bomd5

A dependency-free incremental MD5 hashing library for modern(ish) browsers.

Main goals of bomd5 are:

• Correctness, even for unbounded inputs and for both little-endian and big-endian environments.
• Incremental hashing. We want to be able to hash large amounts of data without needing to keep all of it in memory at once.
• ArrayBuffer and Uint8Array input support. This allows bomd5 to work well together with other APIs such as FileReader and TextEncoder.
• Good performance in most common browser environments, reasonably fast for others. See a performance comparison against other fine incremental ArrayBuffer/Uint8Array MD5 hashers at jsperf.com.
• Minimal dependencies - preferably none - for easier inclusion to browser environments. Currently bomd5 doesn't have any external dependencies.

Installation

npm install bomd5

Example

var MD5 = require("bomd5");
var data = new Uint8Array(1024 * 1024);

// Accept (optional) initial input
var md5 = new MD5(data);

for (var i = 0; i < 100; i++) {
    // Allow incremental hashing
    md5.update(data);
}

// Console output: 7092f29539399585b4ca1f33a2a432fe
console.log(md5.hexDigest());

References

The code is based on RFC 1321 and the Wikipedia article on MD5.