(Ruby) WPA Key Calculation from PassPhrase to Hex

Demonstrates how to calculate a WPA key from a passprhase and network SSID.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

crypt = Chilkat::CkCrypt2.new()

# The "ps" is the WPA passphrase
pw = "password"
pwCharset = "ansi"

# Hash algorithms may be: sha1, md2, md5, etc.
hashAlg = "sha1"

# Specify the SSID in hex:
# For example, if the SSID is "ABC", then the 
# hex values for these us-ascii chars is "414243"
ssidHex = "414243"

# The WPA key calculation will always use 4096 iterations.
iterationCount = 4096

# The WPA hex output should be 256 bits.
outputBitLen = 256

# Indicate that "hex" is to be returned.
enc = "hex"

wpaHexKey = crypt.pbkdf2(pw,pwCharset,hashAlg,ssidHex,iterationCount,outputBitLen,enc)

print wpaHexKey + "\n";