Editing Secrecy (section)

== Computing ==
[[File:Das_Geheimnis_-_Le_secret.jpg|thumb|''Das Geheimnis'' (The Secret'') (Le secret)'', [[Felix Nussbaum]]]]
{{See also|Full disclosure (computer security)|Kerckhoffs' principle|security through obscurity}}
Preservation of secrets is one of the goals of [[information security]]. Techniques used include [[physical security]] and [[cryptography]]. The latter depends on the secrecy of [https://www.cloudflare.com/learning/ssl/what-is-a-cryptographic-key/ cryptographic keys]. Many believe that security technology can be more effective if it itself is not kept secret.<ref>{{Cite book|url=https://www.nap.edu/read/1581/chapter/4|title=Read "Computers at Risk: Safe Computing in the Information Age" at NAP.edu|year=1991|doi=10.17226/1581|isbn=978-0-309-04388-5|language=en}}</ref>

[https://cs.uwaterloo.ca/~dberry/COURSES/software.engr/lectures.pdf/inf_hiding.pdf Information hiding] is a design principle in much [[software engineering]]. It is considered easier to verify software reliability if one can be sure that different parts of the program can only access (and therefore depend on) a known limited amount of information.{{Citation needed|date=December 2008}}