crypto

func AESDecrypt(key, ciphertext []byte) ([]byte, error)

func AESEncrypt(key, data []byte) ([]byte, error)

func DecryptData(ciphertext []byte, prvHex string) ([]byte, error)

func EncryptData(data []byte, pubHex string) ([]byte, error)

func GenerateRandomKey() ([]byte, error)

func PKCS5Padding(plaintext []byte, blockSize int) []byte

func PKCS5UnPadding(origData []byte) []byte

func SignatureMessage(data []byte, prvHex string) ([]byte, error)

func VerifySignature(data []byte, pubHex string, signature []byte) (bool, error)