Java加密算法AES与RSA(2)

public static void test1() throws Exception { KeyPair keyPair = RSAUtil.generateKeyPair(); RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic(); RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate(); // 明文 String text = "hello , AES"; // 公钥加密明文-->密文 byte[] encrypted = RSAUtil.encrypt(text.getBytes(), publicKey); // 私钥解密密文-->明文 byte[] decrypted = RSAUtil.decrypt(encrypted, privateKey); System.out.println(new String(decrypted, CharsetConstants.UTF_8)); } public static void test2() throws Exception { KeyPair keyPair = RSAUtil.generateKeyPair(); RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic(); RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate(); // 明文 String text = "hello , AES"; PublicKey publicKey2 = RSAUtil.getPublicKey(publicKey.getModulus(), publicKey.getPublicExponent()); // 公钥加密明文-->密文 byte[] encrypted = RSAUtil.encrypt(text.getBytes(), publicKey2); PrivateKey privateKey2 = RSAUtil.getPrivateKey(privateKey.getModulus(), privateKey.getPrivateExponent()); // 私钥解密密文-->明文 byte[] decrypted = RSAUtil.decrypt(encrypted, privateKey2); System.out.println(new String(decrypted, CharsetConstants.UTF_8)); } public static void test3() throws Exception { KeyPair keyPair = RSAUtil.generateKeyPair(); PublicKey publicKey = RSAUtil.getPublicKey(keyPair.getPublic().getEncoded()); PrivateKey privateKey = RSAUtil.getPrivateKey(keyPair.getPrivate().getEncoded()); // 明文 String text = "hello , AES"; // 公钥加密明文-->密文 byte[] encrypted = RSAUtil.encrypt(text.getBytes(), publicKey); // 私钥解密密文-->明文 byte[] decrypted = RSAUtil.decrypt(encrypted, privateKey); System.out.println(new String(decrypted, CharsetConstants.UTF_8)); }