(PowerShell) WPA Key Calculation from PassPhrase to Hex

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

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

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

$crypt = New-Object Chilkat.Crypt2

# 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)

$($wpaHexKey)