What Is Cryptography? Why Do We Need It?

1.	What Is Cryptography? Why Do We Need It?
Answer» Cryptography is to PROTECT private communication in the public world. For example, two entities wanting to communicate – Ajitab and Mulu – are SHOUTING their MESSAGES in a room full of PEOPLE. Everyone can hear what they are saying. The goal of cryptography is to protect this communication so that only Ajitab and Mulu can UNDERSTAND the content of the messages. Cryptography is to protect private communication in the public world. For example, two entities wanting to communicate – Ajitab and Mulu – are shouting their messages in a room full of people. Everyone can hear what they are saying. The goal of cryptography is to protect this communication so that only Ajitab and Mulu can understand the content of the messages.

Answer»

Cryptography is to PROTECT private communication in the public world. For example, two entities wanting to communicate – Ajitab and Mulu – are SHOUTING their MESSAGES in a room full of PEOPLE. Everyone can hear what they are saying. The goal of cryptography is to protect this communication so that only Ajitab and Mulu can UNDERSTAND the content of the messages.

Cryptography is to protect private communication in the public world. For example, two entities wanting to communicate – Ajitab and Mulu – are shouting their messages in a room full of people. Everyone can hear what they are saying. The goal of cryptography is to protect this communication so that only Ajitab and Mulu can understand the content of the messages.

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