( < extended CBC-MAC, "laiendatud CBC-MAC")

olemus
algoritmi CBC-MAC kolmevõtmeline variant, mis muudab sõnumiautentimiskoodi turvaliseks ka muutuva pikkusega sõnumite puhul
= a three-key version of the CBC-MAC algorithm that makes the message authentication code secure for messages of variable length also

ülevaateid
https://www.rfc-editor.org/pdfrfc/rfc4494.txt.pdf

standardid
https://tools.ietf.org/html/rfc3566

turvalisus
https://eprint.iacr.org/2008/542.pdf
https://www.quora.com/Why-aren-t-there-TLS-cipher-suites-using-AES-XCBC-MAC-for-an-authentication

vt ka
- CBC-MAC
- OMAC