Which of the following is NOT a function performed by the record protocol of TLS?
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A. B. C. D.B.
The record protocol of TLS performs the authentication and encryption of data packets, and in some cases compression as well.
It does not perform any acceleration functions.
The record protocol is a core component of the Transport Layer Security (TLS) protocol. Its primary function is to take application data, split it into manageable blocks, add a header, apply encryption and/or compression, and send the resulting records to the peer. The peer then decrypts and decompresses the records, and forwards the application data to the receiving application.
Out of the given options, acceleration is not a function performed by the record protocol of TLS.
Here's a brief explanation of the other functions:
A. Encryption: The record protocol provides confidentiality by encrypting the data in the records. The encryption is applied using a symmetric encryption algorithm, which means that both the sender and the receiver use the same secret key to encrypt and decrypt the data.
C. Authentication: The record protocol provides authentication by adding a Message Authentication Code (MAC) to each record. The MAC is calculated using a shared secret key and a cryptographic hash function, and is used to verify the integrity of the data.
D. Compression: The record protocol provides compression by applying a lossless compression algorithm to the application data before encrypting it. Compression can improve the performance of the protocol by reducing the amount of data that needs to be transmitted over the network.
In summary, the record protocol of TLS provides encryption, authentication, and compression functions, but does not perform acceleration.