# secure-random-string Node.js module that generates a cryptographically secure random string with a given length ## Usage ```javascript var srs = require('secure-random-string'); ``` ### Default behavior: Generate a random Base64 encoded string 32 characters long. This may include alphanumeric characters as well as the following characters: +, /, =. ```javascript // Sync var result = srs(); // Async srs(function(err, sr) { console.log(sr); }); ``` ### Options: length Optionally, you can specify a 'length' option to specify a length. ```javascript // sync var result = srs({length: 256}); // async srs({length: 256}, function(err, sr) { console.log(sr); }); ``` ### Options: alphanumeric Optionally, you can specify a 'alphanumeric' option to get a alphanumerical chars only. ```javascript // sync var result = srs({alphanumeric: true}); // async srs({alphanumeric: true}, function(err, sr) { console.log(sr); }); ``` ## Error handling An error is possible if there is not enough accumulated entropy to generate cryptographically strong data. In other words, this will not block even if all entropy sources are drained. Note that the sync API throws an exception, while the async API returns the error to the callback. ## Author [Simon Santoro](https://github.com/S2-) ## Contributors [Mark Stosberg](https://github.com/markstos) [Sandro Gomez](https://github.com/mrsangrin) ## License [MIT](https://opensource.org/licenses/MIT)