1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.webkit; 18 19 import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; 20 import org.bouncycastle.asn1.x509.AlgorithmIdentifier; 21 import org.bouncycastle.jce.netscape.NetscapeCertRequest; 22 import org.bouncycastle.util.encoders.Base64; 23 24 import android.content.ActivityNotFoundException; 25 import android.content.Context; 26 import android.content.Intent; 27 import android.security.Credentials; 28 import android.util.Log; 29 30 import java.security.KeyPair; 31 import java.security.KeyPairGenerator; 32 33 class CertTool { 34 private static final String LOGTAG = "CertTool"; 35 36 private static final AlgorithmIdentifier MD5_WITH_RSA = 37 new AlgorithmIdentifier(PKCSObjectIdentifiers.md5WithRSAEncryption); 38 39 static final String CERT = Credentials.CERTIFICATE; 40 static final String PKCS12 = Credentials.PKCS12; 41 getKeyStrengthList()42 static String[] getKeyStrengthList() { 43 return new String[] {"High Grade", "Medium Grade"}; 44 } 45 getSignedPublicKey(Context context, int index, String challenge)46 static String getSignedPublicKey(Context context, int index, String challenge) { 47 try { 48 KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA"); 49 generator.initialize((index == 0) ? 2048 : 1024); 50 KeyPair pair = generator.genKeyPair(); 51 52 NetscapeCertRequest request = new NetscapeCertRequest(challenge, 53 MD5_WITH_RSA, pair.getPublic()); 54 request.sign(pair.getPrivate()); 55 byte[] signed = request.toASN1Object().getDEREncoded(); 56 57 Credentials.getInstance().install(context, pair); 58 return new String(Base64.encode(signed)); 59 } catch (Exception e) { 60 Log.w(LOGTAG, e); 61 } 62 return null; 63 } 64 addCertificate(Context context, String type, byte[] value)65 static void addCertificate(Context context, String type, byte[] value) { 66 Credentials.getInstance().install(context, type, value); 67 } 68 CertTool()69 private CertTool() {} 70 } 71