secure-web-storage
v1.0.2
Published
A simple wrapper for localStorage/sessionStorage that allows one to encrypt/decrypt the data being stored.
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SecureStorage
A simple wrapper for localStorage/sessionStorage that allows one to encrypt/decrypt the data being stored.
Install:
$ npm install secure-web-storage
What SecureStorage Looks Like
app.js:
var CryptoJS = require("crypto-js");
var SECRET_KEY = 'my secret key';
var secureStorage = new SecureStorage(localStorage, {
hash: function hash(key) {
key = CryptoJS.SHA256(key, SECRET_KEY);
return key.toString();
},
encrypt: function encrypt(data) {
data = CryptoJS.AES.encrypt(data, SECRET_KEY);
data = data.toString();
return data;
},
decrypt: function decrypt(data) {
data = CryptoJS.AES.decrypt(data, SECRET_KEY);
data = data.toString(CryptoJS.enc.Utf8);
return data;
}
});
var data = {
secret: 'data'
};
// there is no need to stringify/parse you objects before and after storing.
secureStorage.setItem('data', data);
// stores in localStorage like:
// key => value
// "ad36d572..." => "w1svi6n..."
var decryptedData = secureStorage.getItem('data');
// returns { secret: 'data' }
secureStorage.removeItem('data');
// removes the entry 'data'
secureStorage.key(id)
// returns the hashed version of the key you passed into setItem with the given id.
secureStorage.clear();
// clears all data in the underlining sessionStorage/localStorage.
secureStorage.length;
// the number of entries in the underlining sessionStorage/localStorage.