Imports github.com/golang/protobuf/proto github.com/traceabilitychain/tacchain/common/crypto github.com/traceabilitychain/tacchain/common/crypto/secp256k1 github.com/traceabilitychain/tacchain/common/crypto/sha3 github.com/traceabilitychain/tacchain/protos/peer Standard library imports encoding/hex fmt math/big strings crypto/ecdsa crypto/elliptic crypto/sha256