# Uses of Package
javax.crypto

- Packages that use javax.crypto
  Package | Description
  --- | ---
  java.security | Provides the classes and interfaces for the security framework.
  javax.crypto | Provides the classes and interfaces for cryptographic operations.
  javax.crypto.interfaces | Provides interfaces for Diffie-Hellman keys as defined in RSA Laboratories' PKCS #3.
  javax.crypto.spec | Provides classes and interfaces for key specifications and algorithm parameter specifications.
  javax.security.auth.kerberos | This package contains utility classes related to the Kerberos network authentication protocol.

- Classes in javax.crypto used by java.security
  Class | Description
  --- | ---
  SecretKey | A secret (symmetric) key.

- Classes in javax.crypto used by javax.crypto
  Class | Description
  --- | ---
  BadPaddingException | This exception is thrown when a particular padding mechanism is expected for the input data but the data is not padded properly.
  Cipher | This class provides the functionality of a cryptographic cipher for encryption and decryption.
  CipherSpi | This class defines the Service Provider Interface (SPI) for the `Cipher` class.
  ExemptionMechanism | This class provides the functionality of an exemption mechanism, examples of which are key recovery, key weakening, and key escrow.
  ExemptionMechanismException | This is the generic ExemptionMechanism exception.
  ExemptionMechanismSpi | This class defines the Service Provider Interface (SPI) for the `ExemptionMechanism` class.
  IllegalBlockSizeException | This exception is thrown when the length of data provided to a block cipher is incorrect, i.e., does not match the block size of the cipher.
  KeyAgreement | This class provides the functionality of a key agreement (or key exchange) protocol.
  KeyAgreementSpi | This class defines the Service Provider Interface (SPI) for the `KeyAgreement` class.
  KeyGenerator | This class provides the functionality of a secret (symmetric) key generator.
  KeyGeneratorSpi | This class defines the Service Provider Interface (SPI) for the `KeyGenerator` class.
  Mac | This class provides the functionality of a "Message Authentication Code" (MAC) algorithm.
  MacSpi | This class defines the Service Provider Interface (SPI) for the `Mac` class.
  NoSuchPaddingException | This exception is thrown when a particular padding mechanism is requested but is not available in the environment.
  SealedObject | This class enables a programmer to create an object and protect its confidentiality with a cryptographic algorithm.
  SecretKey | A secret (symmetric) key.
  SecretKeyFactory | This class represents a factory for secret keys.
  SecretKeyFactorySpi | This class defines the Service Provider Interface (SPI) for the `SecretKeyFactory` class.
  ShortBufferException | This exception is thrown when an output buffer provided by the user is too short to hold the operation result.

- Classes in javax.crypto used by javax.crypto.interfaces
  Class | Description
  --- | ---
  SecretKey | A secret (symmetric) key.

- Classes in javax.crypto used by javax.crypto.spec
  Class | Description
  --- | ---
  SecretKey | A secret (symmetric) key.

- Classes in javax.crypto used by javax.security.auth.kerberos
  Class | Description
  --- | ---
  SecretKey | A secret (symmetric) key.