cn.tdchain.cipher.sm

类 Sm4Util

java.lang.Object

cn.tdchain.cipher.sm.Sm4Util

public class Sm4Util
extends Object

字段概要

字段

限定符和类型	字段和说明
static String	ALGORITHM_NAME
static String	ALGORITHM_NAME_CBC_PADDING
static String	ALGORITHM_NAME_ECB_PADDING
static int	DEFAULT_KEY_SIZE

构造器概要

构造器

构造器和说明
Sm4Util()

方法概要

限定符和类型	方法和说明
static byte[]	decrypt_Cbc_Padding(byte[] key, byte[] iv, byte[] cipherText)
static byte[]	decrypt_Ecb_Padding(byte[] key, byte[] cipherText)
static String	decryptECB(String data, String passwd)
static byte[]	encrypt_Cbc_Padding(byte[] key, byte[] iv, byte[] data)
static byte[]	encrypt_Ecb_Padding(byte[] key, byte[] data)
static String	encryptECB(String data, String passwd)
static byte[]	generateKey()
static byte[]	generateKey(int keySize)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

ALGORITHM_NAME

public static final String ALGORITHM_NAME

另请参阅:

常量字段值

ALGORITHM_NAME_ECB_PADDING

public static final String ALGORITHM_NAME_ECB_PADDING

另请参阅:

常量字段值

ALGORITHM_NAME_CBC_PADDING

public static final String ALGORITHM_NAME_CBC_PADDING

另请参阅:

常量字段值

DEFAULT_KEY_SIZE

public static final int DEFAULT_KEY_SIZE

另请参阅:

常量字段值

构造器详细资料

Sm4Util

public Sm4Util()

方法详细资料

generateKey

public static byte[] generateKey()
                          throws NoSuchAlgorithmException,
                                 NoSuchProviderException

抛出:

NoSuchAlgorithmException

NoSuchProviderException

generateKey

public static byte[] generateKey(int keySize)
                          throws NoSuchAlgorithmException,
                                 NoSuchProviderException

抛出:

NoSuchAlgorithmException

NoSuchProviderException

encrypt_Ecb_Padding

public static byte[] encrypt_Ecb_Padding(byte[] key,
                                         byte[] data)
                                  throws InvalidKeyException,
                                         NoSuchAlgorithmException,
                                         NoSuchProviderException,
                                         NoSuchPaddingException,
                                         IllegalBlockSizeException,
                                         BadPaddingException

抛出:

InvalidKeyException

NoSuchAlgorithmException

NoSuchProviderException

NoSuchPaddingException

IllegalBlockSizeException

BadPaddingException

decrypt_Ecb_Padding

public static byte[] decrypt_Ecb_Padding(byte[] key,
                                         byte[] cipherText)
                                  throws IllegalBlockSizeException,
                                         BadPaddingException,
                                         InvalidKeyException,
                                         NoSuchAlgorithmException,
                                         NoSuchProviderException,
                                         NoSuchPaddingException

抛出:

IllegalBlockSizeException

BadPaddingException

InvalidKeyException

NoSuchAlgorithmException

NoSuchProviderException

NoSuchPaddingException

encrypt_Cbc_Padding

public static byte[] encrypt_Cbc_Padding(byte[] key,
                                         byte[] iv,
                                         byte[] data)
                                  throws InvalidKeyException,
                                         NoSuchAlgorithmException,
                                         NoSuchProviderException,
                                         NoSuchPaddingException,
                                         IllegalBlockSizeException,
                                         BadPaddingException,
                                         InvalidAlgorithmParameterException

抛出:

InvalidKeyException

NoSuchAlgorithmException

NoSuchProviderException

NoSuchPaddingException

IllegalBlockSizeException

BadPaddingException

InvalidAlgorithmParameterException

decrypt_Cbc_Padding

public static byte[] decrypt_Cbc_Padding(byte[] key,
                                         byte[] iv,
                                         byte[] cipherText)
                                  throws IllegalBlockSizeException,
                                         BadPaddingException,
                                         InvalidKeyException,
                                         NoSuchAlgorithmException,
                                         NoSuchProviderException,
                                         NoSuchPaddingException,
                                         InvalidAlgorithmParameterException

抛出:

IllegalBlockSizeException

BadPaddingException

InvalidKeyException

NoSuchAlgorithmException

NoSuchProviderException

NoSuchPaddingException

InvalidAlgorithmParameterException

encryptECB

public static String encryptECB(String data,
                                String passwd)

参数:

data -

passwd -

返回:

String

decryptECB

public static String decryptECB(String data,
                                String passwd)

参数:

data -

passwd -

返回:

String