util

May 20, 2019

Changes in this version

+ func Keccak256(msg []byte) ([]byte, error)

+ func Sha256(msg []byte) []byte

May 14, 2019

Changes in this version

+ func BytesToUint64(v []byte) (uint64, error)

+ func CheckRequiredFlag(cmd *cobra.Command, names ...string)

+ func CopyFile(src, dst string) error

+ func Ecrecover(hash, v, r, s []byte) ([]byte, error)

+ func EcrecoverAddress(hash, v, r, s []byte) (common.Address, error)

+ func ExternalIP() (string, error)

+ func PrvKeyToCryptoKey(prv *ecdsa.PrivateKey) crypto.PrivKey

+ func SetEnvToViper(vp *viper.Viper, key string) []string

+ func TxHash(b []byte) []byte

+ func Uint64ToBytes(u uint64) []byte