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/*
* Copyright (C) 2017 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.voicemail.impl.transcribe;
import android.annotation.TargetApi;
import android.os.Build.VERSION_CODES;
import android.util.Base64;
import com.android.dialer.common.Assert;
import com.google.protobuf.ByteString;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/** Utility methods used by this transcription package. */
public class TranscriptionUtils {
@TargetApi(VERSION_CODES.O)
static String getFingerprintFor(ByteString data) {
Assert.checkArgument(data != null);
try {
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] md5Bytes = md.digest(data.toByteArray());
return Base64.encodeToString(md5Bytes, Base64.DEFAULT);
} catch (NoSuchAlgorithmException e) {
Assert.fail(e.toString());
}
return null;
}
}
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