Information, Computer and Network Security Terms Glossary and Dictionary

MDC: Modification Detection Code

Modification Detection Code (MDC) is synonym for manipulation detection code that is a bit string, in cryptosystems, that is a function of data to which it is attached for the purpose of manipulation detection. The resulting message (data plus MDC) may then be encrypted to achieve secrecy or data authentication. The function used to generate the MDC must be public.

Related Terms

MDC: Modification Detection Code