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</header>
<p>This document describes the changes made to the Crypto application.</p>
+<section><title>Crypto 4.0</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ LibreSSL can now be used by the modernized crypto app.</p>
+ <p>
+ Own Id: OTP-14247</p>
+ </item>
+ <item>
+ <p>
+ Add compile option <c>-compile(no_native)</c> in modules
+ with <c>on_load</c> directive which is not yet supported
+ by HiPE.</p>
+ <p>
+ Own Id: OTP-14316 Aux Id: PR-1390 </p>
+ </item>
+ </list>
+ </section>
+
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>
+ Add basic support for CMAC</p>
+ <p>
+ Own Id: OTP-13779 Aux Id: ERL-82 PR-1138 </p>
+ </item>
+ <item>
+ <p>
+ Removed functions deprecated in crypto-3.0 first released
+ in OTP-R16B01</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-13873</p>
+ </item>
+ <item>
+ <p>
+ The <c>crypto</c> application now supports OpenSSL 1.1.</p>
+ <p>
+ Own Id: OTP-13900</p>
+ </item>
+ <item>
+ <p>
+ Allow Erlang/OTP to use OpenSSL in FIPS-140 mode, in
+ order to satisfy specific security requirements (mostly
+ by different parts of the US federal government). </p>
+ <p>
+ See the new crypto users guide "FIPS mode" chapter about
+ building and using the FIPS support which is disabled by
+ default.</p>
+ <p>
+ (Thanks to dszoboszlay and legoscia)</p>
+ <p>
+ Own Id: OTP-13921 Aux Id: PR-1180 </p>
+ </item>
+ <item>
+ <p>
+ Crypto chacha20-poly1305 as in RFC 7539 enabled for
+ OpenSSL >= 1.1.</p>
+ <p>
+ Thanks to mururu.</p>
+ <p>
+ Own Id: OTP-14092 Aux Id: PR-1291 </p>
+ </item>
+ <item>
+ <p>
+ RSA key generation added to <c>crypto:generate_key/2</c>.
+ Thanks to wiml.</p>
+ <p>
+ An interface is also added to
+ <c>public_key:generate_key/1</c>.</p>
+ <p>
+ Own Id: OTP-14140 Aux Id: ERL-165, PR-1299 </p>
+ </item>
+ <item>
+ <p>
+ Raised minimum requeriment for OpenSSL version to
+ OpenSSL-9.0.8.c although we recommend a much higher
+ version, that is a version that is still maintained
+ officially by the OpenSSL project. Note that using such
+ an old version may restrict the crypto algorithms
+ supported.</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-14171</p>
+ </item>
+ <item>
+ <p>
+ Deprecate crypto:rand_uniform/2 as it is not
+ cryptographically strong</p>
+ <p>
+ Own Id: OTP-14274</p>
+ </item>
+ <item>
+ <p>
+ The Crypto application now supports generation of
+ cryptographically strong random numbers (floats &lt; 1.0
+ and integer arbitrary ranges) as a plugin to the 'rand'
+ module.</p>
+ <p>
+ Own Id: OTP-14317 Aux Id: PR-1372 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Crypto 3.7.4</title>
<section><title>Fixed Bugs and Malfunctions</title>