Comparison of White Box, Black Box and Gray Box Cryptography
International Journal of Innovations in Engineering and Technology · 2017
This paper is focused on a study of security issues related to an execution of cryptographic algorithms in an untrusted environment.It is therefore clear that algorithms built for both Black and Gray box models are impractical in the face of operating on non-trusted hosts.Understandably, hackers will not try to break the cipher by only using the means available in Black and Gray box scenarios, instead they will observe the execution when the unprotected key is used -directly stealing it.The word cryptology is derived from the Greek words krypt´os, meaning 'hidden', and logos, meaning 'word'.Strictly speaking, it is the science that studies how to hide confidential information.Cryptology comprises of two complementary fields.Cryptography is the study and practice of hiding information, while cryptanalysis is the study of methods to obtain knowledge from hidden information.