91305ab9d1
- 创建项目根目录和主要子模块 - 添加基本的 Activity 和布局文件 - 实现简单的导航和电话拨打功能 - 添加相机和图像处理相关代码 - 创建网络请求和数据加密工具类 - 设置 AndroidManifest 文件和权限
347 lines
14 KiB
Java
347 lines
14 KiB
Java
package com.za.net;
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import android.util.Base64;
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import android.util.Log;
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import java.io.ByteArrayOutputStream;
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import java.security.Key;
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import java.security.KeyFactory;
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import java.security.KeyPair;
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import java.security.KeyPairGenerator;
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import java.security.PrivateKey;
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import java.security.PublicKey;
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import java.security.Signature;
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import java.security.interfaces.RSAPrivateKey;
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import java.security.interfaces.RSAPublicKey;
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import java.security.spec.PKCS8EncodedKeySpec;
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import java.security.spec.X509EncodedKeySpec;
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import java.util.HashMap;
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import java.util.Map;
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import javax.crypto.Cipher;
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public class RSAUtils {
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/**
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* 加密算法RSA
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*/
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private static final String KEY_ALGORITHM = "RSA";
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/**
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* 签名算法
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*/
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// public static final String SIGNATURE_ALGORITHM = "MD5withRSA";
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private static final String SIGNATURE_ALGORITHM = "SHA256withRSA";
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/**
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* 获取公钥的key
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*/
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private static final String PUBLIC_KEY = "RSAPublicKey";
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/**
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* 获取私钥的key
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*/
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private static final String PRIVATE_KEY = "RSAPrivateKey";
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/**
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* RSA最大加密明文大小
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*/
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private static final int MAX_ENCRYPT_BLOCK = 117;
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/**
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* RSA最大解密密文大小
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*/
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private static final int MAX_DECRYPT_BLOCK = 256;
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public static void main(String[] args) {
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// try {
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// genKeyPair(2048);
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// } catch (Exception e) {
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// e.printStackTrace();
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// }
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/*RSA 2048*/
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// String publicKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAichGTEP0QFswnvn+ZAQrgGHM8VeDZLJuezGhgxh4d9SyRUfnIW/zefT71rwS4bZUs1MPxJwavOyxABJOHLuckdHXknCsGEWz78gsA6D0+O+9dl1gCZR29nnN/NlzmNbSjFnzvsTJYBlS88qSr35RXFE+6DM7uPsS8Fm2I+65FteJ8p2yMvpSg72QkIX8xvI1F1uwXrciIB+4u7uTozxIplMOo4a6uhAm3W+Kjpz3ni2btjGqHRbqb3ebSZyl+nFfnjQaBe3XyVxAWDSanjgFj/wbqbeug9FBs+nQFVPIZR9z0aE5Ndi5o3eSkV7HFmWpkxaiPZ0BLRK3XHMaBtuSpwIDAQAB";
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// String privateKey = "MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQCJyEZMQ/RAWzCe+f5kBCuAYczxV4Nksm57MaGDGHh31LJFR+chb/N59PvWvBLhtlSzUw/EnBq87LEAEk4cu5yR0deScKwYRbPvyCwDoPT47712XWAJlHb2ec382XOY1tKMWfO+xMlgGVLzypKvflFcUT7oMzu4+xLwWbYj7rkW14nynbIy+lKDvZCQhfzG8jUXW7BetyIgH7i7u5OjPEimUw6jhrq6ECbdb4qOnPeeLZu2MaodFupvd5tJnKX6cV+eNBoF7dfJXEBYNJqeOAWP/Bupt66D0UGz6dAVU8hlH3PRoTk12Lmjd5KRXscWZamTFqI9nQEtErdccxoG25KnAgMBAAECggEBAIPz1b88ZTMtIgdejA7lH3Q4Nbn8gc1yRPSet3uBd/3rKT/IeMZBHQBzaqxgOgUIRV3n8nXsun6sf2b+IOjLlErimH2agnZMauL85YokH/g4QU6WZl9GXBf41xmMd3SsZ8AadaEBfYoXNqZcHtcLNogfFwvx5QRnD+A3SoRnH8OLBeVvOEe4AqHLT2xEZ9TeCf3fJe0Rf0fUIbw7I5ioiRZV/ir0L1VM7+1k2JODUkdC2Luj5Tl3nl1Eg6EmkYCmGE1bip1NAatsfjPBLMF7XdPNjLboiffjgKVBOjb7Y9vL18BCoLtWeTT2GkMpi5Sr94T1te1Ox77dF4BP33Xn7eECgYEA1TNUrAQsh14NbbkwFtUHXS8/YXt81p9wbSpFBymIawF2Lkk0913TB4CHSun45LhYXjdZZxK/TgqC5EIq5v2RA0jY3cSxoqVe6RZKB04E8wszeJHiEJPdu2vFnpZh9iAyhswiM5FmuKZKoWsVc2SZrBXAI02smSn3lXYok1VBS3sCgYEApXEZS6gjUu4o7ZL53Ur1HDfi/nxpkxqrPh+D1HVYjzjT+4vTeZwtLXt2VCInPWNXH+f11mzhxIrLkI0jMcSCah81DuU8aFXnqvPuyFvt9uaQBYlVWBtkcGZyeaxHFrbfCyeu0jm7SfwmiIg12hKlIHtPTjEZQUX+kkWr8cdaZ8UCgYEAh0Pl+K09QzVc97yC0jmeTnTnlYWvksvdnKUw3nZvYtSukndH75nLhfr524HOs+5xwnUDd+3hCjaJDSEd7yf5lUfmr+1XdoXNTb0igrfxU/JLWbfU4geuqnaaDyACTxHmfLePC4C413ZJ61fxaCDvjsrN+JgTZanGt0EcRT3WC3kCgYEAgf5/GMJxlw0JXbs515a5R8Xl9358Whj/at3KcRsPTeIiNqnkrc54dR9ol60KViMDZ0+VDDobn5pLXzZ26/jzXD1PLHgU4gp18Q6glhAdx/3cNm11gLhtUCA/XLlwVjm0wggZRpgUQIr/IBKe9c3mr8IUS2Uq6e38nKRf+adhst0CgYAM4tvl+U1MPbbz3YzDv8QPepZ7Pglgdfxqfr5OkXA7jNhqTZjSq10B6oClGvirBo1m6f26F02iUKk1n67AuiLlTP/RRZHi1cfq6P9IaXl23PcxJfUMvIxQDS0U+UTFpNXryTw/qNAkSfufN48YzKdGvc8vHrYJyaeemaVlbdJOCw==";
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//
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//
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// try {
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//
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// String data = "测试提交数据";
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//
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// byte[] publicEncryptBytes = RSAUtils.encryptByPublicKey(data.getBytes(), publicKey);
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// System.out.println("公钥加密后的数据：" + Base64.encodeToString(publicEncryptBytes, Base64.URL_SAFE | Base64.NO_WRAP));
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// byte[] privatDecryptBytes = RSAUtils.decryptByPrivateKey(publicEncryptBytes, privateKey);
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// System.out.println("私钥解密后的数据：" + new String(privatDecryptBytes));
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//
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//
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// System.out.println("--------------------");
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//
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// byte[] privateKeyEncryptBytes = RSAUtils.encryptByPrivateKey(data.getBytes(), privateKey);
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// System.out.println("私钥加密后的数据：" + Base64.encodeToString(privateKeyEncryptBytes, Base64.URL_SAFE | Base64.NO_WRAP));
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//
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// String singnData = RSAUtils.sign(data.getBytes(), privateKey);
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// System.out.println("私钥签名后的数据：" + singnData);
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//
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//
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// byte[] publicDecryptBytes = RSAUtils.decryptByPublicKey(privateKeyEncryptBytes, publicKey);
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// System.out.println("公钥解密后的数据：" + new String(publicDecryptBytes));
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//
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// boolean isSign = RSAUtils.verify(data.getBytes(), publicKey, singnData);
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// System.out.println("签名是否正确：" + isSign);
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//
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//
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// } catch (Exception e) {
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// e.printStackTrace();
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// }
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}
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/**
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* @param keySize 生成的秘钥长度 一般为1024或2048
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* @return
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* @throws Exception
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*/
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public static Map<String, Object> genKeyPair(int keySize) throws Exception {
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KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM);
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keyPairGen.initialize(keySize);
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KeyPair keyPair = keyPairGen.generateKeyPair();
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RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
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RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
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Map<String, Object> keyMap = new HashMap<String, Object>(2);
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keyMap.put(PUBLIC_KEY, publicKey);
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keyMap.put(PRIVATE_KEY, privateKey);
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// Log.d("DoggieX","publicKey：" + Base64.encodeToString(publicKey.getEncoded(), Base64.URL_SAFE | Base64.NO_WRAP));
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// Log.d("DoggieX","privateKey：" + Base64.encodeToString(privateKey.getEncoded(), Base64.URL_SAFE | Base64.NO_WRAP));
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Log.d("DoggieX","publicKey：" + Base64.encodeToString(publicKey.getEncoded(), Base64.NO_WRAP));
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Log.d("DoggieX","privateKey：" + Base64.encodeToString(privateKey.getEncoded(), Base64.NO_WRAP));
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return keyMap;
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}
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/**
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* 对已加密数据进行签名
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*
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* @param data 已加密的数据
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* @param privateKey 私钥
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* @return 对已加密数据生成的签名
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* @throws Exception
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*/
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public static String sign(byte[] data, String privateKey) throws Exception {
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byte[] keyBytes = Base64.decode(privateKey, Base64.URL_SAFE | Base64.NO_WRAP);
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PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
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KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
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PrivateKey privateK = keyFactory.generatePrivate(pkcs8KeySpec);
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Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);
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signature.initSign(privateK);
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signature.update(data);
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return Base64.encodeToString(signature.sign(), Base64.URL_SAFE);
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}
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/**
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* 验签
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*
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* @param data 签名之前的数据
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* @param publicKey 公钥
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* @param sign 签名之后的数据
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* @return 验签是否成功
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* @throws Exception
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*/
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public static boolean verify(byte[] data, String publicKey, String sign) throws Exception {
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byte[] keyBytes = Base64.decode(publicKey, Base64.URL_SAFE | Base64.NO_WRAP);
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X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
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KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
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PublicKey publicK = keyFactory.generatePublic(keySpec);
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Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);
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signature.initVerify(publicK);
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signature.update(data);
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return signature.verify(Base64.decode(sign, Base64.URL_SAFE));
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}
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/**
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* 用私钥对数据进行解密
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*
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* @param encryptedData 使用公钥加密过的数据
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* @param privateKey 私钥
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* @return 解密后的数据
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* @throws Exception
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*/
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public static byte[] decryptByPrivateKey(byte[] encryptedData, String privateKey) throws Exception {
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byte[] keyBytes = Base64.decode(privateKey, Base64.NO_WRAP);
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PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
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KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
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Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
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//Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
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Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding","BC");
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cipher.init(Cipher.DECRYPT_MODE, privateK);
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Log.d("DoggieX","provider:"+cipher.getProvider().getClass().getName());
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int inputLen = encryptedData.length;
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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int offSet = 0;
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byte[] cache;
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int i = 0;
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// 对数据分段解密
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while (inputLen - offSet > 0) {
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if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
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cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);
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} else {
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cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
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}
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out.write(cache, 0, cache.length);
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i++;
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offSet = i * MAX_DECRYPT_BLOCK;
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}
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byte[] decryptedData = out.toByteArray();
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out.close();
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return decryptedData;
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}
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/**
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* 公钥解密
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*
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* @param encryptedData 使用私钥加密过的数据
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* @param publicKey 公钥
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* @return 解密后的数据
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* @throws Exception
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*/
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public static byte[] decryptByPublicKey(byte[] encryptedData, String publicKey) throws Exception {
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byte[] keyBytes = Base64.decode(publicKey, Base64.URL_SAFE | Base64.NO_WRAP);
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X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
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KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
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Key publicK = keyFactory.generatePublic(x509KeySpec);
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Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
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cipher.init(Cipher.DECRYPT_MODE, publicK);
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int inputLen = encryptedData.length;
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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int offSet = 0;
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byte[] cache;
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int i = 0;
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// 对数据分段解密
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while (inputLen - offSet > 0) {
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if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
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cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);
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} else {
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cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
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}
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out.write(cache, 0, cache.length);
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i++;
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offSet = i * MAX_DECRYPT_BLOCK;
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}
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byte[] decryptedData = out.toByteArray();
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out.close();
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return decryptedData;
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}
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/**
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* 公钥加密
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*
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* @param data 需要加密的数据
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* @param publicKey 公钥
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* @return 使用公钥加密后的数据
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* @throws Exception
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*/
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public static byte[] encryptByPublicKey(byte[] data, String publicKey) throws Exception {
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byte[] keyBytes = Base64.decode(publicKey, Base64.NO_WRAP);
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X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
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KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
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Key publicK = keyFactory.generatePublic(x509KeySpec);
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// 对数据加密
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Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding","BC");
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cipher.init(Cipher.ENCRYPT_MODE, publicK);
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Log.d("DoggieX",cipher.getProvider().getClass().toString());
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int inputLen = data.length;
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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int offSet = 0;
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byte[] cache;
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int i = 0;
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// 对数据分段加密
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while (inputLen - offSet > 0) {
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if (inputLen - offSet > MAX_ENCRYPT_BLOCK) {
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cache = cipher.doFinal(data, offSet, MAX_ENCRYPT_BLOCK);
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} else {
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cache = cipher.doFinal(data, offSet, inputLen - offSet);
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}
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out.write(cache, 0, cache.length);
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i++;
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offSet = i * MAX_ENCRYPT_BLOCK;
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}
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byte[] encryptedData = out.toByteArray();
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out.close();
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return encryptedData;
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}
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/**
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* 私钥加密
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*
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* @param data 待加密的数据
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* @param privateKey 私钥
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* @return 使用私钥加密后的数据
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* @throws Exception
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*/
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public static byte[] encryptByPrivateKey(byte[] data, String privateKey) throws Exception {
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byte[] keyBytes = Base64.decode(privateKey, Base64.URL_SAFE | Base64.NO_WRAP);
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PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
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KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
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Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
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Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
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cipher.init(Cipher.ENCRYPT_MODE, privateK);
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int inputLen = data.length;
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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int offSet = 0;
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byte[] cache;
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int i = 0;
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// 对数据分段加密
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while (inputLen - offSet > 0) {
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if (inputLen - offSet > MAX_ENCRYPT_BLOCK) {
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cache = cipher.doFinal(data, offSet, MAX_ENCRYPT_BLOCK);
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} else {
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cache = cipher.doFinal(data, offSet, inputLen - offSet);
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}
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out.write(cache, 0, cache.length);
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i++;
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offSet = i * MAX_ENCRYPT_BLOCK;
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}
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byte[] encryptedData = out.toByteArray();
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out.close();
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return encryptedData;
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}
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/**
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* 获取私钥
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*
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* @param keyMap 生成的秘钥对
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* @return
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* @throws Exception
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*/
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public static String getPrivateKey(Map<String, Object> keyMap) throws Exception {
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Key key = (Key) keyMap.get(PRIVATE_KEY);
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return Base64.encodeToString(key.getEncoded(), Base64.URL_SAFE | Base64.NO_WRAP);
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}
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/**
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* 获取公钥
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*
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* @param keyMap 生成的秘钥对
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* @return
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* @throws Exception
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*/
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public static String getPublicKey(Map<String, Object> keyMap) throws Exception {
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Key key = (Key) keyMap.get(PUBLIC_KEY);
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return Base64.encodeToString(key.getEncoded(), Base64.URL_SAFE | Base64.NO_WRAP);
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}
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} |