COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

CRYPTOGRAPHY AND ENCRYPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The fundamental problem in cryptography is:
A
Message secrecy
B
Key exchange
C
Lock exchange
D
Algorithm complexity
Explanation: 

Detailed explanation-1: -In cryptography key establishment (key exchange, key negotiation) is a process or protocol, whereby a shared secret becomes available to two parties, for subsequent cryptographic use, typically for encrypted communication. Establishment techniques can be key agreement or key transport schemes.

Detailed explanation-2: -In cryptography, a key is a string of characters used within an encryption algorithm for altering data so that it appears random. Like a physical key, it locks (encrypts) data so that only someone with the right key can unlock (decrypt) it.

Detailed explanation-3: -Cryptographic principles are the fundamental concepts and techniques that are used in the field of cryptography to secure communication and protect data. These principles include confidentiality, integrity, authentication, non-repudiation, and key management.

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