All the Following Statements About Symmetric Key Cryptography Are True

question 1

Multiple Choice

All the following statements about symmetric key cryptography are true except:

• A) in symmetric key cryptography, both the sender and the receiver use the same key to encrypt and decrypt a message.
• B) the Data Encryption Standard is a symmetric key encryption system.
• C) symmetric key cryptography is computationally slower.
• D) symmetric key cryptography is a key element in digital envelopes.

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