E 3 : A Framework for Compiling C++ Programs with Encrypted Operands [article]

Eduardo Chielle, Oleg Mazonka, Nektarios Georgios Tsoutsos, Michail Maniatakos
2018 IACR Cryptology ePrint Archive  
In this technical report we describe E3 (Encrypt-Everything-Everywhere), a framework which enables execution of standard C++ code with homomorphically encrypted variables. The framework automatically generates protected types so the programmer can remain oblivious to the underlying encryption scheme. C++ protected classes redefine operators according to the encryption scheme effectively making the introduction of a new API unnecessary. At its current version, E3 supports a variety of
more » ... encryption libraries, batching, mixing different encryption schemes in the same program, as well as the ability to combine modular computation and bit-level computation. I. INTRODUCTION In this document, we describe the E3 (Encrypt-Everything-Everywhere) framework for deploying private computation in C++ programs. Our framework combines the properties of both bit-level arithmetic and modular arithmetic within the same algorithm. The framework provides novel protected types using standard C++ without introducing a new library API. E3 is developed in C++, is open source [2], and works in Windows and Linux OSes. Unique features of E3: 1) Enables secure general-purpose computation using protected types equivalent to standard C++ integral types. The protected types, and consequently the code using them, do not depend on the underlying encryption scheme, which makes the data encryption independent of the program. 2) Allows using different FHE schemes in the same program as well as the same FHE scheme with different keys.
dblp:journals/iacr/ChielleMTM18 fatcat:mcobdsgtfjgcthihcvdl64rhiq