I'm trying to connect to PayBox payment service. They propose a PHP solution, but I'm using Nodejs. In their solution they use PHP pack function of which I can't find an equivalent in Node.js.
This is the target:
$binKey = pack("H*", $secretKeyTest);
If you need to convert a hexadecimal string into a binary buffer, then something like this may work for you:
var binKey = new Buffer(secretKeyTest, "hex");
For more info on how to use buffers in Node, see: