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(Tcl) Import a PFX/P12 into the Windows Certificate Stores

Demonstrates how to import the certificates contained in a .pfx/.p12 to the Windows certificate stores.

Chilkat Tcl Extension Downloads

Chilkat Tcl Extension Downloads

load ./chilkat.dll

set primaryCert [new_CkCert]

# Load a PFX file into a certificate object.
# The cert object will contain the certificate from the PFX that has a private key.
# The certs in the chain of authentication (if contained in the PFX) are also loaded,
# and can be accessed by getting the certificate chain (see below).
# If the PFX did not include the issuer certs in the chain of authentication, then Chilkat will
# automatically try to construct the issuer chain from the CA and intermedicate CA certs
# already installed on the Windows system.
set pfxPassword "myPfxPassword"
set success [CkCert_LoadPfxFile $primaryCert "qa_data/pfx/somePfx.p12" $pfxPassword]
if {$success == 0} then {
    puts [CkCert_lastErrorText $primaryCert]
    delete_CkCert $primaryCert
    exit
}

# certChain is a CkCertChain
set certChain [CkCert_GetCertChain $primaryCert]
if {[CkCert_get_LastMethodSuccess $primaryCert] == 0} then {
    puts [CkCert_lastErrorText $primaryCert]
    delete_CkCert $primaryCert
    exit
}

# If the certificate chain reaches the root CA cert, then the last cert in the chain
# is the root CA cert.
set chainReachesRoot [CkCertChain_get_ReachesRoot $certChain]
if {$chainReachesRoot == 1} then {
    puts "The certificate chain reaches the root CA cert."
}

# cert is a CkCert

set i 0
set numCerts [CkCertChain_get_NumCerts $certChain]
while {$i < $numCerts} {
    set cert [CkCertChain_GetCert $certChain $i]
    puts "SubjectDN $i: [CkCert_subjectDN $cert]"
    puts "IssuerDN $i: [CkCert_issuerDN $cert]"
    puts "--"
    delete_CkCert $cert

    set i [expr $i + 1]
}

# The primary cert having the private key will be imported into the Current User "My" certificate store.
# Any intermediate root certificates will be imported into certificate store for intermediate certificate authorities.
# The root CA cert will be imported into the Root CA cert store.

# Let's open each of these 3 certificate stores..
set certStoreCU [new_CkCertStore]

set certStoreCA [new_CkCertStore]

set certStoreRootCA [new_CkCertStore]

set readOnlyFlag 0

# "CurrentUser" and "My" are the exact keywords to select your user account's certificate store.
set success [CkCertStore_OpenWindowsStore $certStoreCU "CurrentUser" "My" $readOnlyFlag]
if {$success == 0} then {
    puts "Failed to open the CurrentUser/My certificate store for read/write."
    delete_CkCertChain $certChain

    delete_CkCert $primaryCert
    delete_CkCertStore $certStoreCU
    delete_CkCertStore $certStoreCA
    delete_CkCertStore $certStoreRootCA
    exit
}

# Certificate store for intermediate certification authorities (CAs). 
set success [CkCertStore_OpenWindowsStore $certStoreCA "CurrentUser" "CertificationAuthority" $readOnlyFlag]
if {$success == 0} then {
    puts "Failed to open the CurrentUser/CertificationAuthority certificate store for read/write."
    delete_CkCertChain $certChain

    delete_CkCert $primaryCert
    delete_CkCertStore $certStoreCU
    delete_CkCertStore $certStoreCA
    delete_CkCertStore $certStoreRootCA
    exit
}

# Certificate store for trusted root certification authorities (CAs). 
set success [CkCertStore_OpenWindowsStore $certStoreRootCA "CurrentUser" "Root" $readOnlyFlag]
if {$success == 0} then {
    puts "Failed to open the CurrentUser/Root certificate store for read/write."
    delete_CkCertChain $certChain

    delete_CkCert $primaryCert
    delete_CkCertStore $certStoreCU
    delete_CkCertStore $certStoreCA
    delete_CkCertStore $certStoreRootCA
    exit
}

# Iterate over the certs in the chain and import each into the desired certificate store.
set allSuccess 1
set i 0
while {$i < $numCerts} {
    set cert [CkCertChain_GetCert $certChain $i]
    if {$i == 0} then {
        # Import the primary certificate into the CurrentUser/My certificate store.
        set success [CkCertStore_AddCertificate $certStoreCU $cert]
        if {$success == 0} then {
            puts [CkCertStore_lastErrorText $certStoreCU]
            set allSuccess 0
        }

    }     else {
        if {expr [$i == [expr $numCerts - 1]]  &&  [$chainReachesRoot == 1]} then {
            # Add the root CA certificate to the CurrentUser/Root certificate store.
            # (Your application can obviously choose whether this should be done or not.  Perhaps you prompt the user.)

            # Note: If the root CA cert is already present in the Windows certificate store, Windows will display
            # a dialog to ask if it should be deleted.  Chilkat does not explicitly display dialogs.
            set success [CkCertStore_AddCertificate $certStoreRootCA $cert]
            if {$success == 0} then {
                puts [CkCertStore_lastErrorText $certStoreRootCA]
                set allSuccess 0
            }

        }         else {
            # This is an intermediate CA certificate.
            set success [CkCertStore_AddCertificate $certStoreCA $cert]
            if {$success == 0} then {
                puts [CkCertStore_lastErrorText $certStoreCA]
                set allSuccess 0
            }

        }

    }

    if {$success == 0} then {
        puts "Failed to import certificate."
    }

    delete_CkCert $cert

    set i [expr $i + 1]
}

delete_CkCertChain $certChain

puts "allSuccess = $allSuccess"

delete_CkCert $primaryCert
delete_CkCertStore $certStoreCU
delete_CkCertStore $certStoreCA
delete_CkCertStore $certStoreRootCA

 

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