/introspection-oblivious-hashing

Primary LanguageLLVM

Oblivious hashing

To build the tool:

mkdir build
cd build
cmake ../
make

Running first pass:

clang++-3.9 -std=c++0x source.cpp -c -emit-llvm
opt-3.9 -load /usr/local/lib/libInputDependency.so -load  $BUILD/lib/liboblivious-hashing.so source.bc -oh-insert -num-hash 1 -o out.bc
llvm-link-3.9 out.bc $HASHES/hashes/hash.bc -o out.bc
llvm-link-3.9 out.bc $ASSERTIONS/asserts.bc -o out.bc

To precompute hashes:

lli-3.9 out.bc [protected program input arguments]

Run second pass:

opt-3.9 -load /usr/local/lib/libInputDependency.so -load $BUILD/lib/liboblivious-hashing.so out.bc -insert-asserts -o protected.bc
clang++-3.9 -rdynamic -std=c++0x protected.bc -o protected