acc835f385
This factory provides a way to obtain information about a SecretKey
backed by AndroidKeyStore. The information is provided in a form of an
instance of KeyStoreKeySpec class.
EXAMPLE
SecretKeyFactory factory = SecretKeyFactory.getInstance(
key.getAlgorithm(), "AndroidKeyStore");
KeyStoreKeySpec keySpec =
factory.getKeySpec(key, KeyStoreKeySpec.class);
Bug: 18088752
Change-Id: I26c9dd544f80230fe7039501eeb471eaf875452b
75 lines
2.9 KiB
Java
75 lines
2.9 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.security;
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import java.security.Provider;
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/**
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* A provider focused on providing JCA interfaces for the Android KeyStore.
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*
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* @hide
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*/
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public class AndroidKeyStoreProvider extends Provider {
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public static final String PROVIDER_NAME = "AndroidKeyStore";
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public AndroidKeyStoreProvider() {
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super(PROVIDER_NAME, 1.0, "Android KeyStore security provider");
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// java.security.KeyStore
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put("KeyStore." + AndroidKeyStore.NAME, AndroidKeyStore.class.getName());
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// java.security.KeyPairGenerator
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put("KeyPairGenerator.EC", AndroidKeyPairGenerator.EC.class.getName());
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put("KeyPairGenerator.RSA", AndroidKeyPairGenerator.RSA.class.getName());
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// javax.crypto.KeyGenerator
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put("KeyGenerator.AES", KeyStoreKeyGeneratorSpi.AES.class.getName());
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put("KeyGenerator.HmacSHA256", KeyStoreKeyGeneratorSpi.HmacSHA256.class.getName());
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// java.security.SecretKeyFactory
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put("SecretKeyFactory.AES", KeyStoreSecretKeyFactorySpi.class.getName());
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put("SecretKeyFactory.HmacSHA256", KeyStoreSecretKeyFactorySpi.class.getName());
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// javax.crypto.Mac
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putMacImpl("HmacSHA256", KeyStoreHmacSpi.HmacSHA256.class.getName());
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// javax.crypto.Cipher
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putSymmetricCipherImpl("AES/ECB/NoPadding",
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KeyStoreCipherSpi.AES.ECB.NoPadding.class.getName());
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putSymmetricCipherImpl("AES/ECB/PKCS7Padding",
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KeyStoreCipherSpi.AES.ECB.PKCS7Padding.class.getName());
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putSymmetricCipherImpl("AES/CBC/NoPadding",
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KeyStoreCipherSpi.AES.CBC.NoPadding.class.getName());
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putSymmetricCipherImpl("AES/CBC/PKCS7Padding",
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KeyStoreCipherSpi.AES.CBC.PKCS7Padding.class.getName());
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putSymmetricCipherImpl("AES/CTR/NoPadding",
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KeyStoreCipherSpi.AES.CTR.NoPadding.class.getName());
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}
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private void putMacImpl(String algorithm, String implClass) {
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put("Mac." + algorithm, implClass);
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put("Mac." + algorithm + " SupportedKeyClasses", KeyStoreSecretKey.class.getName());
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}
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private void putSymmetricCipherImpl(String transformation, String implClass) {
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put("Cipher." + transformation, implClass);
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put("Cipher." + transformation + " SupportedKeyClasses", KeyStoreSecretKey.class.getName());
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}
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}
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