iGCSE Encryption Computer Science

Front

Symmetric encryption

Back

A type of encryption where the same key is used for both encryption and decryption

Front

Example of a symmetric encryption algorithm.

Back

AES (Advanced Encryption Standard)

Front

Asymmetric encryption

Back

A method of encryption using a pair of keys (public and private) to encrypt and decrypt data.

Front

What is key management in the context of encryption?

Back

The management of encryption keys

Front

What are the advantages of symmetric encryption over asymmetric encryption?

Back

Faster and more efficient

Front

What are the advantages of asymmetric encryption over symmetric encryption?

Back

Better security with the use of two different keys

Front

Explain the process of key exchange in asymmetric encryption.

Back

Public and private keys are used to securely share a session key between two parties.

Front

What are the potential security risks associated with public key infrastructure?

Back

Key compromise, certificate authority compromise, and man-in-the-middle attacks

Front

How does encryption contribute to data security in computer systems?

Back

By scrambling data into an unreadable format, making it difficult for unauthorized users to access the information.

Front

What is the main advantage of using public key infrastructure for encryption?

Back

Enhanced security through secure key exchange