Crypto in Nodejs and Ruby - ruby-on-rails

Question

I want crypto a string and pass to Rails app,so I find the crypto library both in Nodejs and Ruby.
In Nodejs:
var crypto = require('crypto'),
algorithm = 'aes-256-ctr',
password = 'd6F3Efeqd6F3Efeqd6F3Efeqd6F3Efeq';
function encrypt(text){
var cipher = crypto.createCipher(algorithm,password)
var crypted = cipher.update(text,'ascii',"base64")
crypted += cipher.final("base64");
return crypted;
}
The result is :
encrypt("1") //-输出 2g==
In Ruby
def encrypt(des_text)
des = OpenSSL::Cipher::Cipher.new('aes-256-ctr')
des.encrypt
des.key = 'd6F3Efeqd6F3Efeqd6F3Efeqd6F3Efeq'
result = des.update(des_text)
result << des.final
return Base64.encode64 result
end
The result is :
encrypt("1") # 输出 1A==
So I use the same way and key to crypto a same string,Why the result is not the same?

Answer 1

Difference between crypto.createCipher(algorithm, password) and crypto.createCipheriv(algorithm, key, iv) is that password is used to derive key and IV.
var crypto = require('crypto'),
algorithm = 'aes-256-ctr',
key = 'd6F3Efeqd6F3Efeqd6F3Efeqd6F3Efeq',
iv = "1234567890123456";
function encrypt(text){
var cipher = crypto.createCipheriv(algorithm,key,iv)
var crypted = cipher.update(text,'utf-8',"base64")
crypted += cipher.final("base64");
return crypted;
}
console.log(encrypt("1")); // return bQ==
In Ruby, if you haven't specify iv then it will use a default iv.
require 'openssl'
require 'base64'
def encrypt(des_text)
des = OpenSSL::Cipher::Cipher.new('aes-256-ctr')
des.encrypt
des.key = 'd6F3Efeqd6F3Efeqd6F3Efeqd6F3Efeq'
des.iv = "1234567890123456"
result = des.update(des_text)
result << des.final
return Base64.encode64 result
end
p encrypt("1").strip # return bQ==