string-entropy

string-entropy
==============

Calculate the information entropy of a string


As pointed out by other sources, string entropy is propably the most reliable way of
scoring a password. This module implements the algorithm described here, using a variable
sized alphabet based on the actual contents of the string.

!image of the formula for information entropy calculation

$3

A simple password strength meter that updates as you type.

$3

See the annotated sources src/index.ts.

$3

``javascript
import { entropy } from "string-entropy";

console.log(entropy('correct horse battery staple'));
// outputs 132
console.log(entropy('Secret01'));
// outputs 66
``