Class OpenSSLAeadCipherChaCha20

java.lang.Object

javax.crypto.CipherSpi

org.conscrypt.OpenSSLCipher

org.conscrypt.OpenSSLAeadCipher

org.conscrypt.OpenSSLAeadCipherChaCha20

@Internal
public class OpenSSLAeadCipherChaCha20
extends OpenSSLAeadCipher

Nested Class Summary

Nested classes/interfaces inherited from class OpenSSLCipher

OpenSSLCipher.Mode, OpenSSLCipher.Padding

Field Summary

Fields inherited from class OpenSSLAeadCipher

buf, bufCount, DEFAULT_TAG_SIZE_BITS, evpAead, tagLengthInBytes

Fields inherited from class OpenSSLCipher

encodedKey, iv, mode

Constructor Summary

Constructors

Constructor	Description
OpenSSLAeadCipherChaCha20()

Method Summary

Modifier and Type	Method	Description
(package private) void	checkSupportedKeySize(int keyLength)	Checks whether the cipher supports this particular keySize (in bytes) and throws InvalidKeyException if it doesn't.
(package private) void	checkSupportedMode(OpenSSLCipher.Mode mode)	Checks whether the cipher supports this particular cipher mode and throws NoSuchAlgorithmException if it doesn't.
(package private) String	getBaseCipherName()	Returns the standard name for the particular algorithm.
(package private) int	getCipherBlockSize()
(package private) long	getEVP_AEAD(int keyLength)
(package private) int	getOutputSizeForFinal(int inputLen)	The size of output if doFinal() is called with this inputLen.

Methods inherited from class OpenSSLAeadCipher

allowsNonceReuse, checkSupportedPadding, checkSupportedTagLength, doFinalInternal, doFinalInternal, engineDoFinal, engineDoFinal, engineInitInternal, engineUpdateAAD, engineUpdateAAD, getOutputSizeForUpdate, updateInternal

Methods inherited from class OpenSSLCipher

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

Methods inherited from class CipherSpi

engineUpdate

Methods inherited from class Object

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

Constructor Details

OpenSSLAeadCipherChaCha20

public OpenSSLAeadCipherChaCha20()

Method Details

checkSupportedKeySize

void checkSupportedKeySize(int keyLength)
                    throws InvalidKeyException

Description copied from class: OpenSSLCipher

Checks whether the cipher supports this particular keySize (in bytes) and throws InvalidKeyException if it doesn't.

Specified by:

checkSupportedKeySize in class OpenSSLCipher

Throws:

InvalidKeyException

getBaseCipherName

String getBaseCipherName()

Description copied from class: OpenSSLCipher

Returns the standard name for the particular algorithm.

Specified by:

getBaseCipherName in class OpenSSLCipher

getCipherBlockSize

int getCipherBlockSize()

Specified by:

getCipherBlockSize in class OpenSSLCipher

checkSupportedMode

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

long getEVP_AEAD(int keyLength)
          throws InvalidKeyException

Specified by:

getEVP_AEAD in class OpenSSLAeadCipher

Throws:

InvalidKeyException

getOutputSizeForFinal

int getOutputSizeForFinal(int inputLen)

Description copied from class: OpenSSLCipher

The size of output if doFinal() is called with this inputLen. If padding is enabled and the size of the input puts it right at the block size, it will add another block for the padding.

Overrides:

getOutputSizeForFinal in class OpenSSLAeadCipher