Package net.randombit.botan.seckey.stream

Class BotanStreamCipher.ChaCha20

java.lang.Object

javax.crypto.CipherSpi

net.randombit.botan.seckey.BotanBaseAsymmetricCipher

net.randombit.botan.seckey.stream.BotanStreamCipher

net.randombit.botan.seckey.stream.BotanStreamCipher.ChaCha20

Enclosing class:

BotanStreamCipher

public static final class BotanStreamCipher.ChaCha20
extends BotanStreamCipher

Nested Class Summary

Nested classes/interfaces inherited from class net.randombit.botan.seckey.stream.BotanStreamCipher

BotanStreamCipher.AesCtr, BotanStreamCipher.AesOfb, BotanStreamCipher.ChaCha20, BotanStreamCipher.DesCtr, BotanStreamCipher.DesEdeCtr, BotanStreamCipher.DesEdeOfb, BotanStreamCipher.DesOfb, BotanStreamCipher.Salsa20, BotanStreamCipher.XChaCha20, BotanStreamCipher.XSalsa20

Field Summary

Fields inherited from class net.randombit.botan.seckey.BotanBaseAsymmetricCipher

cipherRef, iv, mode, name

Constructor Summary

Constructors

Constructor	Description
ChaCha20()

Method Summary

Modifier and Type	Method	Description
protected String	getBotanCipherName(int keyLength)	Gets the native botan cipher name (e.g.
protected boolean	isValidNonceLength(int nonceLength)	Checks whether the given nonce size is supported.

Methods inherited from class net.randombit.botan.seckey.stream.BotanStreamCipher

engineDoFinal, engineGetBlockSize, engineGetOutputSize, engineSetPadding, engineUpdate

Methods inherited from class net.randombit.botan.seckey.BotanBaseAsymmetricCipher

clone, doCipher, engineDoFinal, engineGetIV, engineGetParameters, engineInit, engineInit, engineInit, engineReset, engineSetMode, engineUpdate, isDecrypting

Methods inherited from class javax.crypto.CipherSpi

engineDoFinal, engineGetKeySize, engineUnwrap, engineUpdate, engineUpdateAAD, engineUpdateAAD, engineWrap

Methods inherited from class java.lang.Object

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

Constructor Details

ChaCha20

public ChaCha20()

Method Details

getBotanCipherName

protected String getBotanCipherName(int keyLength)

Description copied from class: BotanBaseAsymmetricCipher

Gets the native botan cipher name (e.g. 'AES-128/CBC/PKCS7').

Specified by:

getBotanCipherName in class BotanBaseAsymmetricCipher

Parameters:

keyLength - the key length

Returns:

String containing the Botan cipher name.

isValidNonceLength

protected boolean isValidNonceLength(int nonceLength)

Description copied from class: BotanBaseAsymmetricCipher

Checks whether the given nonce size is supported.

Specified by:

isValidNonceLength in class BotanBaseAsymmetricCipher

Parameters:

nonceLength - the nonce length

Returns:

True is the given nonce length is supported, False otherwise.