Tcl

Authenticode Sign using Smartcard or USB Token

See more Code Signing Examples

Demonstrates how to Authenticode sign an EXE or DLL using a smartcard or USB token, such as a Yubikey.

Note: Chilkat's code signing class was added in v9.5.0.97

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.

# First create the following JSON to specify that SHA256 is to be used,
# and provide timestamp server information.

# {
#   "hashAlg": "sha256",
#   "timestampToken": {
#     "enabled": true,
#     "tsaUrl": "http://timestamp.digicert.com",
#     "requestTsaCert": true,
#     "hashAlg": "sha256"
#   }
# }

set json [new_CkJsonObject]

CkJsonObject_UpdateString $json "hashAlg" "sha256"
CkJsonObject_UpdateBool $json "timestampToken.enabled" 1
CkJsonObject_UpdateString $json "timestampToken.tsaUrl" "http://timestamp.digicert.com"
CkJsonObject_UpdateBool $json "timestampToken.requestTsaCert" 1
CkJsonObject_UpdateString $json "timestampToken.hashAlg" "sha256"

# The only difference in signing with a smartcard or USB token
# is that the cert is loaded from a smartcard or USB token, instead of a PFX or from elsewhere
# such as from the Windows certificate store.
set cert [new_CkCert]

# Yubico YubiKey OTP+FIDO+CCID 0, default PIN = 123456
CkCert_put_SmartCardPin $cert "123456"

# Assuming you have the Yubikey inserted into the USB on the computer...
# and there is only 1 signing certificate on the Yubikey, then just load from
# the "smartcard".  (assuming you don't have additional smartcards or USB tokens plugged in)
set success [CkCert_LoadFromSmartcard $cert ""]
if {$success == 0} then {
    puts [CkCert_lastErrorText $cert]
    delete_CkJsonObject $json
    delete_CkCert $cert
    exit
}

# If the smartcard/token has several possible certificates that can be used for signing,
# then see the online documentation for the LoadFromSmartcard method,
# and also see the online documentation and examples for Chilkat Pkcs11 and ScMinidriver.
# There are many possible ways to load a Chilkat certificate object with a cert (and associated private key)
# from a variety of sources.  The only coding difference for any signing function in Chilkat,
# whether it be a PDF, XmlDSig, CMS, etc. is in how the cert is loaded.

# You can sign .exe or .dll files.
set exePath "C:/someOtherDir/HelloWorld.exe"

set signer [new_CkCodeSign]

# If successful, the following call will apply the signature to the EXE (or DLL).
set success [CkCodeSign_AddSignature $signer $exePath $cert $json]
if {$success == 0} then {
    puts [CkCodeSign_lastErrorText $signer]
    delete_CkJsonObject $json
    delete_CkCert $cert
    delete_CkCodeSign $signer
    exit
}

puts "Successfully applied the Authenticode signature."

delete_CkJsonObject $json
delete_CkCert $cert
delete_CkCodeSign $signer