This is a library extension for Obliv-C, a language for collaborative cryptographic computation on private data. Typically Obliv-C does not allow array access such that the element location depends on private data. This library provides data structures for overcoming this limitation, at least for honest-but-curious protocols.

Status: The library itself is ready for use, but the test/benchmarking code is still being posted as we clean it up. In the meantime, we are happy to help out if you contact us at [email protected].

First, install Obliv-C if you have not done so already. Follow the instructions from this repository. After that, perform the following actions:

1. Add this to your .bashrc, since it is used by the Makefile. This should allow you to invoke the compiler as $OBLIVC_PATH/bin/oblivcc.

export OBLIVC_PATH=/path/to/oblivc

2. Clone the repository: git clone https://github.com/samee/sqrtOram.git
3. Perform make

This will build a build/liboram.a file in the repository. Now you can use it in any project as follows:

OBLIVCC=$OBLIVC_PATH/bin/oblivcc
LIBORAM=path/to/liboram/repo
$OBLIVCC yourproject.oc -I $LIBORAM/oram -L $LIBORAM/build -loram

As always, questions always welcome at [email protected]