org.openeuler.sm4.mode

类 ECB

java.lang.Object

javax.crypto.CipherSpi

org.openeuler.sm4.SM4BaseCipher

org.openeuler.sm4.mode.ECB

public class ECB
extends SM4BaseCipher

SM4 ECB mode

字段概要

从类继承的字段 org.openeuler.sm4.SM4BaseCipher

BLOCKSIZE, inputLenUpdate, inputOffsetUpdate, inputUpdate, isInitialized, len, opmode, padding, rk, sm4

构造器概要

构造器

构造器和说明
ECB()

方法概要

限定符和类型	方法和说明
private void	decrypt(byte[] input, int inputOffset, int inputLen, byte[] res, int offset) SM4 bulk decryption
private byte[]	decryptLastBlock(byte[] input, int inputOffset, int inputLen, int extra) decrypt the last block and return an array containing the decrypted result.
private int	decryptLastBlock(byte[] input, int inputOffset, int inputLen, int extra, byte[] output, int outputOffset) decrypting the last block and return the number of bytes required to store the decryption result
private void	encrypt(byte[] input, int inputOffset, int inputLen, byte[] res, int offset) ECB encrypt
byte[]	engineDoFinal(byte[] input, int inputOffset, int inputLen)
int	engineDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)
void	engineInit(int opmode, Key key, AlgorithmParameterSpec params, SecureRandom random)
void	engineInit(int opmode, Key key, AlgorithmParameters params, SecureRandom random)
void	engineInit(int opmode, Key key, SecureRandom random)
byte[]	engineUpdate(byte[] input, int inputOffset, int inputLen)
int	engineUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)

从类继承的方法 org.openeuler.sm4.SM4BaseCipher

engineGetBlockSize, engineGetIV, engineGetOutputSize, engineGetParameters, engineSetMode, engineSetPadding, engineUpdateAAD, init, reset

从类继承的方法 javax.crypto.CipherSpi

engineDoFinal, engineGetKeySize, engineUnwrap, engineUpdate, engineUpdateAAD, engineWrap

从类继承的方法 java.lang.Object

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

构造器详细资料

ECB

public ECB()

方法详细资料

engineInit

public void engineInit(int opmode,
                       Key key,
                       SecureRandom random)
                throws InvalidKeyException

覆盖:

engineInit 在类中 SM4BaseCipher

抛出:

InvalidKeyException

engineInit

public void engineInit(int opmode,
                       Key key,
                       AlgorithmParameterSpec params,
                       SecureRandom random)
                throws InvalidKeyException,
                       InvalidAlgorithmParameterException

覆盖:

engineInit 在类中 SM4BaseCipher

抛出:

InvalidKeyException

InvalidAlgorithmParameterException

engineInit

public void engineInit(int opmode,
                       Key key,
                       AlgorithmParameters params,
                       SecureRandom random)
                throws InvalidKeyException,
                       InvalidAlgorithmParameterException

覆盖:

engineInit 在类中 SM4BaseCipher

抛出:

InvalidKeyException

InvalidAlgorithmParameterException

engineUpdate

public byte[] engineUpdate(byte[] input,
                           int inputOffset,
                           int inputLen)

覆盖:

engineUpdate 在类中 SM4BaseCipher

engineUpdate

public int engineUpdate(byte[] input,
                        int inputOffset,
                        int inputLen,
                        byte[] output,
                        int outputOffset)
                 throws ShortBufferException

覆盖:

engineUpdate 在类中 SM4BaseCipher

抛出:

ShortBufferException

engineDoFinal

public byte[] engineDoFinal(byte[] input,
                            int inputOffset,
                            int inputLen)
                     throws IllegalBlockSizeException,
                            BadPaddingException

覆盖:

engineDoFinal 在类中 SM4BaseCipher

抛出:

IllegalBlockSizeException

BadPaddingException

engineDoFinal

public int engineDoFinal(byte[] input,
                         int inputOffset,
                         int inputLen,
                         byte[] output,
                         int outputOffset)
                  throws ShortBufferException,
                         IllegalBlockSizeException,
                         BadPaddingException

覆盖:

engineDoFinal 在类中 SM4BaseCipher

抛出:

ShortBufferException

IllegalBlockSizeException

BadPaddingException

decrypt

private void decrypt(byte[] input,
                     int inputOffset,
                     int inputLen,
                     byte[] res,
                     int offset)
              throws BadPaddingException

SM4 bulk decryption

参数:

input -

inputOffset -

inputLen -

res -

offset -

抛出:

BadPaddingException

decryptLastBlock

private byte[] decryptLastBlock(byte[] input,
                                int inputOffset,
                                int inputLen,
                                int extra)
                         throws BadPaddingException

decrypt the last block and return an array containing the decrypted result. if there is padding the length of the final result can only be determined if the last block is decrypted.

参数:

input -

inputOffset -

inputLen -

extra - the number of bytes required in addition to the input data

返回:

byte array which contain the last block decrypted and whose length is extra+inputLen-16+(lastBlockDecrypted).length

抛出:

BadPaddingException

decryptLastBlock

private int decryptLastBlock(byte[] input,
                             int inputOffset,
                             int inputLen,
                             int extra,
                             byte[] output,
                             int outputOffset)
                      throws BadPaddingException,
                             ShortBufferException

decrypting the last block and return the number of bytes required to store the decryption result

参数:

input -

inputOffset -

inputLen -

extra - the number of bytes required in addition to the input data

output -

outputOffset -

返回:

the number of bytes required to store the decryption result

抛出:

BadPaddingException

ShortBufferException

encrypt

private void encrypt(byte[] input,
                     int inputOffset,
                     int inputLen,
                     byte[] res,
                     int offset)

ECB encrypt

参数:

input -

inputOffset -

inputLen -

res - byte array to store the encryption result

offset -