node-pogo-signature

signature (aka "unknown6") encryption bindings for node

todo

• look into native js implementation of encrypt.c
• start writing signature builder (in progress)
• submit PRs to node apis with signature patches

may include some signature building utils soon

install

on npm install the module will self-build. the c/c++ code is located within the /src directory.

you may require the node-gyp package installed globally to build:

npm install node-gyp -g

usage

module.encrypt(<Buffer> input, <Buffer> iv, <function> callback)

Info:

simply passes input and iv through the encrypt method found in the native module.

the callback's err is truthy when input validation occurs (note: iv must be 32 bytes long)

Arguments:

• input (Buffer): a protobuf-encoded signature message to encrypt
• initVector (Buffer): a 32-byte random initialization vector to encrypt the data against
• cb(err, encryptedSignature) (Func): a callback function to execute when encryption by the moldue has been completed. success when err is null. encryptedSignature is a buffer containing the encrypted information.

example

the following will read an input buffer read directly from a file, in the real world this will most likely come from an encoded protobuf structure you generated with your api requests.

var pogoSignature = require('node-pogo-signature');

var dump = fs.readFileSync('./signatureBinary.bin');
var iv = crypto.randomBytes(32);


pogoSignature.encrypt(dump, iv, function(err, result) {
	if (err) return console.error(err);

	console.log('output length: ', result.length)
    console.log('output iv: ', result.slice(0, 32).toString('hex'));
});

notes

• contribute whatever you can
• credit for encrypt.c goes to friends @ /r/pkmngodev (repo is gone)