Final answer:
Cryptography improves internet security by providing techniques such as encryption and digital signatures to protect data from unauthorized access or modification.
Step-by-step explanation:
Cryptography plays a crucial role in improving internet security by providing techniques to protect sensitive information and communication from unauthorized access or modification. It ensures the confidentiality, integrity, and authenticity of data exchanged over a network.
One way cryptography improves internet security is through encryption, where information is transformed into unreadable format using algorithms and encryption keys. This prevents hackers or eavesdroppers from intercepting and understanding the data.
Another way cryptography enhances internet security is through digital signatures. These are created using a combination of a private key and a mathematical algorithm. Digital signatures verify the authenticity of data, ensuring it has not been tampered with during transmission.