Package org.bouncycastle.jcajce.provider.asymmetric.elgamal

## Class CipherSpi

- java.lang.Object
- - javax.crypto.CipherSpi
  - - org.bouncycastle.jcajce.provider.asymmetric.util.BaseCipherSpi
    - - org.bouncycastle.jcajce.provider.asymmetric.elgamal.CipherSpi

- Direct Known Subclasses:
    `CipherSpi.NoPadding`, `CipherSpi.PKCS1v1_5Padding`

      public class CipherSpi
      extends BaseCipherSpi

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class | Description
    --- | --- | ---
    `static class` | `CipherSpi.NoPadding` | classes that inherit from us.
    `static class` | `CipherSpi.PKCS1v1_5Padding` |

    - ### Nested classes/interfaces inherited from class org.bouncycastle.jcajce.provider.asymmetric.util.BaseCipherSpi

      `BaseCipherSpi.ErasableOutputStream`

  - ### Field Summary

    - ### Fields inherited from class org.bouncycastle.jcajce.provider.asymmetric.util.BaseCipherSpi

      `wrapEngine`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `CipherSpi​(AsymmetricBlockCipher engine)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected byte[]` | `engineDoFinal​(byte[] input, int inputOffset, int inputLen)` |
    `protected int` | `engineDoFinal​(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)` |
    `protected int` | `engineGetBlockSize()` |
    `protected int` | `engineGetKeySize​(java.security.Key key)` |
    `protected int` | `engineGetOutputSize​(int inputLen)` |
    `protected java.security.AlgorithmParameters` | `engineGetParameters()` |
    `protected void` | `engineInit​(int opmode, java.security.Key key, java.security.AlgorithmParameters params, java.security.SecureRandom random)` |
    `protected void` | `engineInit​(int opmode, java.security.Key key, java.security.SecureRandom random)` |
    `protected void` | `engineInit​(int opmode, java.security.Key key, java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random)` |
    `protected void` | `engineSetMode​(java.lang.String mode)` |
    `protected void` | `engineSetPadding​(java.lang.String padding)` |
    `protected byte[]` | `engineUpdate​(byte[] input, int inputOffset, int inputLen)` |
    `protected int` | `engineUpdate​(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset)` |

    - ### Methods inherited from class org.bouncycastle.jcajce.provider.asymmetric.util.BaseCipherSpi

      `createParametersInstance, engineGetIV, engineUnwrap, engineWrap`

    - ### Methods inherited from class javax.crypto.CipherSpi

      `engineDoFinal, engineUpdate, engineUpdateAAD, engineUpdateAAD`

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### CipherSpi

          public CipherSpi​(AsymmetricBlockCipher engine)

  - ### Method Detail

    - #### engineGetBlockSize

          protected int engineGetBlockSize()

      Overrides:
        `engineGetBlockSize` in class `BaseCipherSpi`

    - #### engineGetKeySize

          protected int engineGetKeySize​(java.security.Key key)

      Overrides:
        `engineGetKeySize` in class `BaseCipherSpi`

    - #### engineGetOutputSize

          protected int engineGetOutputSize​(int inputLen)

      Overrides:
        `engineGetOutputSize` in class `BaseCipherSpi`

    - #### engineGetParameters

          protected java.security.AlgorithmParameters engineGetParameters()

      Overrides:
        `engineGetParameters` in class `BaseCipherSpi`

    - #### engineSetMode

          protected void engineSetMode​(java.lang.String mode)
                                throws java.security.NoSuchAlgorithmException

      Overrides:
        `engineSetMode` in class `BaseCipherSpi`
      Throws:
        `java.security.NoSuchAlgorithmException`

    - #### engineSetPadding

          protected void engineSetPadding​(java.lang.String padding)
                                   throws javax.crypto.NoSuchPaddingException

      Overrides:
        `engineSetPadding` in class `BaseCipherSpi`
      Throws:
        `javax.crypto.NoSuchPaddingException`

    - #### engineInit

          protected void engineInit​(int opmode,
                                    java.security.Key key,
                                    java.security.spec.AlgorithmParameterSpec params,
                                    java.security.SecureRandom random)
                             throws java.security.InvalidKeyException,
                                    java.security.InvalidAlgorithmParameterException

      Specified by:
        `engineInit` in class `javax.crypto.CipherSpi`
      Throws:
        `java.security.InvalidKeyException`
        `java.security.InvalidAlgorithmParameterException`

    - #### engineInit

          protected void engineInit​(int opmode,
                                    java.security.Key key,
                                    java.security.AlgorithmParameters params,
                                    java.security.SecureRandom random)
                             throws java.security.InvalidKeyException,
                                    java.security.InvalidAlgorithmParameterException

      Specified by:
        `engineInit` in class `javax.crypto.CipherSpi`
      Throws:
        `java.security.InvalidKeyException`
        `java.security.InvalidAlgorithmParameterException`

    - #### engineInit

          protected void engineInit​(int opmode,
                                    java.security.Key key,
                                    java.security.SecureRandom random)
                             throws java.security.InvalidKeyException

      Specified by:
        `engineInit` in class `javax.crypto.CipherSpi`
      Throws:
        `java.security.InvalidKeyException`

    - #### engineUpdate

          protected byte[] engineUpdate​(byte[] input,
                                        int inputOffset,
                                        int inputLen)

      Specified by:
        `engineUpdate` in class `javax.crypto.CipherSpi`

    - #### engineUpdate

          protected int engineUpdate​(byte[] input,
                                     int inputOffset,
                                     int inputLen,
                                     byte[] output,
                                     int outputOffset)

      Specified by:
        `engineUpdate` in class `javax.crypto.CipherSpi`

    - #### engineDoFinal

          protected byte[] engineDoFinal​(byte[] input,
                                         int inputOffset,
                                         int inputLen)
                                  throws javax.crypto.IllegalBlockSizeException,
                                         javax.crypto.BadPaddingException

      Specified by:
        `engineDoFinal` in class `javax.crypto.CipherSpi`
      Throws:
        `javax.crypto.IllegalBlockSizeException`
        `javax.crypto.BadPaddingException`

    - #### engineDoFinal

          protected int engineDoFinal​(byte[] input,
                                      int inputOffset,
                                      int inputLen,
                                      byte[] output,
                                      int outputOffset)
                               throws javax.crypto.IllegalBlockSizeException,
                                      javax.crypto.BadPaddingException,
                                      javax.crypto.ShortBufferException

      Specified by:
        `engineDoFinal` in class `javax.crypto.CipherSpi`
      Throws:
        `javax.crypto.IllegalBlockSizeException`
        `javax.crypto.BadPaddingException`
        `javax.crypto.ShortBufferException`