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What does CMAC stand for?
What does CMAC mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: CMAC.
Term | Definition | Rating |
---|---|---|
CMAC | California Medical Assistance Commission | |
CMAC | Cambodia Mine Action Center | |
CMAC | Cambodia Mine Action Centre | |
CMAC | Cambodian Mine Action Center | |
CMAC | Campus Ministry Advisory Committee | |
CMAC | Canadian Marine Advisory Council | |
CMAC | Capital Markets Access Company | |
CMAC | Capital Markets Advisory Committee | |
CMAC | Captial Military Assistance Command | |
CMAC | Carnegie Mellon Admission Council | |
CMAC | Case Management Administrator Certification | |
CMAC | Catholic Marriage Advisory Council Business » Advisory -- and more... | |
CMAC | Center for Maritime Archaeology and Conservation | |
CMAC | Central Management of Army Commissaries | |
CMAC | Central Michigan Athletic Conference Sports » Athletics -- and more... | |
CMAC | Central Missouri Athletics Circuit | |
CMAC | Centralized Maintenance and Administration Center | |
CMAC | Centre for Mathematical Analysis and Computation | |
CMAC | Cerebellar Model Arithmetic Computer | |
CMAC | Cerebellar Model Articulation Controller | |
CMAC | Certified Marketing Automation Consultant | |
CMAC | Chaining Message Authentication Code | |
CMAC | CHAMPUS maximum allowable charge | |
CMAC | Chassis Mounted Charge Air Cooling | |
CMAC | Chemical and Molecular Analysis Centre |
What does CMAC mean?
- cmac
- One-key MAC (OMAC) is a message authentication code constructed from a block cipher much like the CBC-MAC algorithm. Officially there are two OMAC algorithms (OMAC1 and OMAC2) which are both essentially the same except for a small tweak. OMAC1 is equivalent to CMAC, which became an NIST recommendation in May 2005. It is free for all uses: it is not covered by any patents. In cryptography, CMAC is a block cipher-based message authentication code algorithm. It may be used to provide assurance of the authenticity and, hence, the integrity of data. This mode of operation fixes security deficiencies of CBC-MAC (CBC-MAC is secure only for fixed-length messages).The core of the CMAC algorithm is a variation of CBC-MAC that Black and Rogaway proposed and analyzed under the name XCBC and submitted to NIST. The XCBC algorithm efficiently addresses the security deficiencies of CBC-MAC, but requires three keys. Iwata and Kurosawa proposed an improvement of XCBC and named the resulting algorithm One-Key CBC-MAC (OMAC) in their papers. They later submitted OMAC1, a refinement of OMAC, and additional security analysis. The OMAC algorithm reduces the amount of key material required for XCBC. CMAC is equivalent to OMAC1. To generate an ℓ-bit CMAC tag (t) of a message (m) using a b-bit block cipher (E) and a secret key (k), one first generates two b-bit sub-keys (k1 and k2) using the following algorithm (this is equivalent to multiplication by x and x2 in a finite field GF(2b)).
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"CMAC." Abbreviations.com. STANDS4 LLC, 2024. Web. 22 Sep. 2024. <https://www.abbreviations.com/CMAC>.
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