The Open Source hcrypt Project: shapeCPU is a simulated machine which is capable of executing arbitrary programs in a secure fashion using libScarab to protect both data and program code using homomorphic cryptography. Thus even the entity in control of shapeCPU can not gain any information about the data or the program running on shape. libScarab is an implementation of a homomorphic encryption scheme. Using libScarab it is possible to execute operations on encrypted values. The library is written in C.

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