Go

PKCS11 Import an Existing AES Key onto the HSM

See more PKCS11 Examples

Demonstrates how to import an existing AES symmetric encrytion key onto the smartcard/token. The imported AES key is a session object, and only exists for the duration of the PKCS11 session. (AES keys are typically used for wrapping/unwrapping RSA and EC keys.)

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

Go

    success := false

    // 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.

    pkcs11 := chilkat.NewPkcs11()

    // 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.
    pkcs11.SetSharedLibPath("C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll")

    // Establish a logged-on session.
    pin := "0000"
    userType := 1
    success = pkcs11.QuickSession(userType,pin)
    if success == false {
        fmt.Println(pkcs11.LastErrorText())
        pkcs11.DisposePkcs11()
        return
    }

    // Generate a 256-bit AES key.
    // (32 bytes is 256 bits)
    // Append 32 bytes of random data in the base64 encoding.
    sbAesKey := chilkat.NewStringBuilder()
    sbAesKey.AppendRandom(32,"base64")

    attrs := chilkat.NewJsonObject()
    // Specify the type of object, and the type of key.
    attrs.UpdateString("class","CKO_SECRET_KEY")
    attrs.UpdateString("key_type","CKK_AES")
    // Add an optional label if desired.
    attrs.UpdateString("label","My AES wrapping/unwrapping key")
    // Allow the key to be use for wrapping and unwrapping operations.
    attrs.UpdateBool("wrap",true)
    attrs.UpdateBool("unwrap",true)

    // Provide the AES key material.
    attrs.UpdateString("value",*sbAesKey.GetAsString())

    // Create the object (i.e. create the AES key with the given key material.)
    // Returns the PKCS11 object handle of the created AES session key.
    objHandle := pkcs11.CreatePkcs11Object(attrs)
    if objHandle == 0 {
        fmt.Println(pkcs11.LastErrorText())
        fmt.Println("Failed.")
    } else {
        fmt.Println("PKCS11 object handle = ", objHandle)
        fmt.Println("Successfully created a 256-bit AES session key.")
    }

    // Typically, you would do other things in the PKCS11 session that use the handle of AES key we just created.
    // ...
    // ...

    pkcs11.Logout()
    pkcs11.CloseSession()

    pkcs11.DisposePkcs11()
    sbAesKey.DisposeStringBuilder()
    attrs.DisposeJsonObject()