Drop in replacement for golang.org/x/crypto/bn256 backed by the fast C implementation by Michael Naehrig, Ruben Niederhagen, and Peter Schwabe described in https://www.cryptojedi.org/crypto/#dclxvi
go get -d github.com/asimshankar/bn256
make -C ${GOPATH}/src/github.com/asimshankar/bn256 install
# If the above fails (on non-AMD64 platforms for example,
# where the optimized assembly implementation cannot be used)
# then use the slower-than-assembly but faster-than-pure-Go
# portable-C implementation via:
USE_C=true make -C ${GOPATH}/src/github.com/asimshankar/bn256 clean install
The instructions above should work on ARM and other architectures as well. Alternatively, cross-compile from a more powerful laptop/desktop for the other architectures.
sudo apt-get install gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf
make -C ${GOPATH}/src/github.com/asimshankar/bn256 clean test-arm
# This will generate a file like bn256.test.arm which can be copied
# to and run on an arm device, like a RaspberryPi via:
bn256.test.arm --test.v --test.bench=.
Tests and benchmarks can be run on Android as well. It requires the
Android NDK
to be available on the host machine. Tests and benchmarks requires an
Android device be connected to the host and accessible via adb:
make -C ${GOPATH}/src/github.com/asimshankar/bn256 clean test-android benchmark-android
make -C ${GOPATH}/src/github.com/asimshankar/bn256 clean test-edison
# This will generate a file like bn256.test.edison which can be copied
# to and run on an Intel Edison via:
bn256.test.edison --test.v --test.bench=.