com.peersafe.base.crypto.sm

类 SM4Util

java.lang.Object

com.peersafe.base.crypto.sm.GMBaseUtil

com.peersafe.base.crypto.sm.SM4Util

public class SM4Util
extends GMBaseUtil

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_NOPADDING
static String	ALGORITHM_NAME_CBC_PADDING
static String	ALGORITHM_NAME_ECB_NOPADDING
static String	ALGORITHM_NAME_ECB_PADDING
static int	DEFAULT_KEY_SIZE SM4算法目前只支持128位（即密钥16字节）

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_NoPadding(byte[] key, byte[] iv, byte[] cipherText)
static byte[]	decrypt_CBC_Padding(byte[] key, byte[] iv, byte[] cipherText)
static byte[]	decrypt_ECB_NoPadding(byte[] key, byte[] cipherText)
static byte[]	decrypt_ECB_Padding(byte[] key, byte[] cipherText)
static byte[]	doCBCMac(byte[] key, byte[] iv, org.bouncycastle.crypto.paddings.BlockCipherPadding padding, byte[] data)
static byte[]	doCBCMac(byte[] key, byte[] iv, byte[] data) 默认使用PKCS7Padding/PKCS5Padding填充的CBCMAC
static byte[]	doCMac(byte[] key, byte[] data)
static byte[]	doGMac(byte[] key, byte[] iv, int tagLength, byte[] data)
static byte[]	encrypt_CBC_NoPadding(byte[] key, byte[] iv, byte[] data)
static byte[]	encrypt_CBC_Padding(byte[] key, byte[] iv, byte[] data)
static byte[]	encrypt_ECB_NoPadding(byte[] key, byte[] data)
static byte[]	encrypt_ECB_Padding(byte[] key, byte[] data)
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_ECB_NOPADDING

public static final String ALGORITHM_NAME_ECB_NOPADDING

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

ALGORITHM_NAME_CBC_NOPADDING

public static final String ALGORITHM_NAME_CBC_NOPADDING

另请参阅:

常量字段值

DEFAULT_KEY_SIZE

public static final int DEFAULT_KEY_SIZE

SM4算法目前只支持128位（即密钥16字节）

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_ECB_NoPadding

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

抛出:

InvalidKeyException

NoSuchAlgorithmException

NoSuchProviderException

NoSuchPaddingException

IllegalBlockSizeException

BadPaddingException

decrypt_ECB_NoPadding

public static byte[] decrypt_ECB_NoPadding(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

encrypt_CBC_NoPadding

public static byte[] encrypt_CBC_NoPadding(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_NoPadding

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

抛出:

IllegalBlockSizeException

BadPaddingException

InvalidKeyException

NoSuchAlgorithmException

NoSuchProviderException

NoSuchPaddingException

InvalidAlgorithmParameterException

doCMac

public static byte[] doCMac(byte[] key,
                            byte[] data)
                     throws NoSuchProviderException,
                            NoSuchAlgorithmException,
                            InvalidKeyException

抛出:

NoSuchProviderException

NoSuchAlgorithmException

InvalidKeyException

doGMac

public static byte[] doGMac(byte[] key,
                            byte[] iv,
                            int tagLength,
                            byte[] data)

doCBCMac

public static byte[] doCBCMac(byte[] key,
                              byte[] iv,
                              byte[] data)

默认使用PKCS7Padding/PKCS5Padding填充的CBCMAC

参数:

key -

iv -

data -

返回:

doCBCMac

public static byte[] doCBCMac(byte[] key,
                              byte[] iv,
                              org.bouncycastle.crypto.paddings.BlockCipherPadding padding,
                              byte[] data)
                       throws Exception

参数:

key -

iv -

padding - 可以传null，传null表示NoPadding，由调用方保证数据必须是BlockSize的整数倍

data -

返回:

抛出:

Exception