Imports github.com/golang/protobuf/proto github.com/pkg/errors gopkg.in/alecthomas/kingpin.v2 Standard library imports crypto/ecdsa crypto/x509 deepchain/common/tools/idemixgen/idemixca deepchain/common/tools/idemixgen/metadata deepchain/idemix deepchain/msp encoding/pem fmt io/ioutil os path/filepath