jsse

I want to initiate an SSL connection with a remote server using SSLv2. I am using Java. I tried to get the supported protocols in my socket using: String[] suppProtocols=socket.getSupportedProtocols(); System.out.println("The protocols supported for this socket are: "+Arrays.toString(suppProtocols)); and I got this in the output: [SSLv2Hello, SSLv3, TLSv1, TLSv1.1, TLSv1.2] Now, I read that Java does not support SSLv2 and SSLv2Hello only sends hello message using SSLv2. I can't grasp what does this means? Isn't the same as if the client support SSLv2? How can I make SSL connection using SSLv2.

I am writing an application that uses SSLEngine with NIO, I writing both the client and the server. The client is able to connect to the server and after he is connected i want him to be able to perform session resumption / renegotiation, but currently without luck.. As the code that uses the SSLEngine is pretty big (SSLEngine usage is SO complex!) i will write a simple pseudo code that demonstrate the situation: Server: global sslcontext initialized once await new client client.sslEngine = create new server ssl engine using the global sslcontext client.handleHandshake and wait for it to be

I am working on a java-project where I should implement the SSL-protokol on the server-side. Well, this is the first time I will use SSL in my application, so I read a lot about ssl/tls and now I want to implement something in java. I will implement this process using JSSE API: 1) client will connect to me 2) I will make authentification with my pubic key certificate. I means that I will send the client a public key and its corresponding certificate 3) the client encrypt the secret-key using my public key and RSA-algorithm and send it to me I have already the private key and certificate saved

原文地址: https://docs.oracle.com/javase/8/docs/technotes/guides/security/jsse/JSSERefGuide.html?spm=a2c4e.11153940.blogcont324371.10.68b578d3G07OBO 中英文对照: https://www.microsofttranslator.com/bv.aspx?to=zh-CHS&refd=www.translatoruser.net&r=true&a=https%3A%2F%2Fdocs.oracle.com%2Fjavase%2F8%2Fdocs%2Ftechnotes%2Fguides%2Fsecurity%2Fjsse%2FJSSERefGuide.html%3Fspm%3Da2c4e.11153940.blogcont324371.10.68b578d3G07OBO 本指南涵盖以下主题: 介绍 特点和好处 JSSE 标准 API SunJSSE 提供商 相关文档 JRE 安装目录 术语和定义 安全套接字层 (SSL) 协议概述 为什么使用 SSL？ SSL 的工作原理 JSSE 类和接口 核心类和接口 SocketFactory 和 ServerSocketFactory 类 SSLSocketFactory 和

Concerning SSLServerSocket.setWantClientAuth : If this is set to true if the client chooses to not send a certificate the negotiation continues. Also I noticed this also happens if the client sends a certificate but is not part of the truststore.The negotiation does not fail either in this case. So what is the use case of this setting? Bruno (Multiple edits, following a number of comments.) setWantClientAuth is used to request client certificate authentication, but keep the connection if no authentication is provided. setNeedClientAuth is used to request and require client certificate

I have read a related question already, but it doesn't seem to fail at the same place I am seeing a failure. I am trying a very simple operation: public static void main(String [] argv) { try { URL u = new URL("https://membership.usairways.com/Login.aspx"); Object o = u.getContent(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } But I get a handshake_failure when running that with Java 6, on both my Mac and Windows machines. Others keep having a problem with the certificate not being found, but the debug log ( -Djavax.net.debug=ssl

In working on a different problem (related to RMI), I upgraded the system's "security folder" with the "unlimited strength" policy files and now my applicaiton fails in a different way. I get a long stack dump, of which following bits appear pertinent: Exception in thread "main" java.lang.ExceptionInInitializerError [...crop...] Caused by: java.lang.SecurityException: Can not initialize cryptographic mechanism at javax.crypto.JceSecurity.<clinit>(JceSecurity.java:86) ... 17 more Caused by: java.lang.SecurityException: The jurisdiction policy files are not signed by a trusted signer! [...crop..

I am inspecting the behavior of our java application with respect to jsse tls encryption and decryption with a connected openssl client. First I observed that when I call unwrap for client data, it always unwraps consuming 37 bytes and producing 0. The next unwrap consumes some bytes and produces some. At first I thought the client would wrap an empty array first. But then I discovered that the jsse code does the same, except it produces 1 byte instead of 0. So every call to a wrap consumes X bytes and produces Y bytes but requires TWO unwrap s while the first one consumes 37 bytes and