Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright 2016 kubotaku1119 <kubotaku1119@gmail.com>
 * <p/>
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.
 */

import android.annotation.TargetApi;

import android.os.Build;

import android.security.keystore.KeyGenParameterSpec;
import android.security.keystore.KeyProperties;

import java.security.InvalidAlgorithmParameterException;
import java.security.KeyPairGenerator;

import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;

public class Main {
    private static final String KEY_PROVIDER = "AndroidKeyStore";
    private static final String KEY_ALIAS = "otegaru_iot";

    @TargetApi(Build.VERSION_CODES.M)
    private static void generateNewKey() {
        try {
            KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance(KeyProperties.KEY_ALGORITHM_RSA,
                    KEY_PROVIDER);

            keyPairGenerator.initialize(new KeyGenParameterSpec.Builder(KEY_ALIAS, KeyProperties.PURPOSE_DECRYPT)
                    .setDigests(KeyProperties.DIGEST_SHA256, KeyProperties.DIGEST_SHA512)
                    .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_RSA_OAEP).build());
            keyPairGenerator.generateKeyPair();

        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (NoSuchProviderException e) {
            e.printStackTrace();
        } catch (InvalidAlgorithmParameterException e) {
            e.printStackTrace();
        }
    }
}