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#33 Message Authentication & Authentication Functions in Cryptography |CNS|

Understanding Cryptography and Network Security Cryptography ensures secure communication by converting plaintext into ciphertext using keys, algorithms, and data structures. It plays a crucial role in protecting commercial data for organizations like ABC. Authentication functions generate authenticators to verify the integrity of messages.

Encryption Basics Simplified Encryption transforms readable text (plaintext) into an unreadable format (ciphertext), ensuring confidentiality during transmission. This process relies on cryptographic keys and algorithms to maintain security standards effectively.

Hash Functions as Alternatives in Encryption In certain cases, hash functions replace traditional encryption methods by generating unique outputs without requiring a key. These are particularly useful when authentication is prioritized over secrecy or where lightweight solutions are needed for efficiency.