Tcl

PKCS11 Find All Certificates on Smart Card or USB Token

See more PKCS11 Examples

Sample code showing how to examine all the certificates on a smart card or USB token.

Note: This example requires Chilkat v9.5.0.88 or later.

Tcl

load ./chilkat.dll

set success 0

# 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]

# Set your shared lib path -- either a full path to the DLL, .so, or .dylib,
# or just the filename if the driver is in a location that can be automatically found. (Such as in C:\Windows\System32)
CkPkcs11_put_SharedLibPath $pkcs11 "aetpkss1.dll"

set success [CkPkcs11_Initialize $pkcs11]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    delete_CkPkcs11 $pkcs11
    exit
}

# Pass -1 for the slotID to open a session on the first non-empty slot.
set slotID -1

# Open a session.
set readWrite 1
set success [CkPkcs11_OpenSession $pkcs11 $slotID $readWrite]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    delete_CkPkcs11 $pkcs11
    exit
}

# Make it an authenticated session by calling Login.
# 
# If we don't authenticate, then we won't be able to see the private keys, and thus
# we won't know which certificates have an associated private key stored on the smart card.

# The smart card PIN is passed to the Login method.
# userType 1 indicates a "Normal User".
set userType 1
set pin "0000"
set success [CkPkcs11_Login $pkcs11 $userType $pin]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    set success [CkPkcs11_CloseSession $pkcs11]
    delete_CkPkcs11 $pkcs11
    exit
}

# Call FindAllCerts to find all certificates on the smart card or USB token.
set success [CkPkcs11_FindAllCerts $pkcs11]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    set success [CkPkcs11_CloseSession $pkcs11]
    delete_CkPkcs11 $pkcs11
    exit
}

# The NumCerts property is set by FindAllCerts.
set numCerts [CkPkcs11_get_NumCerts $pkcs11]
puts "Number of certs: $numCerts"

set cert [new_CkCert]

set i 0
while {$i < $numCerts} {
    CkPkcs11_GetCert $pkcs11 $i $cert
    set privateKeyNote ""
    if {[CkCert_HasPrivateKey $cert] == 1} then {
        set privateKeyNote "(has private key)"
    }

    puts "$i: $privateKeyNote [CkCert_subjectDN $cert]"
    puts "$i: issuer: [CkCert_issuerDN $cert]"
    puts "----"
    set i [expr $i + 1]
}

# Revert to an unauthenticated session by calling Logout.
set success [CkPkcs11_Logout $pkcs11]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    set success [CkPkcs11_CloseSession $pkcs11]
    delete_CkPkcs11 $pkcs11
    delete_CkCert $cert
    exit
}

# When finished, close the session.
# It is important to close the session (memory leaks will occur if the session is not properly closed).
set success [CkPkcs11_CloseSession $pkcs11]
if {$success == 0} then {
    puts [CkPkcs11_lastErrorText $pkcs11]
    delete_CkPkcs11 $pkcs11
    delete_CkCert $cert
    exit
}

puts "Success."

delete_CkPkcs11 $pkcs11
delete_CkCert $cert