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</header>
<p>This document describes the changes made to the SSL application.</p>
+<section><title>SSL 9.3.5</title>
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>
+ Enhance error handling for erroneous alerts from the
+ peer.</p>
+ <p>
+ Own Id: OTP-15943</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.3.4</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Fix handling of certificate decoding problems in TLS 1.3
+ similarly as in TLS 1.2.</p>
+ <p>
+ Own Id: OTP-15900</p>
+ </item>
+ <item>
+ <p>
+ Hibernation now works as expected in all cases, was
+ accidently broken by optimization efforts.</p>
+ <p>
+ Own Id: OTP-15910</p>
+ </item>
+ <item>
+ <p>
+ Fix interoperability problems with openssl when the TLS
+ 1.3 server is configured wirh the option
+ signature_algs_cert.</p>
+ <p>
+ Own Id: OTP-15913</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.3.3</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Correct handshake handling, might cause strange symptoms
+ such as ASN.1 certificate decoding issues.</p>
+ <p>
+ Own Id: OTP-15879 Aux Id: ERL-968 </p>
+ </item>
+ <item>
+ <p>
+ Fix handling of the signature_algorithms_cert extension
+ in the ClientHello handshake message.</p>
+ <p>
+ Own Id: OTP-15887 Aux Id: ERL-973 </p>
+ </item>
+ <item>
+ <p>
+ Handle new ClientHello extensions when handshake is
+ paused by the {handshake, hello} ssl option.</p>
+ <p>
+ Own Id: OTP-15888 Aux Id: ERL-975 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.3.2</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Returned "alert error string" is now same as logged alert
+ string</p>
+ <p>
+ Own Id: OTP-15844</p>
+ </item>
+ <item>
+ <p>
+ Fix returned extension map fields to follow the
+ documentation.</p>
+ <p>
+ Own Id: OTP-15862 Aux Id: ERL-951 </p>
+ </item>
+ <item>
+ <p>
+ Avoid DTLS crash due to missing gen_server return value
+ in DTLS packet demux process.</p>
+ <p>
+ Own Id: OTP-15864 Aux Id: ERL-962 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.3.1</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Missing check of size of user_data_buffer made internal
+ socket behave as an active socket instead of active N.
+ This could cause memory problems.</p>
+ <p>
+ Own Id: OTP-15825 Aux Id: ERL-934, OTP-15823 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.3</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ The distribution handshake with TLS distribution
+ (<c>inet_tls_dist</c>) does now utilize the socket option
+ <c>{nodelay, true}</c>, which decreases the distribution
+ setup time significantly.</p>
+ <p>
+ Own Id: OTP-14792</p>
+ </item>
+ <item>
+ <p>
+ Correct shutdown reason to avoid an incorrect crash
+ report</p>
+ <p>
+ Own Id: OTP-15710 Aux Id: ERL-893 </p>
+ </item>
+ <item>
+ <p>
+ Enhance documentation and type specifications.</p>
+ <p>
+ Own Id: OTP-15746 Aux Id: ERIERL-333 </p>
+ </item>
+ </list>
+ </section>
+
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>
+ TLS-1.0, TLS-1.1 and DTLS-1.0 are now considered legacy
+ and not supported by default</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-14865</p>
+ </item>
+ <item>
+ <p>
+ Use new logger API in ssl. Introduce log levels and
+ verbose debug logging for SSL.</p>
+ <p>
+ Own Id: OTP-15055</p>
+ </item>
+ <item>
+ <p>
+ Add new API function str_to_suite/1, cipher_suites/3
+ (list cipher suites as rfc or OpenSSL name strings) and
+ suite_to_openssl_str/1</p>
+ <p>
+ Own Id: OTP-15483 Aux Id: ERL-924 </p>
+ </item>
+ <item>
+ <p>
+ Basic support for TLS 1.3 Server for experimental use.
+ The client is not yet functional, for more information
+ see the Standards Compliance chapter of the User's Guide.</p>
+ <p>
+ Own Id: OTP-15591</p>
+ </item>
+ <item>
+ <p>
+ Add support for PSK CCM ciphers from RFC 6655</p>
+ <p>
+ Own Id: OTP-15626</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.2.3.5</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Handling of zero size fragments in TLS could cause an
+ infinite loop. This has now been corrected.</p>
+ <p>
+ Own Id: OTP-15328 Aux Id: ERIERL-379 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.2.3.4</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Hibernation now works as expected in all cases, was
+ accidently broken by optimization efforts.</p>
+ <p>
+ Own Id: OTP-15910</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.2.3.3</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Correct handshake handling, might cause strange symptoms
+ such as ASN.1 certificate decoding issues.</p>
+ <p>
+ Own Id: OTP-15879 Aux Id: ERL-968 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.2.3.2</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Returned "alert error string" is now same as logged alert
+ string</p>
+ <p>
+ Own Id: OTP-15844</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
+<section><title>SSL 9.2.3.1</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Correct solution for retaining tcp flow control OTP-15802
+ (ERL-934) as to not break ssl:recv as reported in
+ (ERL-938)</p>
+ <p>
+ Own Id: OTP-15823 Aux Id: ERL-934, ERL-938 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>SSL 9.2.3</title>
<section><title>Fixed Bugs and Malfunctions</title>