This is my crypto performance test.

First, here is the list of npm packages I use:

• microtime
• node-uuid
• dcrypt

There are couple tests:
1) Just Date.now() + Math.rand();
2) Built-in hash md5 / sha512
3) Built-in encrypt & decrypt with aes-256-cbc
4) 3rd party aes 256 js lib
5) NPM dcrypt with aes-256-cbc


Files:

• test-aes.js
• test-crypto-run.js

Result:

• output.txt

Conclusion:


The built-in crypt library is fast and generate the same result as dcrypt library as expected.  They both rely on the openssl.    Node-uuid is 40% slower than date+random number for generating unique number. However, it is only ~50 micro seconds difference.   Not a big deal for most application.  :-)