(11) "Hash
Message Authentication Code" from http://en.wikipedia.org/wiki/HMAC.
* M-ACTripleDES (
Message Authentication Code using TripleDES)
The sender breaks the confidential digital message into packets and tags each packet with a short string of digits known as a
message authentication code. The message packets can then be intermingled with fake packets bearing bogus authentication codes to create a plausible missive.
The first phase of a Federal Reserve effort to test emerging commercial
message authentication code products that meet national standards has just been completed.
(iv) a pair of
message authentication code (MAC) generation/verification algorithms (Mac, Ver), where Ver outputs a bit, with 1 meaning accept and 0 meaning reject.
AP-2: sensor [S.sub.n] generates [M.sub.2] = <[B.sub.k], [AID.sub.k], Tu, Ts, [S.sub.n]> and sends message <[M.sub.2], Q> to GW node; here [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is a
message authentication code.
After that, these parameters are indirectly transformed secretly into the
message authentication code (MAC) during an update session.
A similar application is to embed information for authentication of the contents, such as
message authentication code and digital signature, so that tampering against digital contents can be detected afterwards.
To evaluate security techniques, Soderlund [15] studied the impact of adding a
message authentication code on the lifetime of the WSN based on different symmetric and asymmetric approaches.