and TypeScript, designed to provide secure encryption and decryption functionalities with minimal setup. It supports ECC (Elliptic Curve Cryptography), RSA (Rivest-Shamir-Adleman), and AES (Advanced Encryption Standard) algorithms for asymmetric and symmetric encryption. Additionally, it includes various hashing, encoding, and decoding algorithms to ensure data security.

Whether you're transmitting sensitive messages, storing encrypted data, or handling secure user authentication, Criptografia offers a comprehensive set of tools for developers looking for robust security in their applications.

$3

- ECC (Elliptic Curve Cryptography) – Asymmetric encryption for secure key exchange and message encryption
- RSA (Rivest-Shamir-Adleman) – Asymmetric encryption for secure data transmission and digital signatures
- AES (Advanced Encryption Standard) – Symmetric encryption for fast and efficient data encryption
- Hashing algorithms – Includes SHA-1, SHA-3, SHA-256, SHA-512, and MD5 for data integrity and security
- Encoding and decoding algorithms – Supports Base64 and Hex for data representation and transmission
- Asynchronous and synchronous API options – Provides flexibility for different use cases and performance needs

Installation

Using npm:
``sh
npm install criptografia
`
Using yarn:
`sh
yarn add criptografia
`

List of Contents:

• Usage with RSA


• Usage with ECC


• Usage with AES


• Usage with Hash


• Usage with Encoding and Decoding

Usage with RSA

`javascript
// Signature and Verification
const { publicKey, privateKey } = await RSA.generateKeysAsync();

const message = "Hello, World!";
const signature = await RSA.sign(message, privateKey);
const isValid = await RSA.verify(message, signature, publicKey);

console.log("Public key:", publicKey);
console.log("Private key:", privateKey);
console.log("Original message:", message);
console.log("Signature:", signature);
console.log("Signature is valid:", isValid);
`
`javascript
// // Encryption and Decryption
const { publicKey, privateKey } = await RSA.generateKeysAsync(512); // Generate 512-bit keys, default is 2048

const message = "Hello, World!";
const encryptedMessage = await RSA.encryptAsync(message, publicKey);
const decryptedMessage = await RSA.decryptAsync(encryptedMessage, privateKey);

console.log("Original message:", message);
console.log("Encrypted message:", encryptedMessage);
console.log("Decrypted message:", decryptedMessage);
`


Usage with ECC


`javascript
// Encryption and Decryption
import { ECC } from "criptografia";

const { publicKey, privateKey } = await ECC.generateKeyPairs();

const message = "Hello, World!";
const encryptedMessage = await ECC.encrypt(message, publicKey);
const decryptedMessage = await ECC.decrypt(encryptedMessage, privateKey);

console.log("Original message:", message);
console.log("Encrypted message:", encryptedMessage);
console.log("Decrypted message:", decryptedMessage);
`
`javascript
// Signature and Verification
const { privateKey, publicKey } = await ECC.generateKeyPairs();

const message = 'Hello, world!';

const signature = await ECC.sign(message, privateKey);
const isValid = await ECC.verify(message, signature, publicKey);

console.log('Signature:', signature);
console.log('Signature Valid:', isValid);
`

Usage with AES


`javascript
// Encryption and Decryption
import { AES } from "criptografia";

const key = await AES.generateKey();

const message = 'Hello, world!';
const encryptedMessage = await AES.encrypt(message, key);
const decryptedText = await AES.decrypt(encryptedMessage, key);

console.log('Generated key:', key);
console.log('Encrypted text:', encryptedMessage);
console.log('Decrypted text:', decryptedText);
`




Usage with Asynchronous Hashing Algorithms


`javascript
// Asynchronous Hashing Algorithms
import { HASH } from "criptografia";

const message = "Hello, World!";

const sha1 = await HASH.sha1Async(message);
const sha3 = await HASH.sha3Async(message);
const sha224 = await HASH.sha224Async(message);
const sha256 = await HASH.sha256Async(message);
const sha384 = await HASH.sha384Async(message);
const sha512 = await HASH.sha512Async(message);
const md5 = await HASH.md5Async(message);

console.log("SHA-1:", sha1);
console.log("SHA-3:", sha3);
console.log("SHA-224:", sha224);
console.log("SHA-256:", sha256);
console.log("SHA-384:", sha384);
console.log("SHA-512:", sha512);
console.log("MD5:", md5);
`


Usage with Synchronous Hashing Algorithms


`javascript
// Synchronous Hashing Algorithms
import { HASH } from "criptografia";

const message = "Hello, World!";

const sha1 = await HASH.sha1(message);
const sha3 = await HASH.sha3(message);
const sha224 = await HASH.sha224(message);
const sha256 = await HASH.sha256(message);
const sha384 = await HASH.sha384(message);
const sha512 = await HASH.sha512(message);
const md5 = await HASH.md5(message);

console.log("SHA-1:", sha1);
console.log("SHA-3:", sha3);
console.log("SHA-224:", sha224);
console.log("SHA-256:", sha256);
console.log("SHA-384:", sha384);
console.log("SHA-512:", sha512);
console.log("MD5:", md5);
`

Usage with Synchronous Encoding and Decoding Algorithms


`javascript
// Synchronous Encoding and Decoding Algorithms
import { HASH } from "criptografia";

const message = "Hello, World!";

const base64ToString = await HASH.base64ToString(message);
const stringToBase64 = await HASH.stringToBase64(message);
const base64ToHex = await HASH.base64ToHex(message);
const hexToBase64 = await HASH.hexToBase64(message);
const stringToHex = await HASH.stringToHex(message);
const hexToString = await HASH.hexToString(message);

console.log("Base64 to String:", base64ToString);
console.log("String to Base64:", stringToBase64);
console.log("Base64 to Hex:", base64ToHex);
console.log("Hex to Base64:", hexToBase64);
console.log("String to Hex:", stringToHex);
console.log("Hex to String:", hexToString);
`

Usage with Asynchronous Encoding and Decoding Algorithms


`javascript
// Asynchronous Encoding and Decoding Algorithms
import { HASH } from "criptografia";

const message = "Hello, World!";

const base64ToString = await HASH.base64ToStringAsync(message);
const stringToBase64 = await HASH.stringToBase64Async(message);
const base64ToHex = await HASH.base64ToHexAsync(message);
const hexToBase64 = await HASH.hexToBase64Async(message);
const stringToHex = await HASH.stringToHexAsync(message);
const hexToString = await HASH.hexToStringAsync(message);

console.log("Base64 to String:", base64ToString);
console.log("String to Base64:", stringToBase64);
console.log("Base64 to Hex:", base64ToHex);
console.log("Hex to Base64:", hexToBase64);
console.log("String to Hex:", stringToHex);
console.log("Hex to String:", hexToString);
``