StandardPasswordDigest.java
上传用户:szyujian
上传日期:2016-09-20
资源大小:320k
文件大小:2k
源码类别:
android开发
开发平台:
C/C++
- /*
- * Copyright (C) 2008 Esmertec AG.
- * Copyright (C) 2008 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 com.android.im.imps;
- import com.android.im.engine.ImException;
- import org.apache.commons.codec.binary.Base64;
- import android.security.MessageDigest;
- import java.io.UnsupportedEncodingException;
- import java.security.NoSuchAlgorithmException;
- public class StandardPasswordDigest implements PasswordDigest {
- public String digest(String schema, String nonce, String password) throws ImException {
- byte[] digestBytes;
- byte[] inputBytes;
- try {
- inputBytes = (nonce + password).getBytes("ISO-8859-1");
- } catch (UnsupportedEncodingException e) {
- throw new ImException(e);
- }
- try {
- if ("SHA".equals(schema))
- schema = "SHA-1";
- MessageDigest md = MessageDigest.getInstance(schema);
- digestBytes = md.digest(inputBytes);
- } catch (NoSuchAlgorithmException e) {
- throw new ImException("Unsupported schema: " + schema);
- }
- return new String(Base64.encodeBase64(digestBytes));
- }
- public String[] getSupportedDigestSchema() {
- return new String[] {"MD5", "SHA"};
- }
- }