olemus
ISO 7498, 9798, ISO/IEC 11770, 13888, 18014 jt:
kinnituse otsimine sellele, et andmete väidetav allikas on nende tegelik allikas
= corroboration that the source of data received is as claimed

ülevaateid
https://en.wikipedia.org/wiki/Message_authentication
http://www.iet.unipi.it/g.dini/Teaching/snr/materiale-didattico/Basic-cryptography-identification.pdf
https://www.cc.gatech.edu/~aboldyre/teaching/Fall05cs6260/m-mac.pdf

näiteid
https://www.annessi.net/data/2018-5G_preprint.pdf

vt ka
- sõnumiautentimiskood