If we disable TLS 1.0 and added support for TLS 1.2 in project, will it stop working?
Because I am facing an issue we disable TLS 1.0 and TLS 1.2 is not working.
See also questions close to this topic
Ssl3 is still enabled on windows
Ssl3 is diabled on server and any request from client through Ssl3 channel should be refused.I disabled all ssl protocol on my client except Ssl3 but any request to server has response on browser .I'm using an asp mvc project to test that loaded by iis .Any ssl protocol is disabled in registery both client and server and system is restarted to apply changes.Is there any help ?
key exhange and hash function generation on OAuth 2.0 Mutual-TLS Client Authentication and Certificate-Bound Access Tokens
I have a system where two clients (A,B) ask and receive information from each other.
i am following mutual tls. In order to make this work, I am following this procedure
- First I create an authorization server and a CA to issue certificates
- Client and server must authenticate each other by presenting a x.509 certificate.
- Client ask an access token from the server in order to reach the client B and get back an information
- Server hashes the client A certificate and binds it into the access token
- Client then uses the certificate that presented in the server and the access token and then reach client b which also contain the protected resource
- Client B hashes the certificate and match it with the hash of the certificate contained in the access token
so I have the following questions
- How I build the authorization server?
- The ca must include inside the auth server or must be a different component?
- Client asks for the token during the handshake or on another call?
- The server hashes the certificate and binded to the token by using some keys?
- The client B hashes the certificate using some keys?
- When the client and the server exchange certificate signed from a CA, must first generates public keys and sent them to CA and so the latter can issue the token?
- I see that during handshake the client send the certificate to verify message in order to tell that he has the private keys. the server must not do the same procedure?
SSL TLS 1.2 wrong version number error between server and client IRC chat program in python
I am attempting to implement a basic irc chat server with secure SSL/TLS sockets and have kindof made a small testing program to just take care of the secure sockets but am having alot of issues understanding process. I currently am at the phase where I'm trying a few methods based on some other programs and I found something involving wrapping the socket and setting up the protocol that I'm intending to use (TLS1.2) As far as this program all I wanted to do was to get the connection and maybe send a couple random messages from the client to the server just to make sure it worked. I learned how to generate a self signed cert file, also kind of unsure if there were any particular parameters that were essential but it seems to work. The server side is as follows.
import socket import ssl def handle(client, address): while True: try: msg = client.recv(1024).decode() print(msg) except Exception as e: print(e) print("Client has quit the server unexpectedly") def recieve(): while True: clientsoc, addr = bindsoc.accept() sslsoc = context.wrap_socket(clientsoc, server_side=True) thread = threading.Thread(target=handle, args=(sslsoc, address)) thread.start() HOST = '' port = 6667 ADDR = (HOST, port) host = socket.gethostname() myIP = socket.gethostbyname(socket.gethostname()) print(myIP) print(port) context = ssl.SSLContext(ssl.PROTOCOL_TLSv1_2) context.load_cert_chain(certfile="cert.pem", keyfile="cert.pem") bindsoc = socket.socket(socket.AF_INET, socket.SOCK_STREAM) bindsoc.bind(ADDR) bindsoc.listen(5) print("Listening...") recieve()
The error I'm getting is a wrong version number error whenever I try to connect my basic client to the server. I was told that most of the heavy lifting of this handshaking process could be done from the client side by a friend so I have kept my client sockets as regular sockets for now but for reference ill show what the client side looks like.
import threading import socket import os import ssl def read(): while True: try: recMessage = client.recv(1024).decode() splitStream = recMessage.split("\r\n") for message in splitStream: print(message) except: print("Server connection has ended, exiting...") client.close() time.sleep(3) os._exit(0) def write(): client.send(socket.gethostname().encode()) while True: sendMessage = input() client.send(sendMessage.encode()) client = socket.socket(socket.AF_INET, socket.SOCK_STREAM) connected = False while connected != True: try: SERVER = input("Enter the IP of the server: ") port = int(input("Enter the port of the server: ")) client.connect((SERVER, port)) connected = True except: print("Connection failed...Try again") read_thread = threading.Thread(target=read) write_thread = threading.Thread(target=write) read_thread.start() write_thread.start() read_thread.join() write_thread.join()
I was planning to test through wireshark to make certain these sockets worked as intended once they are connected but haven't been able to figure out this whole handshaking thing. It seems very hard to me to find information on sockets that doesn't relate to connecting to websites.
How to disable TLS1 & TLS1.1 for glassfish 5.0.1 admin-listener (port 4848) from the command-line
How do I disable TLS1.0 & TLS1.1 for glassfish admin console(admin-listener, port 4848, jdk1.8.0_261)?
I don't want to disable it at server level (/usr/java/jdk1.8.0_261-amd64/jre/lib/security/java.security) as it may affect the applications running on it. Hence, I am looking for a way to disable TLS1.0 & TLS1.1 at listeners end.
When I try to disable it via command line, it throws the below error:
[root@appweb home]# /opt/glassfish5/glassfish/bin/asadmin set configs.config.server-config.network-config.protocols.protocol.admin-listener.ssl.tls-enabled=false Enter admin user name> admin Enter admin password for user "admin"> remote failure: No configuration found for configs.config.server-config.network-config.protocols.protocol.admin-listener.ssl Command set failed. [root@appweb home]#
Can we enable tls 1.0 on MSSQL Server 2019 on database level? if yes then how?
i am running sql server 2019 on Linux box and trying to connect using a Windows server 2016 client, how can we enable TLS 1.0 for SQL Server 2019 on the Database/instance level.