TEA and XTEA are really, really simple and XTEA is resonably secure. <br>XXTEA &amp; Block TEA have weaknesses, but XTEA should be simple enough &amp;<br>fast enough for an embedded system. <br>Good Luck,<br>&nbsp;-- Sztefan<br>
<br><a href="http://en.wikipedia.org/wiki/XTEA">http://en.wikipedia.org/wiki/XTEA</a><br><a href="http://en.wikipedia.org/wiki/Tiny_Encryption_Algorithm">http://en.wikipedia.org/wiki/Tiny_Encryption_Algorithm</a><br><br><div>
<span class="gmail_quote">On 10/4/06, <b class="gmail_sendername">Steve Simon</b> &lt;<a href="mailto:steve@quintile.net">steve@quintile.net</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I ask here as those who read this list have an understanding of the word simple.<br><br>I am after some very simple public key encryption code which I intend to use to<br>encrypt the md5 of a license file on an embedded system - so in needs to be
<br>really small and simple.<br><br>I am tempeted to use the plan9 RSA code, but is there somthing else even simpler<br>about? Perhaps less secure than RSA but stronger than a password embedded in<br>the code, XORed with 0xdeadbeef :-)
<br><br>Anyone seen anything on the net?<br><br>-Steve<br></blockquote></div><br><br clear="all"><br>-- <br>If work and leisure are soon to be subordinated to this one utopian principle -- absolute busyness -- then utopia and melancholy will come to coincide: an age without conflict will dawn, perpetually busy -- and without consciousness.
<br><br> -- Günter Grass