1 /* 2 * Copyright (C) 2007 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.security; 18 19 /** 20 * Provides the SHA-1 hash encyption. 21 */ 22 public class Sha1MessageDigest extends MessageDigest 23 { 24 // ptr to native context 25 private int mNativeSha1Context; 26 27 public Sha1MessageDigest() 28 { 29 init(); 30 } 31 32 public byte[] digest(byte[] input) 33 { 34 update(input); 35 return digest(); 36 } 37 38 private native void init(); 39 public native void update(byte[] input); 40 public native byte[] digest(); 41 native public void reset(); 42 } 43