Author: venus, Posted: Fri Aug 20, 2010 4:22 pm Post subject: What is MC encryption. ---- What is MC encryption.
Author: Fire Ant, Location: LondonPosted: Fri Aug 20, 2010 5:01 pm Post subject: ---- Venus,
As someone who works in the Cryptography space, I have to say I have never heard of it. Can you give us some any more information? Such as where you heard this term? Any context would help.
Thanks,
Fire Ant
Author: venus, Posted: Fri Aug 20, 2010 5:25 pm Post subject: ---- in this post.
Author: Fire Ant, Location: LondonPosted: Sat Aug 21, 2010 11:04 am Post subject: ---- Venus,
Again, can I ask why you want to know? You have pointed me at two links with no context what so ever.
Again, if you read the text MC = Main Case
Quote:
The nibble value is fixed by the interval [0, 15], so that we conclude that we have 16 levels of a priority, each one represents one main case (MC) out of 16.
MC doesn't mean any specific is both your cases.
Fire Ant
Author: venus, Posted: Sun Aug 22, 2010 1:30 pm Post subject: ---- you mean i should wrote something like MC 9 or MC 14 ???
is it really an algorithm??
Author: capi, Location: PortugalPosted: Sun Aug 22, 2010 3:00 pm Post subject: ---- The "MC" mentioned in the paper you linked is not an encryption algorithm. As Fire Ant said, it is simply a name for a specific value used in the calculation of the broader algorithm they're describing.
In this paper, MC stands for Main Case; it is just a name to describe the 16 possible values which can exist in a nibble (half a byte). They describe a formula through which they calculate the Main Case, from the original byte color. The MC is simply an auxiliary result of an auxiliary function used within a more complex steganography algorithm. It's just a name for a value; they could have called it Banana Airplane or Pink Elephant.
As for the MC' and MC₁, MC₂ and so on... this is simply standard mathematical notation. The subscript numbers indicate an index or different instances of the variable for different cases; if you read page 225, they define MC and the notation they use with it. As for the single quote, again that's standard notation to mean an alternative value of a variable (e.g. where h is my height and h' is yours).