Visual FoxPro Requires Chilkat v11.7.0+

Authenticode Sign a PowerShell Script (.ps1, .psm1, .psd1)

See more Code Signing Examples

Demonstrates how to Authenticode sign a PowerShell script. PowerShell scripts (.ps1), modules (.psm1) and data files (.psd1) can be signed starting in Chilkat v11.7.0. The signature is appended to the file as a comment block, and the file keeps its text encoding. Visual FoxPro

LOCAL lnSuccess
LOCAL loCert
LOCAL loJson
LOCAL lcScriptPath
LOCAL loSigner
LOCAL loSigInfo
LOCAL lnValid

lnSuccess = 0

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

*  Signing PowerShell files requires Chilkat v11.7.0 or later.
*  The same code signs a script (.ps1), a module (.psm1), or a data file (.psd1).

*  Load the code signing certificate.  It must have access to its private key.
loCert = CreateObject('Chilkat.Cert')
lnSuccess = loCert.LoadPfxFile("C:/someDir/myCodeSigningCert.pfx","pfx password")
IF (lnSuccess = 0) THEN
    ? loCert.LastErrorText
    RELEASE loCert
    CANCEL
ENDIF

*  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"
*    }
*  }
loJson = CreateObject('Chilkat.JsonObject')
loJson.UpdateString("hashAlg","sha256")
loJson.UpdateBool("timestampToken.enabled",1)
loJson.UpdateString("timestampToken.tsaUrl","http://timestamp.digicert.com")
loJson.UpdateBool("timestampToken.requestTsaCert",1)
loJson.UpdateString("timestampToken.hashAlg","sha256")

lcScriptPath = "C:/someDir/Deploy.ps1"

loSigner = CreateObject('Chilkat.CodeSign')

*  The script is modified in place.  The signature is appended to the end of the file as a comment block:
*  
*    # SIG # Begin signature block
*    # MIIoKgYJKoZIhvcNAQcCoIIoGzCCKBcCAQExDzANBglghkgBZQMEAgEFADB5Bgor
*    # ...
*    # SIG # End signature block
*  
*  The text encoding of the file (UTF-8, UTF-8 with BOM, or UTF-16) is kept.
*  If the script is already signed, the new signature block replaces the existing one.
lnSuccess = loSigner.AddSignature(lcScriptPath,loCert,loJson)
IF (lnSuccess = 0) THEN
    ? loSigner.LastErrorText
    RELEASE loCert
    RELEASE loJson
    RELEASE loSigner
    CANCEL
ENDIF

? "Signed the PowerShell script."

*  Verify the signature that was just added.
*  Any change made to the script after it is signed, even to a comment, invalidates the signature.
loSigInfo = CreateObject('Chilkat.JsonObject')
lnValid = loSigner.VerifySignature(lcScriptPath,loSigInfo)
IF (lnValid = 0) THEN
    ? loSigner.LastErrorText
    RELEASE loCert
    RELEASE loJson
    RELEASE loSigner
    RELEASE loSigInfo
    CANCEL
ENDIF

? "The signature is valid."

RELEASE loCert
RELEASE loJson
RELEASE loSigner
RELEASE loSigInfo