Throws error if buffer is passed in secret

[detj]

Passing buffer in secret doesn't work

var crypto = require('crypto');
var otp = require('otp')({
  secret: crypto.randomBytes(256);
});

console.log(otp.hotp());

throws the following error

/Users/detj/tmp/plivo-try/node_modules/otp/node_modules/thirty-two/lib/thirty-two/thirty-two.js:121
            throw new Error('Invalid input - it is not base32 encoded string');
                  ^
Error: Invalid input - it is not base32 encoded string
    at Object.exports.decode (plivo-try/node_modules/otp/node_modules/thirty-two/lib/thirty-two/thirty-two.js:121:16)
    at OTP.hotp (plivo-try/node_modules/otp/otp.js:65:58)
    at Object.<anonymous> (/Users/detj/tmp/plivo-try/otp.js:20:17)
    at Module._compile (module.js:460:26)
    at Object.Module._extensions..js (module.js:478:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Function.Module.runMain (module.js:501:10)
    at startup (node.js:129:16)
    at node.js:814:3

Tried with node 0.12.2 and node 0.10.38

[pipobscure]

Sorry for the late response. The reason for this is because passing in a buffer is in fact invalid.

This requires not a buffer, but rather a bas32 encoded string. If you want to generate a new secret, all you have to do is not pass it in during creation and it will then be available on the istance as secret.

var otp = require('otp')({});
console.log('Secret: ', otp.secret)