static void testSign() throws Exception {
System.err.println("私钥加密——公钥解密");
String source = "这是一行测试RSA数字签名的无意义文字";
System.out.println("原文字：\r\n" + source);
byte[] data = source.getBytes();
byte[] encodedData = RSAUtils.encryptByPrivateKey(data, privateKey);
System.out.println("加密后：\r\n" + new String(encodedData));
byte[] decodedData = RSAUtils.decryptByPublicKey(encodedData, publicKey);
String target = new String(decodedData);
System.out.println("解密后: \r\n" + target);
System.err.println("私钥签名——公钥验证签名");
String sign = RSAUtils.sign(encodedData, privateKey);
System.err.println("签名:\r" + sign);
boolean status = RSAUtils.verify(encodedData, publicKey, sign);
System.err.println("验证结果:\r" + status);
}
