An algorithm [R2410] that is specified as doing nothing to transform plaintext data; i.e., a no-op. It originated because ESP always specifies the use of an encryption algorithm for confidentiality. The NULL encryption algorithm is a convenient way to represent the option of not applying encryption in ESP (or in any other context where a no-op is needed). (Compare: null.)
An algorithm [R2410] that is specified as doing nothing to transform plaintext data; i.e., a no-op. It originated because ESP always specifies the use of an encryption algorithm for confidentiality. The NULL encryption algorithm is a convenient way to represent the option of not applying encryption in ESP (or in any other context where a no-op is needed). (Compare: null.)