Visual FoxPro

PKCS11 Generate Secret Key (such as AES)

See more PKCS11 Examples

Generates a symmetric secret key such as AES on the HSM.

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

Visual FoxPro

LOCAL lnSuccess
LOCAL loPkcs11
LOCAL lcPin
LOCAL lnUserType
LOCAL lcKeyType
LOCAL loJson
LOCAL lnKeyHandle

lnSuccess = 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.

loPkcs11 = CreateObject('Chilkat.Pkcs11')

* 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.
loPkcs11.SharedLibPath = "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll"

* Establish a logged-on session.
lcPin = "0000"
lnUserType = 1
lnSuccess = loPkcs11.QuickSession(lnUserType,lcPin)
IF (lnSuccess = 0) THEN
    ? loPkcs11.LastErrorText
    RELEASE loPkcs11
    CANCEL
ENDIF

* Let's generate a 256-bit AES key on the token, which will exist for the duration of this session.
* Symmetric keys, such as AES keys, are typically created (or imported) and used during a single session.

* Other possible values for keyType are "AES XTS", "Blowfish", "Twofish", "ChaCha20", and others. 
* In virtually all cases, you'll want to create an AES key.
lcKeyType = "AES"

* Specify attributes and abilities (how this key can be used) by providing a JSON template.
loJson = CreateObject('Chilkat.JsonObject')

* The key can be extracted or wrapped.
loJson.UpdateBool("extractable",1)

* Allow the key to be used for encryption, decryption, wrapping other keys, and unwrapping other keys.
loJson.UpdateBool("encrypt",1)
loJson.UpdateBool("decrypt",1)
loJson.UpdateBool("wrap",1)
loJson.UpdateBool("unwrap",1)

* Indicate a 256-bit AES key is to be generated by setting the value_len attribute equal to the key size in bytes.
* (32 bytes * 8 bits/byte = 256 bits)
loJson.UpdateInt("value_len",32)

lnKeyHandle = loPkcs11.GenSecretKey(lcKeyType,loJson)
IF (lnKeyHandle = 0) THEN
    ? loPkcs11.LastErrorText
    ? "Failed to generate an AES key."
ELSE
    ? "key handle = " + STR(lnKeyHandle)
    ? "Success."
ENDIF

loPkcs11.Logout()
loPkcs11.CloseSession()

RELEASE loPkcs11
RELEASE loJson