react-native-rsa-node
React native rsa crypto lib
THIS IS A PORT OF https://www.npmjs.com/package/react-native-rsa-native FOR NODEJS
The use case
Initially this was created for encrypted messaging
Client would generate RSA key pairs and store private key locally and share the public key.
How to use
npm install react-native-rsa
Generate RSA keys
var RSAKey = require('react-native-rsa');
const bits = 1024;
const exponent = '10001'; // must be a string. This is hex string. decimal = 65537
var rsa = new RSAKey();
rsa.generate(bits, exponent);
var publicKey = rsa.getPublicString(); // return json encoded string
var privateKey = rsa.getPrivateString(); // return json encoded string
Encrypt
var rsa = new RSAKey();
rsa.setPublicString(publicKey);
var originText = 'sample String Value';
var encrypted = rsa.encrypt(originText);
Decrypt
rsa.setPrivateString(privateKey);
var decrypted = rsa.decrypt(encrypted); // decrypted == originText
Tested works with ursa in nodejs (with ursa padding set to PKCS1).
Credits
THIS IS A PORT OF https://www.npmjs.com/package/react-native-rsa-native FOR NODEJS This lib uses Tom Wu's jsbn http://www-cs-students.stanford.edu/~tjw/jsbn/