Lesson 12-Encryption. Overview. Understand basic encryption concepts. Understand private key encryption. Understand public key encryption. Understand digital signatures. Understand key management. Understand trust in the system. Understand Basic Encryption Concepts.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Security Services with encryption:
Encryption terms (continued):
Encryption systems can be attacked in three ways:
Private key encryption:
Private key algorithm
DES Block Diagram
There are four modes of operation for DES:
Triple DES functional Diagram
There are several other private key algorithms available in various security systems. Among them are the following:
Private key algorithms (continued):
Public key encryption
Functioning of Diffe-Hellman algorithm:
Functioning of Diffe-Hellman algorithm (continued):
The basic algorithm for confidentiality is very simple:
The difficulty in calculating d given e and n provides the security.
To generate an RSA key pair, follow these steps:
Digital Signature operation