Hi,

As tls 1.3 is being worked upon, older work like rfc 6520 and any enhancements 
to it may not be as important.

Also, particularly the TLS heartbeat feature, which has become famous for wrong 
reasons, is disabled by the SSL implementations eg OpenSSL.

I tried to uncover an issue below pertaining to the heartbeat messages here:

https://www.mail-archive.com/openssl-dev@openssl.org/msg47273.html

Experts struggle to find any significant use of this feature for both the TLS 
and DTLS. 

I am planning to propose enhancements which will include restricted issuance of 
the heartbeat requests (wrt size and frequency)  to avoid the exploit mentioned 
in the link above. A stronger standard will trigger bug/vulnerability free 
implementations. 

I would like to know if  enhancements to this rfc are welcomed or it is there 
to be abandoned completely? 

In other words, is it worth spending time?

Thanks
Jitendra





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