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Additional padding may be added to toe Encapsulating Security Protocol (ESP) b trailer to provide which of the following?
Correct Answer: B
ESP can provide partial traffic flow confidentiality by padding the payload to hide the actual length of the data. Padding can also be used to align the payload with the encryption algorithm's block size. Padding is not used for access control, protection against replay attack, or data origin authentication. References: 1, p. 1009; 2, p. 29