Ignition Poker Ssl Handshake Failed

4/13/2022

How to fix the SSL / TLS handshake failed error? Is translated into the blog

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I've been testing primarily on my own phone (sony z3c) and started developing for 5.1. Later I received an update for 6.0 but still maintained a working 5.1 inside the emulator. Not too long ago, I started to work on an AVD with an image for 7.0 and to my suprise it won't connect to my server, telling me the ssl handshake failed. The server does not send any certificate in the ServerHello message; it sends certificates in the aptly-named Certificate message. As indicated in the standard, the server is supposed to send a complete, ordered chain of certificate, starting with the server's certificate proper, then a certificate for the intermediate CA that issued it, then a certificate for the intermediate CA that issued. I just downloaded Ignition Casinos poker lobby and it will not launch. It gives me the message 'There seems to be a temporary problem affecting the Poker client installation. Please try again in a few minutes. Sorry for any inconvenience caused. (SSL handshake failed)' Anybody have any suggestions on what I can try to resolve this?

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When a browser sends a secure request to a web server (such as APACHE), the SSL / TLS handshake process begins. SSL / TLS errors occur from time to time, among which the most common error isSSL Handshake Failed errorNext we will explain what SSL / TLS handshake failure is and how to solve it

Brief introduction of SSL / TLS handshake process

Before discussing the problem of TLS handshake failure, it is necessary to briefly describe the process of TLS handshake

When establishing a TLS encrypted connection, the client first sends a client Hello message to the server, which contains a random number generated by the client_ 1. Support ciphers and TLS version supported by the client;
When the server receives the request from the client, the random number random will be extracted from the client Hello message_ 1. Determine which encryption suite to use and regenerate it into a random number random_ 2, and send these information to the client in the server Hello message, and then the server will send its own certificate information to the client
After receiving the message and certificate from the server, the client will take out the random number random generated by the server_ The certificate issued by the server is sent to the CA list in the system for verification. After verification, the public key of the server is taken out from the certificate, and a random number is generated_ 3. Use the server’s public key to pair random_ 3 encryption to generate a key sent to the server
After receiving the key from the client, the server decrypts the key with its own private key and takes out the random number random_ Three
So far, both the client and the server have random_ 1, random_ 2, random_ Now as long as the three random numbers are encrypted according to the same encryption algorithm to generate a key, the server and the client will have the same key. In the subsequent connection, both the server and the client use this key to encrypt the information, and then the ciphertext can be transmitted through this symmetric encryption method
We can find that when the server and the client exchange random numbers, the server sends the public key to the client in the form of asymmetric encryption. When the server and the client get the same three random numbers, they generate the same key. After that, the communication is encrypted and decrypted by the key, and the symmetric encryption transmission is realized

Some causes of TLS handshake failure

From the above TLS handshake process, there are many reasons for TLS handshake failure. As long as there is a problem in one link of the handshake process between the client and the server, the TLS handshake may fail. The following summarizes some common problems of TLS handshake failure

reason	describe	Where to fix it
Inaccurate time system	The date or time of the client is not accurate	client
Browser error	Error caused by browser settings	client
intermediator	Connection is manipulated or hijacked by a third party	client
Protocol mismatch	The server does not support the protocol used by the client	Server
Encryption suite mismatch	The server does not support the encryption suite used by the client	Server
Server side enabled server name indication (SNI enabled)	Because SNI is enabled, the server cannot complete communication with the client	Server
Certificate error	< UL > < li > the domain name in the certificate does not match the domain name in the URL < / Li > < li > the certificate chain is incomplete or wrong < / Li > < li > TLS certificate is expired or revoked < / Li > < / UL >	Server

Next, let’s learn more about why the above causes TLS handshake failure and how to solve them

The problems and solutions brought by the client

Usually, the failure of TLS handshake is caused by the server and TLS configuration problems
At present, the most important reason is that the TLS configuration on the server does not support SSL 3.0. However, problems on the client side may also lead to TLS handshake failure. For example, some common client problems such as incorrect system time or browser update are likely to occur
Let’s explain some common client problems in detail

1. System time error

This usually doesn’t happen, but sometimes the system time doesn’t match the real time
The reason is that TLS authentication has a specific validity period, so wrong system time may lead to TLS handshake failure
If the failure of handshake is caused by incorrect display of system time, the solution is to correct the system time of computer

2. Browser error

Some browser (client) errors may cause TLS handshake failure. For example, some browser settings errors or plug-ins may cause errors when you visit legitimate websites. However, it is very difficult to locate and repair browser problems. The simplest way is to switch to other browsers to visit
If switching to another browser or TLS handshake fails, the problem is not caused by the browser itself. However, it may be caused by some plug-ins. Check which plug-ins are installed in your system that can affect multiple browsers. After closing them, restore the browser to the default settings and restart it. If there is any problem, it may be caused by other reasons

3. Middleman

Usually, man in the middle hijacking is a kind of criminal activity that tries to damage or steal user information. But it is not completely the case. Due to the reasons of checking or load balancing, many programs and devices will intercept the information first and then send it to the server, which is also known as man in the middle
These man in the middle devices sometimes cause TLS handshake failure. The reason may be that the connection is blocked by the network firewall, or the settings of other edge devices of the server network. In this case, the cause of the error may come from both the client and the server

If the problem comes from the client, you can connect by adjusting your system VPN, antivirus software and firewall settings
If the problem is caused by the server, it is mostly caused by the configuration of edge devices in the network

Problems caused by the server and Solutions

In most cases, the failure of TLS handshake is caused by server problems. Some problems are easy to solve, some problems are not easy to solve, and some problems are not worth solving
Let’s take a look at some common server-side problems

1. Protocol mismatch

This is an error that may occur on both the server and the client. It is necessary to determine whether to solve the problem according to the actual situation. Moreover, when the problem is related to encryption or protocol, the recommended solution is to update to the new version, rather than back to the old version

For example:

Although tls1.2 has been around for more than a decade, there are still a small number of websites that do not support it. As early as March 2018, the final version of tls1.3 was released on RFC 8446 by the IETF. It is recommended that all websites add support for tls1.3

Therefore, if the reason of TLS handshake failure is protocol mismatch, it is usually due to different TLS versions supported by server and client

For example:

The client supports tls1.0 and tls1.1, but the server only supports tls1.2

The above example is the TLS protocol mismatch. However, in this case, to fix this problem, it should not be the server to match the lower version of the protocol, but the client should upgrade to tls1.2 to match the server-side newer protocol. At present, our suggestion is that tls1.2 and tls1.3 protocols must be supported, and these two versions must be added to websites that are not yet supported

2. The encryption suite does not match

SSL / TLS / TLS can solve the problem by combining different algorithms

The encryption suite of tls1.3 has been further improved. Before that, the algorithm of encryption suite mainly includes the following functions:

Symmetric session key encryption
Asymmetric public key encryption
Certificate signature hashing
Key generation

In order to support a variety of encryption packages, different service organizations must support different encryption standards

This often happens in network connection. You try to establish a TLS connection with the server. There is an edge device (such as load balancing, reverse proxy, etc.) between the client and the server. This edge device receives and decrypts your HTTPS traffic, However, if the encryption suite between the edge device and the server does not match, an error will occur. Similar to the protocol version mismatch, when the encryption suite does not match, it is usually upgraded rather than degraded to solve the problem

Last but not least, abandoned protocol versions or cipher suites are usually due to security risks. Therefore, if you take a downgrade to solve such problems, it will reduce the security of the HTTPS connection

3. TLS / SSL certificate error

There are many reasons for the browser to determine that the TLS certificate is illegal, and then the browser will prevent the TLS handshake connection. In the next section, we will discuss the TLS handshake failure caused by such technical problems

Domain name mismatch: the website domain name does not match the certificate
Incorrect certificate chain: Intermediate Certificate missing in certificate chain
Certificate expiration or revocation: the server uses an untrusted, expired, or revoked TLS certificate
Use self signed certificate: use self signed certificate or internal network path confusion

4. Domain name error

In the past, there was a problem between the non www domain name and the WWW domain name of a website, but later the certification authority allowed a certificate to issue multiple sub domain names (SANS), which has almost solved this problem. The best way to deal with the domain name error of a certificate is to issue a new certificate or use a wildcard certificate

5. The certificate chain is not correct

SSL / TLS and PKI trust models usually rely on the root program, which is a collection of trusted CA root certificates stored on the computer system. Some of the root programs are:

Mozilla root program used by Firefox browser
Google root program used by Android system
Apple root program used in IOS and MacOS system
Microsoft root program used in Windows system

CA root program is very important. Although it does not issue certificates directly, certificate authority will use intermediate root certificate to issue TLS leaf certificate used by end users. This is the operation mode of certificate chain. CA root certificate is used to issue intermediate root, intermediate root is used to issue other intermediate root, and finally to TLS leaf certificate of end user

Whenever a browser receives a TLS certificate, it will check the authenticity of its signature. Verify its digital signature in the middle root that issued the certificate, and then take the digital signature of the intermediate root to the intermediate root that issued it. In this way, it will be traced back to a trusted CA root certificate

Therefore, no matter what the reason is that the verification process can not be carried out completely, even if the browser just can not locate one of the intermediate roots, it will lead to the failure of TLS handshake
The solution is to install the missing intermediate certificate. The missing intermediate certificate can be found on the CA website where you purchased the TLS certificate

6. Certificate expired or cancelled

At present, the maximum validity period of TLS certificate is 2 years. Therefore, if your certificate is expired or cancelled for some reason, it will lead to the failure of TLS handshake. The solution is to purchase and install a legal certificate again

7. Use self signed certificates

If your website exposed on the public network uses a self signed certificate, this is not trusted and will lead to an error. To solve this problem, you need to go to a trusted CA to re sign a TLS certificate

8. Enable SNI enabled

Usually, this is an internal problem between server devices, but sometimes a TLS handshake error may occur when a client who does not turn on SNI accesses a server with SNI enabled

To solve this problem, you must determine the host name and port number of the server, and also verify that the server has enabled SNI authentication and that the server has passed all the necessary information

summary

Usually, website administrators don’t need to make any changes, but if they encounter such problems, they can’t be ignored. Although sometimes the problems are caused by the client, as mentioned in the article, most of them are caused by the server

So, if you’re just an ordinary user, there’s a limit to what you can do. The best way is to report the problem to the webmaster and wait for them to fix it

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