Which of these statements about symmetric key encryption is true? the file is encrypted with a private key and can be decrypted with a public key. the key can be made publicly available. symmetric key encryption is used for ssl. the same key is used for encryption as well as decryption.

The same key is used for encryption as well as decryption.

Explanation:

In symmetric encryption, the same key is used for encryption and decryption. The secret key that is used must be sent over a secure channel to the intended recipient.In the symmetric algorithm, data is converted to a form that can only be decrypted by someone who has the secret key. Symmetric encryption is faster and more efficient as compared to asymmetric encryption. An example where symmetric cryptography is used is in payment application where card transactions are involved and, personal Identification Information needs to be protected.

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