Temp file that exists only in RAM?

Question

I\'m trying to write an encrpytion using the OTP method. In keeping with the security theories I need the plain text documents to be stored only in memory and never ever wri

Answer 1

Using one of std::stringstream or fmemopen will get you file-like access to blocks of memory. If (for security) you want to avoid it being swapped out, use mlock which is probably easiest to use with fmemopen's buffer than std::stringstream. Combining mlock with std::stringstream would probably need to be done via a custom allocator (used as a template parameter).