CkPython Requires Chilkat v11.7.0+

Authenticode Sign a VBScript File (.vbs)

See more Code Signing Examples

Demonstrates how to Authenticode sign a VBScript file (.vbs). Signing VBScript files requires Chilkat v11.7.0 or later. The signature is appended to the file as a comment block. CkPython

import sys
import chilkat

success = False

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

#  Signing a VBScript file (.vbs) requires Chilkat v11.7.0 or later.

#  Load the code signing certificate.  It must have access to its private key.
cert = chilkat.CkCert()
success = cert.LoadPfxFile("C:/someDir/myCodeSigningCert.pfx","pfx password")
if (success == False):
    print(cert.lastErrorText())
    sys.exit()

#  Sign with SHA256, and ask a timestamp authority for a timestamp.  A timestamp lets the
#  signature continue to validate after the code signing certificate has expired.
#  
#  {
#    "hashAlg": "sha256",
#    "timestampToken": {
#      "enabled": true,
#      "tsaUrl": "http://timestamp.digicert.com",
#      "requestTsaCert": true,
#      "hashAlg": "sha256"
#    }
#  }
json = chilkat.CkJsonObject()
json.UpdateString("hashAlg","sha256")
json.UpdateBool("timestampToken.enabled",True)
json.UpdateString("timestampToken.tsaUrl","http://timestamp.digicert.com")
json.UpdateBool("timestampToken.requestTsaCert",True)
json.UpdateString("timestampToken.hashAlg","sha256")

scriptPath = "C:/someDir/Backup.vbs"

signer = chilkat.CkCodeSign()

#  The script is modified in place.  The signature is appended to the end of the file as a comment block:
#  
#    '' SIG '' Begin signature block
#    '' SIG '' MIIoKgYJKoZIhvcNAQcCoIIoGzCCKBcCAQExDzANBglg
#    '' SIG '' ...
#    '' SIG '' End signature block
#  
#  If the script is already signed, the new signature block replaces the existing one.
success = signer.AddSignature(scriptPath,cert,json)
if (success == False):
    print(signer.lastErrorText())
    sys.exit()

print("Signed the VBScript file.")

#  Verify the signature that was just added.
sigInfo = chilkat.CkJsonObject()
valid = signer.VerifySignature(scriptPath,sigInfo)
if (valid == False):
    print(signer.lastErrorText())
    sys.exit()

print("The signature is valid.")

#  Note: Other script types, such as JScript (.js), are not supported.
#  AddSignature returns false for an unsupported file type and does not modify the file.