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An error occurred during a connection to www.esic.in. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: SSL_ERROR_NO_CYPHER_

Firefox Privacy and security
James replied
CMPandey
CMPandey

When I want to login on ESIC web site a message is showing every time : An error occurred during a connection to www.esic.in. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: SSL_ERROR_NO_CYPHER_OVERLAP

When I want to login on ESIC web site a message is showing every time : An error occurred during a connection to www.esic.in. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: SSL_ERROR_NO_CYPHER_OVERLAP

All Replies (2)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer

Oh, boy. An online service that analyzes secure connections sees numerous problems with that site, including:

  • The SSL certificate expired in February 2016
  • None of these browsers work with the limited set of ciphers offered by the server:
    • Firefox 47-49
    • Chrome 49 and 51
    • IE 11 or Microsoft Edge
    • Safari 10

https://www.ssllabs.com/ssltest/analyze.html?d=www.esic.in

They must know about this problem, right?!

James
James
  • Moderator
  • Top 10 Contributor

Normally this error occurs on a website that is outdated in still supporting RC4.

RC4 support has been completely removed in Firefox 50 as it is no longer able to be overridden. https://www.fxsitecompat.com/en-CA/docs/2016/rc4-support-has-been-completely-removed/

https://blog.mozilla.org/security/2015/09/11/deprecating-the-rc4-cipher/