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secure-random-string

Node.js module that generates a cryptographically secure random string with a given length

Usage

var srs = require('secure-random-string');

Default behavior: Generate a random string 32 characters long.

// Sync
var result = srs();

// Async
srs(function(err, sr) {
	console.log(sr);
});

Options: length, urlsafe

Optionally, you can specify a 'length' option to specify a length.

The 'urlsafe' option replaces a potential + character with - and the / character with _, created a valid base64url format string.

// sync
var result = srs({length: 256, urlsafe:true});

// async
srs({length: 256, urlsafe: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

Contributors

Mark Stosberg

License

MIT

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JavaScript 100%