encrypt

func Base64ToString(str string) string

func Decrypt(key string, iv string, str string) (string, error)

func Encrypt(key string, iv string, str string) (string, error)

func GetRSAkey(bits int) error

func Md5(str string) string

func PKCS7Padding(origData []byte, blockSize int) []byte

func PKCS7upPadding(origData []byte) []byte

func PrivateRSADecrypt(str, key string) (string, error)

func PublicRSAEncrypt(str, key string) (string, error)

func StringToBase64(str string) string