# Package org.bouncycastle.jcajce.provider.symmetric.util

- Interface Summary
  Interface | Description
  --- | ---
  BlockCipherProvider |
  PBE |

- Class Summary
  Class | Description
  --- | ---
  BaseAlgorithmParameterGenerator |
  BaseAlgorithmParameters |
  BaseBlockCipher |
  BaseKeyGenerator |
  BaseMac |
  BaseSecretKeyFactory |
  BaseStreamCipher |
  BaseWrapCipher |
  BaseWrapCipher.ErasableOutputStream |
  BCPBEKey |
  ClassUtil |
  GcmSpecUtil |
  IvAlgorithmParameters |
  PBE.Util | uses the appropriate mixer to generate the key and IV if necessary.
  PBESecretKeyFactory |

- Exception Summary
  Exception | Description
  --- | ---
  BaseWrapCipher.InvalidKeyOrParametersException |