| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.bouncycastle.crypto.digests; |
| |
| import java.security.Security; |
| import java.util.Locale; |
| |
| import org.bouncycastle.crypto.Digest; |
| |
| /** |
| * Level of indirection to let us select OpenSSLDigest implementations |
| * for libcore but fallback to BouncyCastle ones on the RI. |
| */ |
| public final class AndroidDigestFactory { |
| private static final AndroidDigestFactoryInterface CONSCRYPT; |
| private static final AndroidDigestFactoryInterface BC; |
| |
| static { |
| BC = new AndroidDigestFactoryBouncyCastle(); |
| if (Security.getProvider("AndroidOpenSSL") != null) { |
| CONSCRYPT = new AndroidDigestFactoryOpenSSL(); |
| } else { |
| if (System.getProperty("java.vendor", "").toLowerCase(Locale.US).contains("android")) { |
| throw new AssertionError("Provider AndroidOpenSSL must exist"); |
| } |
| CONSCRYPT = null; |
| } |
| } |
| |
| public static Digest getMD5() { |
| if (CONSCRYPT != null) { |
| try { |
| return CONSCRYPT.getMD5(); |
| } catch (Exception ignored) { |
| } |
| } |
| |
| return BC.getMD5(); |
| } |
| |
| public static Digest getSHA1() { |
| if (CONSCRYPT != null) { |
| try { |
| return CONSCRYPT.getSHA1(); |
| } catch (Exception ignored) { |
| } |
| } |
| |
| return BC.getSHA1(); |
| } |
| |
| public static Digest getSHA224() { |
| if (CONSCRYPT != null) { |
| try { |
| return CONSCRYPT.getSHA224(); |
| } catch (Exception ignored) { |
| } |
| } |
| |
| return BC.getSHA224(); |
| } |
| |
| public static Digest getSHA256() { |
| if (CONSCRYPT != null) { |
| try { |
| return CONSCRYPT.getSHA256(); |
| } catch (Exception ignored) { |
| } |
| } |
| |
| return BC.getSHA256(); |
| } |
| |
| public static Digest getSHA384() { |
| if (CONSCRYPT != null) { |
| try { |
| return CONSCRYPT.getSHA384(); |
| } catch (Exception ignored) { |
| } |
| } |
| |
| return BC.getSHA384(); |
| } |
| |
| public static Digest getSHA512() { |
| if (CONSCRYPT != null) { |
| try { |
| return CONSCRYPT.getSHA512(); |
| } catch (Exception ignored) { |
| } |
| } |
| |
| return BC.getSHA512(); |
| } |
| } |