The main difference between symmetric and asymmetric encryption is that:
A. Symmetric encryption uses the same key for encryption and decryption, while asymmetric encryption uses one key to encrypt and one to decrypt.
B. In symmetric encryption the encryption key must be of even number length so that it can be split in two, where one part is used for encryption and the other is used for decryption
C. Asymmetric encryption uses the same key for encryption and decryption, while symmetric encryption uses one key to encrypt and one to decrypt.
D. In asymmetric encryption the same key is given to one user in a hashed format and used for encryption, and to another used in plain text and used for decryption
Answer: A. Symmetric encryption uses the same key for encryption and decryption, while asymmetric encryption uses one key to encrypt and one to decrypt.
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