In computing, entropy is the randomness collected by an operating system or application for use in cryptography or other uses that require random data. This randomness is often collected from hardware sources, either pre-existing ones such as mouse movements or specially provided randomness ...

learn more… | top users | synonyms

0
votes
2answers
70 views

How much stronger does a paragraph/sentence based password becomes with random characters added?

I was reading some questions on here regarding the correct horse battery staple method, and the conclusion was that, assuming any words in the list of most common English words, every word adds about ...
0
votes
1answer
27 views

A simple question about entropy and random data

Let's say I roll a 6-sided die 100 times and record the results into a 100 character string, for example: //this is obviously an example (and very unlikely) outcome ...
0
votes
0answers
16 views

What is the difference between Shannon entropy and saying that tossing a 6-sided die 100 times has more than 256-bit entropy? [migrated]

I'm confused. I thought that tossing a 6-sided die 100 times had a greater than 256-bit entropy because 6^99 < 2^256 < 6^100. (A similar concept appeared in this XKCD comic, where choosing four ...
-1
votes
1answer
150 views

physical access proof smart card for disk encryption [closed]

Current full disk encryption on mobile devices rely on low entropy passwords like PIN numbers or pattern locks. Being able to use a smartcard with such mobile devices is a tempting idea. I know that ...
-5
votes
7answers
1k views

Are passwords made up from concatenating a few foreign words better than shorter random characters? [duplicate]

Does it make sense to insert a foreign word into a paraphrase to mitigate against brute force? For example: "pussiMeansCatInEskimo" "caballoMeansHorse" "CatIsGatto" "SalopeMeansBitch" ...