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<font face="Helvetica, Arial, sans-serif">> From: Henry Baker
<a class="moz-txt-link-rfc2396E" href="mailto:hbaker1@pipeline.com"><hbaker1@pipeline.com></a><br>
> Subject: [Cryptography] Security of a permute-only system?<br>
<br>
> Given a message source that's already "whitened", but
otherwise unencrypted,<br>
> how much security can be achieved strictly through an
unknown, but random<br>
> permutation?<br>
<br>
Here's a fellow that seems to be pursuing something along those
lines. His article plus his references might help.<br>
<br>
<span style="font-size: 10pt; color: black;"><a
href="https://eprint.iacr.org/2015/1033.pdf"><a class="moz-txt-link-freetext" href="https://eprint.iacr.org/2015/1033.pdf">https://eprint.iacr.org/2015/1033.pdf</a></a><br>
<br>
Grant Schultz</span></font><br>
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