我运行以下代码:
public class Sign {
private static final PrivateKey priv = Util.loadPrivate();
private static final PublicKey pub = Util.loadPublic();
private static final HexBinaryAdapter adp = new HexBinaryAdapter();
public static String sign(String in) {
try {
Signature sign = Signature.getInstance(Util.ALG);
sign.initSign(priv);
sign.update(in.getBytes());
return adp.marshal(sign.sign());
} catch (Exception e) {e.printStackTrace();}
return null;
}
public static boolean verify(String data, String sign) {
try {
Signature verify = Signature.getInstance(Util.ALG);
verify.initVerify(pub);
verify.update(data.getBytes());
return verify.verify(adp.unmarshal(sign));
} catch (Exception e) {e.printStackTrace();}
return false;
}
}
主函数如下所示:
public static void main(String[] args) {
String in = "lala";
String sign = Sign.sign(in);
System.out.println(sign);
System.out.println(Sign.verify(in, sign));
}
当我从 Eclipse 中运行它时一切都很顺利(输出为“true”),但是当我将它打包到 jar 中(没有 main 函数)并运行它时,输出为 false。
这是我加载 key 的方式:
public static PrivateKey loadPrivate() {
try {
URLConnection con = Util.class.getResource("private.key").openConnection();
byte[] bs = new byte[con.getContentLength()];
con.getInputStream().read(bs);
return KeyFactory.getInstance(ALG).generatePrivate(new PKCS8EncodedKeySpec(bs));
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public static PublicKey loadPublic() {
try {
URLConnection con = Util.class.getResource("public.key").openConnection();
byte[] bs = new byte[con.getContentLength()];
con.getInputStream().read(bs);
return KeyFactory.getInstance(ALG).generatePublic(new X509EncodedKeySpec(bs));
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
我检查并加载 key 工作正常。
有什么想法吗?
最佳答案
像这样运行:
java Main -classpath=/path/to/libraryk.jar
关于java - 使用 jar 文件中的代码时出现问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/5655876/