A CTR-based authenticated encryption approach is the most efficient mode of operation for high-speed packet networks.

Question

Quizplus · Accepted Answer

CTR (Counter) mode of operation in authenticated encryption is highly efficient for high-speed packet networks as it allows parallel processing of packets and provides low latency. CTR mode generates a stream of key-dependent pseudorandom numbers and XOR them with plaintext, thereby turning it into ciphertext. The same keystream is also used to generate authentication tags for each packet, providing both confidentiality and authenticity.

A CTR-Based Authenticated Encryption Approach Is the Most Efficient Mode