SSL and certificates exist to provide encryption and identification for secure communication between web servers and clients. OpenSSL is a cryptography library and toolkit that implements the SSL and TLS protocols, providing encryption through different ciphers and algorithms. It is widely used by over 60% of web servers to generate private keys, certificate signing requests, and perform encryption and decryption as well as manage certificates.

1. HTTP utility - OpenSSL
By
Mayank Timbal -160280116104
Karmishth Tandel -160280116102

2. What we will cover
• Why SSL and certificates exists
• Encryption
- Why encryption?
- How encryption works?
• Identification
- How your computer can decide who to trust?
• OpenSSL TOOL

3. What is SSL?
• Used to do encryption between webserver or browser and client.
• It was developed by Netscape.
• They span their project and become Mozilla Firefox.
• In 1999,Upgraded version of SSL(Secure Socket Layer) was developed
which is TLS(transport Layer Security).

5. Why SSL exists?
Encryption
• Hiding what is sent
from one computer
to another
Identification
• Making sure the
computer you are
speaking to is the
one you trust

6. How SSL protocol works

7. What is OpenSSL?
• OpenSSL is a robust and full-featured toolkit for Transport Layer
security(TLS) and Secure Socket Layer(SSL) protocols.
• It is also a general purpose cryptography library.
• OpenSSL is written in C programming language and relies on different
cipher and algorithms to provide encryption.
• It has wide use in web server with over 60% webservers.

8. OpenSSL library’s tasks
• Generating RSA private keys
• Generating Certificate Signing Request(CSRs)
• Performing encryption/decryption as well as managing certificates

14. THANK YOU