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RSA Security 4.3 manual The Six-StepSequence

Models: 4.3

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The Six-Step Sequence

The model for building a hardware-aware application with Crypto-C is similar to the six-step model described in Chapter 1 of the Crypto-C User’s Manual. The differences are as follows:

1.Create: At this point you may want to create the session chooser that will be used in Step 3.

2.Set

3.Init: In this step, you must pass a modified chooser, the session chooser, to your initialization function. (The session chooser must be created earlier, but is passed in at this point.)

4.Update

5.Final

6.Destroy: In this step, in addition to calling the Destroy function and freeing any allocated memory, you should free the session chooser you created in Step 3.

If you are modifying an existing application to use hardware, you may also need to call different AIs and/or AMs in place of the software info types and methods you are currently using.

4	R S A B S A F E C r y p t o - C I n t e l H a r d w a r e U s e r ’s G u i d e

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RSA Security 4.3 manual The Six-StepSequence

Contents

Cryptographic Components for C Crypto-CRSA BSAFE Intel Security Hardware User’s Guide001-19001-430-001-000 Copyright Notice1999 RSA SECURITY INC Contents Using Intel Hardware With Crypto-COverview ChapterCrypto-C Error Codes Intel Security Hardware Error CodesIndex Appendix A Appendix B Appendix CIntel Hardware Security Features OverviewRSA BSAFE Crypto-CInterface ChapterHow This Book Is Organized How This Book Is OrganizedAdditional Documentation Overview of a Crypto-CHardware Application Overview of a Crypto-CHardware ApplicationThe Six-StepSequence The Six-StepSequenceAlgorithm Methods Crypto-CAlgorithm MethodsUsing Intel Hardware With Crypto-C ChapterIntel Hardware Algorithm Methods Algorithm MethodsThe Session Chooser Creating the Session ChooserCreating the Software Chooser The Session ChooserCreating the Hardware Chooser Creating the Session ChooserThe Session Chooser if status = B CreateSessionChooserHardware Availability Hardware AvailabilityHardware Errors Hardware ErrorsA RSA EXTENDED ERROR errorCodeerrorMsg DefinitionsHardware Errors Chapter Using the Intel Random Number GeneratorRandom Numbers Using the Intel RNG The Intel Random Number GeneratorWhitening Hardware Results Unavailability of HardwarePseudo-RandomNumber Generators PRNGs Random NumbersGenerating Random Numbers Obtaining a Random Seed from HardwareStep 0 Create the Session Chooser Generating Random NumbersStep 1 Create an Algorithm Object Step 2 Set the Algorithm ObjectStep 3 Initialize the Random Object Generating Random NumbersStep 4 Update the Random Object Step 5 Generate Random BytesStep 6 Destroy All Objects Step 6a Destroy the Algorithm ObjectRetrieving Hardware Error Codes Generating Random Numbers in SoftwareStep 6b Free the Session Chooser Generating Random NumbersStep 1 Create an Algorithm Object Step 2 Set the Algorithm ObjectGenerating Random Numbers if status = B SetAlgorithmInfoGenerating Random Numbers Step 3 Initialize the Random AlgorithmStep 4 Seed the Random Object Step 5 Generate Random Numbers Step 6 Destroy all ObjectsGenerating Random Numbers breakCrypto-CError Codes Appendix APage Appendix B Intel Security Hardware Error CodesTable B-1 Intel Security Hardware Error Codes Page Redistributing the Intel Security Driver Appendix CRedistributing via a Silent Install setup -sRedistributing the Driver Redistributing the DriverFiles Installed Redistributing the DriverFile LocationRedistributing the Driver Redistributing the Driver via .inf FilesMicrosoft Windows NT Redistributing the Driver 4.Click Start Settings Control PanelMicrosoft Windows 4.Click Start Settings Control Panel Microsoft WindowsRedistributing the Driver 2.Log on to the target systemIndex