sm4

Documentation

Index

• Constants
• func DecryptBlock(key Sm4Key, dst, src []byte)
• func EncryptBlock(key Sm4Key, dst, src []byte)
• func NewCipher(key []byte) (cipher.Block, error)
• func SM4GCM(key []byte, IV, in, A []byte, mode bool) ([]byte, []byte, error)
• type KeySizeError
  • func (k KeySizeError) Error() string
• type Sm4Cipher
  • func (c *Sm4Cipher) BlockSize() int
  • func (c *Sm4Cipher) Decrypt(dst, src []byte)
  • func (c *Sm4Cipher) Encrypt(dst, src []byte)
• type Sm4Key

Constants

const BlockSize = 16

Functions

func DecryptBlock

func DecryptBlock(key Sm4Key, dst, src []byte)

*

*@description:this function use to decrypt 128 bits data,and the decrypted data will be return in the param output
*@param key sm4密钥
*@param src 128bits crypto text
*@param dst 128bits plain text
*@return void

func EncryptBlock

func EncryptBlock(key Sm4Key, dst, src []byte)

*

*@description:this function use to encrypt 128 bits data,and the encrypted data will be return in the param output
*@param key sm4密钥
*@param src 128bits plain text
*@param dst 128bits crypto text
*@return void

func NewCipher

func NewCipher(key []byte) (cipher.Block, error)

NewCipher creates and returns a new cipher.Block.

func SM4GCM

func SM4GCM(key []byte, IV, in, A []byte, mode bool) ([]byte, []byte, error)

SM4GCM SM4 GCM 加解密模式 key: 对称加密密钥 IV: IV向量 in: A: 附加的可鉴别数据(ADD) mode: true - 加密; false - 解密验证 return: 密文C, 鉴别标签T, 错误

Types

type KeySizeError

type KeySizeError int

func (KeySizeError) Error

func (k KeySizeError) Error() string

判断错误

type Sm4Cipher

type Sm4Cipher struct {
	// contains filtered or unexported fields
}

Sm4Cipher is an instance of SM4 encryption.

func (*Sm4Cipher) BlockSize

func (c *Sm4Cipher) BlockSize() int

func (*Sm4Cipher) Decrypt

func (c *Sm4Cipher) Decrypt(dst, src []byte)

*

*@description:SM4解密函数
*@param src 密文数据
*@param dst 明文数据
*@return void

func (*Sm4Cipher) Encrypt

func (c *Sm4Cipher) Encrypt(dst, src []byte)

*

*@description:SM4加密函数
*@param src 明文数据
*@param dst 密文数据
*@return void

type Sm4Key

type Sm4Key []byte