Hi, I'm trying to develop a server (Java - Netty NIO Library + OpenSSL) / client (C + OpenSSL) applications.
A. I started off writing my server using Netty+OpenSSL and used some python scripts available in web (https://gist.github.com/takeshixx/10107280) to test whether TLS Heartbeat with OpenSSL is fine. Strangely I found that OpenSSL responds to heartbeat only if the length of TLSPlainText.length is greater than 4096. This I have observed from testing, yet to see the OpenSSL code which imposes this limitation. B. Then I started to write my client that uses SSL_heartbeat macro - but I didn't find any way to mention how much payload/padding to be used in the heartbeat message. I need clarity on 1. Whether the limitation observed in (A) above is correct? If so, is there any way to change it. 2. How to provide inputs like payload/padding to be used to work-around the limitation (A) ? Many thanks in advance, With regards, R Kaja Mohideen
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