spacemeshos/go-bls

An experimental go-bls sigs lib based on herumi

Spacemesh go-bls lib POC

This is an experimental early POC. Be warned, dragons ahead...

Building

Native requirements: gcc, libgmp-dev libssl-dev

git clone https://github.com/spacemeshos/go-bls
cd go-bls
git submodule init
git submodule update
cd external/mcl
make test
make test_go
cd ../bls
make test
make test_go
cd ..
go build

Testing

go test ./tests/. -v

Running

cd examples
export DYLD_LIBRARY_PATH=$GOPATH/src/github.com/spacemeshos/go-bls/external/bls/lib
go run main.go

go-bls's Issues

Add submodules

Add these as git submodules
https://github.com/herumi/mcl.git
https://github.com/herumi/bls.git

Aggregated verification security review

We'd like to review the security of the aggregated signature creation and verification use case implemented in main.go::timeAggregation() - basically, one aggregated signature, n message hashes and n public keys required for verification instead of n signatures by each of the n public keys.

The verification logic is implemented here:
https://github.com/herumi/bls/blob/5fcee19422f96902a5fdf9f29db427dd6fe9f16b/src/bls_c_impl.hpp#L384

The signature aggregation logic is implemented here:
https://github.com/herumi/bls/blob/5fcee19422f96902a5fdf9f29db427dd6fe9f16b/src/bls_c_impl.hpp#L339

@zalmen @iddo333 @gavraz

Add golden tests

Add sanity tests using bls golden test vectors

go build error

github.com/go-bls

/usr/bin/ld: warning: libmcl.so, needed by ./external/bls/lib/libbls384.so, not found (try using -rpath or -rpath-link)
./external/bls/lib/libbls384.so：对‘mcl::fp::Op::init(__gmp_expr<__mpz_struct [1], __mpz_struct [1]> const&, unsigned long, int, mcl::fp::Mode, unsigned long)’未定义的引用
./external/bls/lib/libbls384.so：对‘mcl::fp::Op::destroyFpGenerator(mcl::fp::FpGenerator*)’未定义的引用
./external/bls/lib/libbls384.so：对‘mcl::fp::copyAndMask(unsigned long*, void const*, unsigned long, mcl::fp::Op const&, mcl::fp::MaskMode)’未定义的引用
collect2: error: ld returned 1 exit status