HSMR

HSMR is a collection of cryptographic commands usually implemented on a HSM (Hardware Security Module). These are implemented for your education or for testing purposes and should not be used to replace an actual HSM.

gem install hsmr

require 'hsmr'

# Create a Key
> key=HSMR::Key.new("4CA2161637D0133E5E151AEA45DA2A12")
=> 4CA2 1616 37D0 133E 5E15 1AEA 45DA 2A12 
> key.key
=> "L\xA2\x16\x167\xD0\x13>^\x15\x1A\xEAE\xDA*\x12" 
> key.to_s
=> "4CA2 1616 37D0 133E 5E15 1AEA 45DA 2A12" 
> key.kcv
=> "7B0898" 
> key.parity
=> "odd" 

# Generate a PVV

pan="5999997890123412"
pin="1234"
pvki="1"
pvv = HSMR.pvv(key, pan, pvki, pin)
=> "0798"

• Key / Componet features
  • Create Keys and Components
  • XOR Keys and Components together
  • Find Key Check Values (kcv)
  • Determine and change key parity
• Encrypt / Decrypt PIN Blocks
• Generate IBM3624 PINs
• Generate PVV, CVV & CVV2 values

• Source hosted on GitHub.
• Report issues on GitHub Issues.
• Pull requests are awesome! Please include test::unit tests

The gem is available as open source under the terms of the MIT License.