(VBScript) Encrypt / Decrypt a File and Verify it has not Changed

Demonstrates how to encrypt and decrypt a file, and verify it has not changed.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2")
set crypt = CreateObject("Chilkat.Crypt2")

crypt.CryptAlgorithm = "aes"
crypt.CipherMode = "cbc"
crypt.KeyLength = 128
crypt.PaddingScheme = 0

ivHex = "000102030405060708090A0B0C0D0E0F"
crypt.SetEncodedIV ivHex,"hex"

keyHex = "00010203040506071011121314151617"
crypt.SetEncodedKey keyHex,"hex"

dataFile = "qa_data/zips/HBIQ040615300005.ZIP"
outFile = "qa_output/HBIQ040615300005.enc"
outFile2 = "qa_output/HBIQ040615300005.ZIP"

success = crypt.CkEncryptFile(dataFile,outFile)
success = crypt.CkDecryptFile(outFile,outFile2)

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.FileAccess")
set fac = CreateObject("Chilkat.FileAccess")
bEqual = fac.FileContentsEqual(dataFile,outFile2)
If (bEqual <> 1) Then
    outFile.WriteLine("Decrypted file not equal to the original.")
Else
    outFile.WriteLine("Success.")
End If


outFile.Close