com.amazonaws.services.s3.internal.crypto

クラス CipherFactory

java.lang.Object

com.amazonaws.services.s3.internal.crypto.CipherFactory

public class CipherFactory
extends java.lang.Object

Factory for creating Ciphers based on the crypto key and configuration specified in the constructor. Each invocation of createCipher() will produce a new, identical Cipher object. Each returned Cipher will encrypt data with exactly the same output as any other Cipher returned by this instance of CipherFactory.

コンストラクタの概要

コンストラクタ

コンストラクタと説明
CipherFactory(javax.crypto.SecretKey symmetricKey, int cipherMode, byte[] initVectorBytes, java.security.Provider cryptoProvider) Creates a new CipherFactory that will produce ciphers using the specified key, mode, IV and provider.

メソッドの概要

メソッド

修飾子とタイプ	メソッドと説明
javax.crypto.Cipher	createCipher() Creates a new Cipher instance based on the crypto parameters specified in the constructor.

クラスから継承されたメソッド java.lang.Object

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

コンストラクタの詳細

CipherFactory

public CipherFactory(javax.crypto.SecretKey symmetricKey,
             int cipherMode,
             byte[] initVectorBytes,
             java.security.Provider cryptoProvider)

Creates a new CipherFactory that will produce ciphers using the specified key, mode, IV and provider.

パラメータ:

symmetricKey - The symmetric key used in the ciphers created by this factory.

cipherMode - The mode indicating whether the created ciphers are for encrypting or decrypting.

initVectorBytes - The optional crypto IV used to initialize the ciphers.

cryptoProvider - The optional Java crypto provider implementation, if an alternate crypto provider is to be used.

メソッドの詳細

createCipher

public javax.crypto.Cipher createCipher()

Creates a new Cipher instance based on the crypto parameters specified in the constructor. Each Cipher instance is identical to any other Cipher produced by this CipherFactory.

戻り値:

A new Cipher instance, identical to each Cipher produced by this factory instance.