Imports github.com/tjfoc/gmsm/sm2 github.com/tjfoc/gmsm/sm3 github.com/tjfoc/gmsm/sm4 gopkg.in/fatih/set.v0 Standard library imports bufio bytes crypto/aes crypto/cipher crypto/ecdsa crypto/hmac crypto/rand crypto/sha256 crypto/x509/pkix encoding/base64 encoding/hex encoding/json errors fmt io io/ioutil log math/big math/rand net os reflect strings