adler32-js
This is a coffee-script port of adler32.c from zlib, written by Mark Adler. Port by Jason Walton.
Installation
npm install --save adler32-js
Usage
adler32-js complies to the Hash interface from the node.js crypto package:
Adler32 = require('adler32-js');
hash = new Adler32();
hash.update('Hello world!');
console.log("Digest: ", hash.digest('hex'));
Unlike crypto Hash objects, Adler32 object can be recycled using the reset() method.
If you are after the raw integer value, you can also use:
hash = new Adler32();
hash.update('Hello world!');
console.log("Digest as int: ", hash.result());
Helper functions are also available for hashing strings, files, and streams:
Adler32.fromStream(stream, {encoding: 'hex'}, function(err, result) {
console.log("Digest", result);
});
Adler32.fromFile('./foo.txt', {encoding: 'hex'}, function(err, result) {
console.log("Digest", result);
});
result = Adler32.fromFileSync('./foo.txt', {encoding: 'hex'});
result = Adler32.fromString('Hello world!');