org.conscrypt

Class OpenSSLCipher.EVP_AEAD.AES.GCM

java.lang.Object

javax.crypto.CipherSpi

org.conscrypt.OpenSSLCipher

org.conscrypt.OpenSSLCipher.EVP_AEAD

org.conscrypt.OpenSSLCipher.EVP_AEAD.AES

org.conscrypt.OpenSSLCipher.EVP_AEAD.AES.GCM

Direct Known Subclasses:

OpenSSLCipher.EVP_AEAD.AES.GCM.AES_128, OpenSSLCipher.EVP_AEAD.AES.GCM.AES_256

Enclosing class:

OpenSSLCipher.EVP_AEAD.AES

public static class OpenSSLCipher.EVP_AEAD.AES.GCM
extends OpenSSLCipher.EVP_AEAD.AES

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OpenSSLCipher.EVP_AEAD.AES.GCM.AES_128
static class	OpenSSLCipher.EVP_AEAD.AES.GCM.AES_256

Nested classes/interfaces inherited from class org.conscrypt.OpenSSLCipher.EVP_AEAD.AES

OpenSSLCipher.EVP_AEAD.AES.GCM

Nested classes/interfaces inherited from class org.conscrypt.OpenSSLCipher.EVP_AEAD

OpenSSLCipher.EVP_AEAD.AES

Nested classes/interfaces inherited from class org.conscrypt.OpenSSLCipher

OpenSSLCipher.EVP_AEAD, OpenSSLCipher.EVP_CIPHER, OpenSSLCipher.Mode, OpenSSLCipher.Padding

Field Summary

Fields inherited from class org.conscrypt.OpenSSLCipher.EVP_AEAD

buf, bufCount, evpAead

Fields inherited from class org.conscrypt.OpenSSLCipher

encodedKey, iv, mode

Constructor Summary

Constructors

Constructor and Description
GCM()

Method Summary

Modifier and Type	Method and Description
protected void	checkSupportedMode(OpenSSLCipher.Mode mode) Checks whether the cipher supports this particular cipher mode and throws NoSuchAlgorithmException if it doesn't.
protected int	doFinalInternal(byte[] output, int outputOffset, int maximumLen) API-specific implementation of the final block.
protected void	engineInitInternal(byte[] encodedKey, AlgorithmParameterSpec params, SecureRandom random) API-specific implementation of initializing the cipher.
protected void	engineUpdateAAD(byte[] input, int inputOffset, int inputLen)
protected long	getEVP_AEAD(int keyLength)
protected int	updateInternal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset, int maximumLen) API-specific implementation of updating the cipher.

Methods inherited from class org.conscrypt.OpenSSLCipher.EVP_AEAD.AES

checkSupportedKeySize, getBaseCipherName, getCipherBlockSize, getOutputSizeForUpdate

Methods inherited from class org.conscrypt.OpenSSLCipher.EVP_AEAD

checkSupportedPadding, engineGetParameters, getOutputSizeForFinal

Methods inherited from class org.conscrypt.OpenSSLCipher

engineDoFinal, engineDoFinal, engineGetBlockSize, engineGetIV, engineGetOutputSize, engineInit, engineInit, engineInit, engineSetMode, engineSetPadding, engineUnwrap, engineUpdate, engineUpdate, engineWrap, getPadding, isEncrypting, supportsVariableSizeIv, supportsVariableSizeKey

Methods inherited from class javax.crypto.CipherSpi

engineDoFinal, engineGetKeySize, engineUpdate, engineUpdateAAD

Methods inherited from class java.lang.Object

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

Constructor Detail

GCM

public GCM()

Method Detail

engineInitInternal

protected void engineInitInternal(byte[] encodedKey,
                                  AlgorithmParameterSpec params,
                                  SecureRandom random)
                           throws InvalidKeyException,
                                  InvalidAlgorithmParameterException

Description copied from class: OpenSSLCipher

API-specific implementation of initializing the cipher. The OpenSSLCipher.isEncrypting() function will tell whether it should be initialized for encryption or decryption. The encodedKey will be the bytes of a supported key size.

Overrides:

engineInitInternal in class OpenSSLCipher.EVP_AEAD

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

updateInternal

protected int updateInternal(byte[] input,
                             int inputOffset,
                             int inputLen,
                             byte[] output,
                             int outputOffset,
                             int maximumLen)
                      throws ShortBufferException

Description copied from class: OpenSSLCipher

API-specific implementation of updating the cipher. The maximumLen will be the maximum length of the output as returned by OpenSSLCipher.getOutputSizeForUpdate(int). The return value must be the number of bytes processed and placed into output. On error, an exception must be thrown.

Overrides:

updateInternal in class OpenSSLCipher.EVP_AEAD

Throws:

ShortBufferException

doFinalInternal

protected int doFinalInternal(byte[] output,
                              int outputOffset,
                              int maximumLen)
                       throws IllegalBlockSizeException,
                              BadPaddingException

Description copied from class: OpenSSLCipher

API-specific implementation of the final block. The maximumLen will be the maximum length of the possible output as returned by OpenSSLCipher.getOutputSizeForFinal(int). The return value must be the number of bytes processed and placed into output. On error, an exception must be thrown.

Overrides:

doFinalInternal in class OpenSSLCipher.EVP_AEAD

Throws:

IllegalBlockSizeException

BadPaddingException

engineUpdateAAD

protected void engineUpdateAAD(byte[] input,
                               int inputOffset,
                               int inputLen)

Overrides:

engineUpdateAAD in class OpenSSLCipher.EVP_AEAD

checkSupportedMode

protected void checkSupportedMode(OpenSSLCipher.Mode mode)
                           throws NoSuchAlgorithmException

Description copied from class: OpenSSLCipher

Checks whether the cipher supports this particular cipher mode and throws NoSuchAlgorithmException if it doesn't.

Specified by:

checkSupportedMode in class OpenSSLCipher

Throws:

NoSuchAlgorithmException

getEVP_AEAD

protected long getEVP_AEAD(int keyLength)
                    throws InvalidKeyException

Specified by:

getEVP_AEAD in class OpenSSLCipher.EVP_AEAD

Throws:

InvalidKeyException