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If NULL encryption is chosen in ESP of IPsec, then which of these encryptions are applied?
RSA
DES
None of these
AES
NULL encryption means that no encryption will be used. In modern cryptology, null encryption (or selecting null cipher or NONE cipher) is choosing not to use encryption in a system where various encryption options are offered, such as for testing/debugging, or authentication-only communication. Thus the text is the same before and after encryption.
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