| 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.
|
| Class | Description |
|---|---|
| SecretKey |
A secret (symmetric) key.
|
| 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.
|
| Class | Description |
|---|---|
| SecretKey |
A secret (symmetric) key.
|
| Class | Description |
|---|---|
| SecretKey |
A secret (symmetric) key.
|
| Class | Description |
|---|---|
| SecretKey |
A secret (symmetric) key.
|
Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2025, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
Scripting on this page tracks web page traffic, but does not change the content in any way.