(Tcl) Create CAdES-BES .p7m using Smart Card or USB Token

Demonstrates how to create a CAdES BES invoice.xml.p7m using a certificate stored on a smart card or USB token.

Note: This example requires Chilkat v9.5.0.77 and at the time of this writing is restricted to the Windows operating system.

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load ./chilkat.dll

# Note: Requires Chilkat v9.5.0.77 or greater.

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

set crypt [new_CkCrypt2]

# Use a certificate on a smartcard or USB token.
set cert [new_CkCert]

# Load the certificate on the smartcard currently in the reader (or on the USB token).
# Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
# See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
set success [CkCert_LoadFromSmartcard $cert ""]
if {$success != 1} then {
    puts [CkCert_lastErrorText $cert]
    delete_CkCrypt2 $crypt
    delete_CkCert $cert
    exit
}

# Provide the smartcard PIN.
# If the PIN is not explicitly provided here, the Windows OS should
# display a dialog for the PIN.
CkCert_put_SmartCardPin $cert "000000"

# Provide the certificate for signing.
set success [CkCrypt2_SetSigningCert $crypt $cert]
if {$success != 1} then {
    puts [CkCrypt2_lastErrorText $crypt]
    delete_CkCrypt2 $crypt
    delete_CkCert $cert
    exit
}

# Indicate that SHA-256 should be used.
CkCrypt2_put_HashAlgorithm $crypt "sha256"

# Specify the signed attributes to be included.
# (This is what makes it CAdES-BES compliant.)
set jsonSignedAttrs [new_CkJsonObject]

CkJsonObject_UpdateInt $jsonSignedAttrs "contentType" 1
CkJsonObject_UpdateInt $jsonSignedAttrs "signingTime" 1
CkJsonObject_UpdateInt $jsonSignedAttrs "messageDigest" 1
CkJsonObject_UpdateInt $jsonSignedAttrs "signingCertificateV2" 1
CkCrypt2_put_SigningAttributes $crypt [CkJsonObject_emit $jsonSignedAttrs]

set inFile "qa_data/xml/IT01234567890_11002.xml"
set sigFile "qa_output/IT01234567890_11002.xml.p7m"

# Create the CAdES-BES signature, which contains the original data.
set success [CkCrypt2_CreateP7M $crypt $inFile $sigFile]
if {$success == 0} then {
    puts [CkCrypt2_lastErrorText $crypt]
    delete_CkCrypt2 $crypt
    delete_CkCert $cert
    delete_CkJsonObject $jsonSignedAttrs
    exit
}

puts "Success."

delete_CkCrypt2 $crypt
delete_CkCert $cert
delete_CkJsonObject $jsonSignedAttrs