Transport Layer Security

Transport Layer Security (TLS)

Presented by : Chhatra Thapa

Presentation on :

Two protocols are dominant today for providing security at the transport layer

Secure Sockets Layer (SSL) protocol

Transport Layer Security (TLS) protocol

Definition:

Transport Layer Security (TLS) was designed to provide security at the transport layer.

TLS was derived from a security protocol called Secure Sockets Layer (SSL).

Location of SSL and TSL in the Internet mode

TLS layers : Four TLS protocol

1. Handshake protocol

Hash for Certificate Verify message in TLS

Hash for Finished message in TLS

2. Change Cipher Spec Protocol

3. Alert protocol

4. Record protocol