This document contains figures and descriptions about the upper layers of the OSI model including the session layer, presentation layer, and application layer. It discusses session layer communication and synchronization, presentation layer functions like translation and encryption/decryption methods, and application layer protocols for messaging like MHS and virtual terminal access.

1. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Chapter 23
Upper
OSI
Layers

2. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-1
Session Layer Dialog

3. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-2
Session-to-Transport Layer Communication

4. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-3
Synchronization Points

5. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-4
SPDU

6. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-5
Presentation Layer Functions

7. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-6
Direct and Indirect Methods of Translation

8. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-7
Concept of Encryption and Decryption

9. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-8
Encryption/Decryption Methods

10. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-9
Monoalphabetic Substitution

11. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-10
Polyalphabetic Substitution

12. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-11
Transpositional Encryption

13. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-12
Encoding/Decoding

14. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-13
Permutation

15. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-14
Substitution

16. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-15
Product

17. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-16
Exclusive OR

18. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-17
Rotation

19. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-18
DES

20. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-19
Subkey Generation in DES

21. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-20
One of the 16
Steps in DES

22. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-21
Public Key Encryption

23. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-22
RSA

24. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-23
RSA Encryption and Decryption

25. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-24
Security of RSA

26. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-25
Signature Authentication

27. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-26
Data Compression Methods

28. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-27
Run-Length Encoding

29. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-28
MHS

30. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-29
Message Format in MHS

31. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-30
Virtual File Storage

32. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-31
Local Access

33. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-32
Remote Access

34. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 23-33
Virtual Terminal