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Bridge between TensorFlow and Google's Private Join and Compute library

License: Apache License 2.0

Python 44.18% C++ 36.31% Shell 18.63% Makefile 0.87%
machine-learning cryptography tensorflow secure-computation homomorphic-encryption private-set-intersection private-intersection-sum

tf-pjc's Issues

Allow multiple protocols runs at the same time

Currently not possible since only one object is stored in the resource manager and there is no run identification flow happening between the ops (right now they are only control dependencies, and they would need to be eg variant tensors with eg port information).

Integration with TFE

General idea:

  • keep TF PJC to somewhat low-level operations
  • implement high-level functionality in TFE

TODOs:

  • registration mechanism in TFE
  • plugin-loading mechanism in TFE
  • link between TFE Player and TF PJC

Improve robustness

More effort could be put into robustness, including:

  • better error handling
  • time-outs
  • proper shutdown
  • ??

Build Problem

Hello,
I am trying to install the tf-pjc package on Linux ubuntu, but it fails. I run the following:

pip install -e .
python setup.py install

Then I couldn't import the library because I got the error

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/gamal/tf-pjc/tf_pjc/__init__.py", line 1, in <module>
    from tf_pjc.python.protocol import PrivateIntersectionSum
  File "/home/gamal/tf-pjc/tf_pjc/python/protocol.py", line 3, in <module>
    from tf_pjc.python.ops import pjc_run_client
  File "/home/gamal/tf-pjc/tf_pjc/python/ops.py", line 8, in <module>
    pjc_ops = load_library.load_op_library(op_lib_file)
  File "/home/gamal/anaconda3/envs/tf-pjc/lib/python3.7/site-packages/tensorflow_core/python/framework/load_library.py", line 61, in load_op_library
    lib_handle = py_tf.TF_LoadLibrary(library_filename)
tensorflow.python.framework.errors_impl.NotFoundError: /home/gamal/tf-pjc/tf_pjc/python/_pjc_ops.so: cannot open shared object file: No such file or directory

I tried to build the tool using the command

make build

I got the following error:

ERROR: /home/gamal/.cache/bazel/_bazel_gamal/4ffb84453c7e240a9ea24733ac1549ff/external/com_google_protobuf/protobuf.bzl:130:29: Traceback (most recent call last):
	File "/home/gamal/.cache/bazel/_bazel_gamal/4ffb84453c7e240a9ea24733ac1549ff/external/com_google_protobuf/protobuf.bzl", line 125
		rule(<3 more arguments>)
	File "/home/gamal/.cache/bazel/_bazel_gamal/4ffb84453c7e240a9ea24733ac1549ff/external/com_google_protobuf/protobuf.bzl", line 130, in rule
		attr.label(cfg = "host", <3 more arguments>)
'single_file' is no longer supported. use allow_single_file instead. You can use --incompatible_disable_deprecated_attr_params=false to temporarily disable this check.
ERROR: /home/gamal/.cache/bazel/_bazel_gamal/4ffb84453c7e240a9ea24733ac1549ff/external/com_github_google_private_join_and_compute/util/BUILD:37:11: error loading package '@com_google_protobuf//': Extension file 'protobuf.bzl' has errors and referenced by '@com_github_google_private_join_and_compute//util:status_includes'
ERROR: Analysis of target '//tf_pjc:pjc_ops_py' failed; build aborted: Analysis failed
INFO: Elapsed time: 82.443s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (33 packages loaded, 127 targets configured)
Makefile:12: recipe for target 'build' failed
make: *** [build] Error 1

Reuse keys across runs

New keys are currently being generated whenever a client is instantiated (PrivateIntersectionSumProtocolClientImpl::PrivateIntersectionSumProtocolClientImpl), taking a significant amount of time. Update underlying library to allow reuse of (especially Paillier) keys.

Less copying

  • allow eg an iterator to be passed from the kernel to the conversion to BigInts in PJC

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