NETWORK SECURITY FINAL EXAM PART 2

Cryptography has been used for coding messages for more than a thousand years and continues to be applied in modern technologies like bank cards and computer passwords.

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Public-key encryption involves encrypting data with a single key that is publicly available and can be used by anyone to both encrypt and decrypt messages.

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Symmetric key encryption is also known as private key cryptography and is typically faster but less secure compared to other methods.

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Asymmetric key encryption is sometimes called public key cryptography and requires two different keys: one for encryption and one for decryption.

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One of the benefits of cryptography is ensuring data integrity through cryptographic hash functions.

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Non-repudiation in cryptography ensures that a sender cannot deny sending a message by using a cryptographic hash.

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Symmetric key encryption is more secure than asymmetric key encryption and does not require a safe way to share the key.

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Public-key encryption ensures that data encrypted with the public key can only be decrypted with the corresponding private key.

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Authentication in cryptography allows relying parties to trust the data asserted by users, ensuring the data is true by using cryptography as the source of truth.

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Asymmetric key encryption is simpler and faster than symmetric key encryption because it uses only one key for both encryption and decryption.

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