One of the more common SSL error messages that one encounters when working with SSL is the SSL_ERROR_NO_CYPHER_OVERLAP. When this error occurs, one must be able to determine what the cause is of SSL_ERROR_NO_CYPHER_OVERLAP. In most cases, the SSL_ERROR_NO_CYPHER_OVERLAP problem is not the fault of the actual SSL server. But it is usually related to the way that a client or server handles SSL_OPT_NULL_WITH_CIPHER requests. In this case, for fixing this problem, disable the option of SSL_OPT_NULL_WITH_CIPHER on the SSL Server-side. In addition to this add an SSL_VERIFY_PEER_CONFIG environment variable to server, which will prevent any client from accessing a server which does not have an SSL_VERIFY_PEER_CONFIG environment variable enabled.
However, when many websites use different protocols and tools for SSL certificates. Some of these tools contain certificates, necessary for a client to connect to a specific site. Sometimes, SSL Error No Cypher Overlap occurs due to the SSL certificate; or when a digital signature is not present in the web browser’s cache; which is often the case when using a shared or open-source browsers such as Mozilla Firefox, Internet Explorer and Opera.
As a result, the server will require a client to insert the certificate into the browser’s cache before the client can proceed with the SSL transaction. However, this can cause an SSL connection to be broke if the client is trying to access a site that uses an older version of the browser, which does not support the newer versions of the browser.
Moreover, to prevent this type of SSL error from occurring in the first place, one must ensure that the client and the server both have an updated copy of the Certificate Signing Certificate for their specific sites. This will ensure that both the client and the server are safe against any errors that could cause the client to have a broken SSL connection. When a client tries to connect to a site that is using an older browser, that does not have the latest versions of all of the browser software. They could experience the SSL_ERROR_NO_CYPHER_OVERLAP error message. If the SSL connection is not successful, the client will be forced to contact the web host to get the SSL certificate or a digital signature.
The web host is the entity that maintains the SSL certificate, and contains all of the public keys, used for the authentication between the client and the server. However, after the installation of SSL certificate on the web host, then the SSL server will take control of the whole process SSL transaction.
After all of the necessary SSL processing has taken place, and the client will then be able to see the digital signature used in the certificate. If the certificate’s digital signature is not available, the client will need to contact the SSL server to get the missing digital signature. The server will then take over the SSL transaction, and the client will be able to proceed with the SSL negotiation process. If this is the first time you have encountered this error message, the server will send out an email or text message to the client containing instructions on what they should do to fix the SSL error.
The messages can help provide the client with some of the information they need to complete the SSL negotiation process and know how to troubleshoot this problem. However, suppose the client does not receive any instructions from the web server and still gets the error message. In that case, the next step in troubleshooting the SSL error is to check the client’s configuration settings SSL_VERIFY_PEER_CONFIG environment variable, which should be appropriately configured. In case if it has not been configured correctly, then it could be causing the SSL error.
Moreover, if the variable is configured correctly, the client should receive the digital signature for the SSL certificate, which is required for the SSL transaction. If the error message cannot be repaired, and the client is still experiencing problems with the SSL process, they may need to consider purchasing an SSL certificate.
SSL certificates from trusted vendors make sure clients’ websites are protected against the security flaw and ensure that they can make business transactions through the secure tunnel without worrying about having to re-verify their SSL certificates. Suppose there is no way to repair the SSL connection. In that case, the client may want to consider purchasing a domain name that will have a different SSL certificate placed under that domain name to have their SSL verification process protected.