util

func BytesToUint64 ¶

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

func CheckRequiredFlag ¶

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

func CopyFile ¶

func CopyFile(src, dst string) error

func Ecrecover ¶

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

Ecrecover returns the uncompressed public key that created the given signature.

func EcrecoverAddress ¶

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

func ExternalIP ¶

func ExternalIP() (string, error)

https://stackoverflow.com/questions/23558425/how-do-i-get-the-local-ip-address-in-go TODO there must be a better way to get external IP

func Keccak256 ¶ added in v0.2.0

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

func PrvKeyToCryptoKey ¶

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

func SetEnvToViper ¶

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

func Sha256 ¶ added in v0.2.0

func Sha256(msg []byte) []byte

func TxHash ¶

func TxHash(b []byte) []byte

func Uint64ToBytes ¶

func Uint64ToBytes(u uint64) []byte