Imports gitee.com/zhaochuninhefei/gmgo/sm2 gitee.com/zhaochuninhefei/gmgo/sm3 github.com/golang/protobuf/proto github.com/hyperledger/fabric-amcl/amcl github.com/hyperledger/fabric-amcl/amcl/FP256BN github.com/pkg/errors Standard library imports crypto/rand encoding/asn1 fmt log math math/big sort