(PowerShell) Create Egypt ITIDA CAdES-BES .p7s Signature (with strings in-memory)

See more Egypt ITIDA Examples

Demonstrates how to create a .p7s signature that fits Egypt's ITIDA requirements.

Note: This example requires Chilkat v9.5.0.75 or greater.

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

$cert = New-Object Chilkat.Cert

# There are many ways to load the certificate.  
# This example was created for a customer using an ePass2003 USB token.
# Assuming the USB token is the only source of a hardware-based private key..
$success = $cert.LoadFromSmartcard("")
if ($success -ne $true) {
    $($cert.LastErrorText)
    exit
}

# Tell the crypt component to use this cert.
$success = $crypt.SetSigningCert($cert)
if ($success -ne $true) {
    $($crypt.LastErrorText)
    exit
}

$cmsOptions = New-Object Chilkat.JsonObject
# Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used.
$cmsOptions.UpdateBool("DigestData",$true)
$cmsOptions.UpdateBool("OmitAlgorithmIdNull",$true)
$crypt.CmsOptions = $cmsOptions.Emit()

# The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures. 
# To create a CAdES-BES signature, set this property equal to true. 
$crypt.CadesEnabled = $true

$crypt.HashAlgorithm = "sha256"

$jsonSigningAttrs = New-Object Chilkat.JsonObject
$jsonSigningAttrs.UpdateInt("contentType",1)
$jsonSigningAttrs.UpdateInt("signingTime",1)
$jsonSigningAttrs.UpdateInt("messageDigest",1)
$jsonSigningAttrs.UpdateInt("signingCertificateV2",1)
$crypt.SigningAttributes = $jsonSigningAttrs.Emit()

# By default, all the certs in the chain of authentication are included in the signature.
# If desired, we can choose to only include the signing certificate:
$crypt.IncludeCertChain = $false

# Make sure we sign the utf-8 byte representation of the JSON string
$crypt.Charset = "utf-8"

# Create the CAdES-BES signature.
$textToSign = "`"issuer`"`"address`"`"branchID`"`"0`"`"country`"`"EG`"`"regionCity..."

$crypt.EncodingMode = "base64"
$sigBase64 = $crypt.SignStringENC($textToSign)
if ($crypt.LastMethodSuccess -eq $false) {
    $($crypt.LastErrorText)
    exit
}

$("Base64 signature:")
$($sigBase64)