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(CkPython) HTTPS Client Certificate using Smartcard or TokenSee more HTTP ExamplesExplains how to use a client certificate for HTTP TLS mutual authentication where the certificate and private key exists on an HSM (Smartcard or USB Token).
import sys import chilkat http = chilkat.CkHttp() # To do HTTPS mutual authentication where the certificate and private key are stored # on a smartcard or token, first load the Chilkat certificate object from the smartcard/token, # and then pass the certificate object to the Http object's SetSslClientCert method. # Doing HTTP mutual authentication is the same regardless of the source of the cert + private key. # The steps are to first load the certificate from the source, then pass the cert object to the HTTP object. # Chilkat provides methods for loading the certificate from a variety of sources, such as smartcards, tokens, # .pfx/.p12 files, Windows registry-based certificate stores, PEM files, or other file formats. cert = chilkat.CkCert() # The easiest way to load a certificate from an HSM is to call cert.LoadFromSmartcard with # an empty string argument. Chilkat will detect the HSM and will choose the most appropriate # underlying means for accessing and loading the default certificate + key from the HSM. # The underlying means could be PKCS11, ScMinidriver, or MSCNG, depending on the HSM what it # supports. # For example: # If you know the smart card PIN, it's good to set it prior to loading from the smartcard/USB token. cert.put_SmartCardPin("12345678") # To let Chilkat discover what smartcard or token is connected, pass an empty string to LoadFromSmartcard. # When testing in this way, it's best to have only a single smartcard or token connected to the system. success = cert.LoadFromSmartcard("") if (success == False): print(cert.lastErrorText()) print("Certificate not loaded.") sys.exit() # If there are multiple certificates stored on the smartcard/token, then # you can be more specific. See these examples: # Load a Certificate from an HSM by Common Name # Load a Certificate from an HSM by Serial Number # It may be that you need to code at a lower level with a specific # supported interface, such as PKCS11. # See these examples: # Use PKCS11 to Find a Specific Certificate # Use PKCS11 to Find a Certificate with a Specified Key Usage # Once you have the desired certificate, pass it to SetSslClientCert. # Set the certificate to be used for mutual TLS authentication # (i.e. sets the client-side certificate for two-way TLS authentication) success = http.SetSslClientCert(cert) if (success != True): print(http.lastErrorText()) sys.exit() # At this point, the HTTP object instance is setup with the client-side cert, and any SSL/TLS # connection will automatically use it if the server demands a client-side cert. |
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