I&#39;ve used this wrapper around the NaCl crypto library to generate random numbers:<div><br></div><div><a href="http://thoughtpolice.github.io/salt/">http://thoughtpolice.github.io/salt/</a></div><div><br></div><div><br></div><div>Nick</div><div><div><br>On Sunday, October 5, 2014, Bardur Arantsson &lt;<a href="mailto:spam@scientician.net">spam@scientician.net</a>&gt; wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
I&#39;m in a situation where I have to generate cryptographically secure<br>
random UUIDs, i.e. ones that cannot feasibly be guessed/predicted.<br>
<br>
Does anyone know what options there are in this space?<br>
<br>
Ideally, I&#39;d like to fulfill as many of these points as possible:<br>
<br>
- Few big/complicated dependencies.<br>
- Avoid native C if possible (ditto for non-base dependencies).<br>
- Avoid RDRAND if possible.<br>
- Non-opaque UUID type.<br>
- Cross-platform if possible, but the main platform would be Linux.<br>
<br>
(Generating a UUID from a random stream would be trivial, so obviously a<br>
library for secure random numbers would be a-okay too.)<br>
<br>
Any suggestions?<br>
<br>
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</blockquote></div></div>