Classification Of Cryptography and Key

1.) by Algorithm
- Substitution
- Transposotion

2.) by Key
- Symmetric
- Asymmertric

3.) by Plain TExt Processing
- Block Cipher
- Streak Cipher


4.) by Algorithm Mode
- EBC : Electronic Code Book
- CBC : Cipher Block Chaining
- CFB : Cipher Feedback
- OFB : Output Feedback


1 - Key management :-
FIRST TYPE :
1 - Key Generation
2 - Key Exchange
3 - Key Storage
4 - Key Revocation

SECOND TYPE :
1 - Non Linera Key
2 - Transaction Key
3 - Verifying Key
4 - Using Key
5 - Updating Key
6 - Storing Key
7 - Dstroying Key

2 - Key Distribution :
1 - Public Announcement
2 - Public Available Directory
3 - Public key Authority
4 - Public Key Certificates