How is cryptography used in security?

What is cryptography and how does it enhance security?

Cryptography is the practice of securing information by transforming it into an unreadable format. It enhances security by ensuring that only authorized parties can access or modify the data.

Can you explain some common cryptographic techniques used in security?

Sure! Common techniques include symmetric encryption, where the same key is used for both encryption and decryption, and asymmetric encryption, which uses a pair of keys (public and private) for secure communication.

How does cryptography protect data during transmission?

Cryptography protects data during transmission by encrypting it, making it unreadable to anyone who intercepts it. Only the intended recipient, who has the decryption key, can read the original message.

What role does cryptography play in online banking?

In online banking, cryptography secures transactions and protects sensitive information like account numbers and passwords, ensuring that data remains confidential and secure from fraud.