ICT encryption confidentiality – UGC NET Question

Encryption transforms plaintext into ciphertext using algorithms and secret keys, protecting information from unauthorised access during storage or transmission. It is fundamental to secure communication over networks. Only those with the correct key can restore the original data. Therefore, the security process described is encryption.

Option A:
Option A is correct because encryption is defined as the process of encoding data to maintain confidentiality and integrity.

Option B:
Option B, decryption, is the reverse process that converts ciphertext back to plaintext and does not match the direction described.

Option C:
Option C, compression, reduces file size but does not by itself secure data.

Option D:
Option D, routing, directs network packets to their destination and is unrelated to transforming data for secrecy.