(Tcl) PKCS11 Export Public Key from HSM

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Demonstrates how to export a public key from a smartcard or token.

Note: This example requires Chilkat v9.5.0.96 or later.

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load ./chilkat.dll

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

# Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

set pkcs11 [new_CkPkcs11]

# Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
# (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
CkPkcs11_put_SharedLibPath $pkcs11 "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll"

# Establish a logged-on session. (We can typically skip the login by passing an empty PIN if only working with public keys)
# Use your actual PIN here, or an empty string to skip login.
set pin "0000"
set userType 1
set success [CkPkcs11_QuickSession $pkcs11 $userType $pin]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    delete_CkPkcs11 $pkcs11
    exit
}

# Get the handle of the public key we wish to export.
# You can find public keys in many different ways.
# This example will search for a public key by label.

# Provide a template to find a PKCS11 object.
set jsonTemplate [new_CkJsonObject]

# Find the public key with the label "Belgium eHealth".
CkJsonObject_UpdateString $jsonTemplate "class" "public_key"
CkJsonObject_UpdateString $jsonTemplate "label" "Belgium eHealth"

set pubKeyHandle [CkPkcs11_FindObject $pkcs11 $jsonTemplate]
if {$pubKeyHandle == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    delete_CkPkcs11 $pkcs11
    delete_CkJsonObject $jsonTemplate
    exit
}

# Export to a Chilkat public key object.
set pubKey [new_CkPublicKey]

set success [CkPkcs11_ExportPublicKey $pkcs11 $pubKeyHandle $pubKey]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    delete_CkPkcs11 $pkcs11
    delete_CkJsonObject $jsonTemplate
    delete_CkPublicKey $pubKey
    exit
}

# Get the public key as PKCS8 PEM.
puts [CkPublicKey_getPem $pubKey 0]

CkPkcs11_Logout $pkcs11
CkPkcs11_CloseSession $pkcs11

delete_CkPkcs11 $pkcs11
delete_CkJsonObject $jsonTemplate
delete_CkPublicKey $pubKey