(alt.: trapdoor) 1. Syn. {back door} -- a {Bad Thing}. 2. [techspeak] A trap-door function is one which is easy to compute but very difficult to compute the inverse of. Such functions are {Good Thing}s with important applications in cryptography, specifically in the construction of public-key cryptosystems.
[glossary]
[Reference(s) to this entry by made by: {back door}{patch}]