com.jaemon.dingtalk.utils.ConfigTools Maven / Gradle / Ivy
/*
* Copyright 2015-2020 Jaemon([email protected])
*
* 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.jaemon.dingtalk.utils;
import javax.crypto.Cipher;
import java.security.*;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.RSAPrivateKeySpec;
import java.security.spec.RSAPublicKeySpec;
import java.security.spec.X509EncodedKeySpec;
import static com.jaemon.dingtalk.utils.DingTalkUtils.base64ToByteArray;
import static com.jaemon.dingtalk.utils.DingTalkUtils.byteArrayToBase64;
/**
* Config Tools
*
* @author Jaemon#[email protected]
* @since 1.0
*/
public class ConfigTools {
private ConfigTools() {}
private static final String DEFAULT_PRIVATE_KEY_STRING = "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";
public static final String DEFAULT_PUBLIC_KEY_STRING = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCt1JDrj987AB2qeCJj17oVbJIihptz13DP16NNgm65gWBzG9GxrgcnrEqV4Xqejj1hnayFui7w50uor8la7A3gXfNkEuipnxDEVSaKnqlWct5qYbLQDrRyuDhrQARaIF8NkXw0bpxquRlvbIReA1hYa1lrASv1BrO5Ca1Yq+r++wIDAQAB";
public static void main(String[] args) throws Exception {
if (args.length == 0) {
System.out.println("secret is empty");
return;
}
String password = args[0];
String[] arr = genKeyPair(1024);
System.out.println("privateKey: " + arr[0]);
System.out.println("decryptKey: " + arr[1]);
String encrypt = encrypt(arr[0], password);
System.out.println("encrypt tokenId: " + encrypt);
String decrypt = decrypt(arr[1], encrypt);
System.out.println("decrypt tokenId:" + decrypt);
}
public static String decrypt(String cipherText) throws Exception {
return decrypt((String) null, cipherText);
}
public static String decrypt(String publicKeyText, String cipherText)
throws Exception {
PublicKey publicKey = getPublicKey(publicKeyText);
return decrypt(publicKey, cipherText);
}
public static PublicKey getPublicKey(String publicKeyText) {
if (publicKeyText == null || publicKeyText.length() == 0) {
publicKeyText = DEFAULT_PUBLIC_KEY_STRING;
}
try {
byte[] publicKeyBytes = base64ToByteArray(publicKeyText);
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(
publicKeyBytes);
KeyFactory keyFactory = KeyFactory.getInstance("RSA", "SunRsaSign");
return keyFactory.generatePublic(x509KeySpec);
} catch (Exception e) {
throw new IllegalArgumentException("Failed to get public key", e);
}
}
public static String decrypt(PublicKey publicKey, String cipherText)
throws Exception {
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
try {
cipher.init(Cipher.DECRYPT_MODE, publicKey);
} catch (InvalidKeyException e) {
// 因为 IBM JDK 不支持私钥加密, 公钥解密, 所以要反转公私钥
// 也就是说对于解密, 可以通过公钥的参数伪造一个私钥对象欺骗 IBM JDK
RSAPublicKey rsaPublicKey = (RSAPublicKey) publicKey;
RSAPrivateKeySpec spec = new RSAPrivateKeySpec(rsaPublicKey.getModulus(), rsaPublicKey.getPublicExponent());
Key fakePrivateKey = KeyFactory.getInstance("RSA").generatePrivate(spec);
cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.DECRYPT_MODE, fakePrivateKey);
}
if (cipherText == null || cipherText.length() == 0) {
return cipherText;
}
byte[] cipherBytes = base64ToByteArray(cipherText);
byte[] plainBytes = cipher.doFinal(cipherBytes);
return new String(plainBytes);
}
public static String encrypt(String plainText) throws Exception {
return encrypt((String) null, plainText);
}
public static String encrypt(String key, String plainText) throws Exception {
if (key == null) {
key = DEFAULT_PRIVATE_KEY_STRING;
}
byte[] keyBytes = base64ToByteArray(key);
return encrypt(keyBytes, plainText);
}
public static String encrypt(byte[] keyBytes, String plainText)
throws Exception {
PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory factory = KeyFactory.getInstance("RSA", "SunRsaSign");
PrivateKey privateKey = factory.generatePrivate(spec);
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
try {
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
} catch (InvalidKeyException e) {
//For IBM JDK, 原因请看解密方法中的说明
RSAPrivateKey rsaPrivateKey = (RSAPrivateKey) privateKey;
RSAPublicKeySpec publicKeySpec = new RSAPublicKeySpec(rsaPrivateKey.getModulus(), rsaPrivateKey.getPrivateExponent());
Key fakePublicKey = KeyFactory.getInstance("RSA").generatePublic(publicKeySpec);
cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, fakePublicKey);
}
byte[] encryptedBytes = cipher.doFinal(plainText.getBytes("UTF-8"));
String encryptedString = byteArrayToBase64(encryptedBytes);
return encryptedString;
}
public static byte[][] genKeyPairBytes(int keySize)
throws NoSuchAlgorithmException, NoSuchProviderException {
byte[][] keyPairBytes = new byte[2][];
KeyPairGenerator gen = KeyPairGenerator.getInstance("RSA", "SunRsaSign");
gen.initialize(keySize, new SecureRandom());
KeyPair pair = gen.generateKeyPair();
keyPairBytes[0] = pair.getPrivate().getEncoded();
keyPairBytes[1] = pair.getPublic().getEncoded();
return keyPairBytes;
}
public static String[] genKeyPair(int keySize)
throws NoSuchAlgorithmException, NoSuchProviderException {
byte[][] keyPairBytes = genKeyPairBytes(keySize);
String[] keyPairs = new String[2];
keyPairs[0] = byteArrayToBase64(keyPairBytes[0]);
keyPairs[1] = byteArrayToBase64(keyPairBytes[1]);
return keyPairs;
}
}