(PowerShell) 2-Key Triple DES (112 bits)

Demonstrates 2-Key Triple DES encryption (112-bit 3DES encryption).

Chilkat .NET Downloads Chilkat .NET Assemblies

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

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

$crypt = New-Object Chilkat.Crypt2

# Specify 3DES for the encryption algorithm:
$crypt.CryptAlgorithm = "3des"

$crypt.CipherMode = "ecb"

# For 2-Key Triple-DES, use a key length of 128
# (Given that each byte's msb is a parity bit, the strength is really 112 bits).
$crypt.KeyLength = 128

# Pad with zeros
$crypt.PaddingScheme = 3

# EncodingMode specifies the encoding of the output for
# encryption, and the input for decryption.
# It may be "hex", "url", "base64", or "quoted-printable".
$crypt.EncodingMode = "hex"

# Let's create a secret key by using the MD5 hash of a password.
# The Digest-MD5 algorithm produces a 16-byte hash (i.e. 128 bits)
$crypt.HashAlgorithm = "md5"
$keyHex = $crypt.HashStringENC("secretPassword")

# Set the encryption key:
$crypt.SetEncodedKey($keyHex,"hex")

# Encrypt
$encStr = $crypt.EncryptStringENC("The quick brown fox jumped over the lazy dog")
$($encStr)

# Now decrypt:
$decStr = $crypt.DecryptStringENC($encStr)
$($decStr)