1 Scope
2 Definitions
3 Application
3.1 Protection
3.1.1 Protection Provided
3.1.2 Limitations
3.2 Operation
3.2.1 Processing
3.2.2 Authentication Arrangements
3.2.3 Authentication Options
3.2.4 Audit Journal
4 The Authentic Computation
4.1 General
4.2 Cryptographic Keys
4.3 The Authentication Algorithm
5 Message Authentication for Binary Data
5.1 General
5.2 Computation
5.3 "Failed" Message Authentication Code (MAC)
6 Message Authentication for Coded Character Sets
6.1 General
6.1.1 Fixed Message Element Formats
6.1.2 Implicit Field Delimiters
6.1.3 Explicit Field Delimiters
6.1.4 Use of Delimiters
6.1.5 Character Representation
6.1.6 Header and Trailer Information
6.2 Coded Characters: Entire Message: No Editing
6.3 Coded Characters: Extracted Message Elements: No
            Editing
6.3.1 Use
6.3.2 Extraction of Message Elements
6.4 Coded Characters: Entire Message: Editing
6.4.1 Use
6.4.2 Editing
6.5 Coded Characters: Extracted Message Elements: Editing
6.5.1 Use
6.5.2 Extraction of Message Elements
6.5.3 Editing
6.6 Coded Characters Message Authentication Code (MAC)
6.6.1 Placement
6.6.2 "Failed" Message Authentication Code
7 Key Management
APPENDIX A Duplication and Loss Protection
A.1 Purpose
A.2 Duplication Protections
A.3 Loss Protection
APPENDIX B Examples of Message Authentication for Coded
            Character Sets
B.1 Purpose
B.2 Example Message
B.3 Example Cryptographic Key
B.4 Entire Message: No Editing
B.5 Extracted Message Elements: No Editing
B.6 Entire Message: Editing
B.7 Extracted Message Elements: Editing
APPENDIX C Risks Associated with Communication Control
            Characters
C.1 Purpose
C.2 Insertion and Deletion of Characters in Authenticated
            Text
C.3 Insertion and Deletion of Characters in
            Unauthenticated Text
C.4 Presentation Device Inconsistencies
C.5 Alternative Processing Solutions