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	<title>ETF2L &#8211; Latest activity in &#8220;audio encryption&#8221;</title>
	<link>https://staging.etf2l.org/forum/support/topic-20364/</link>
	<description><![CDATA[The latest posts to this topic.]]></description>
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    	    <title>Reply by EXM</title>
    	    <link>https://staging.etf2l.org/forum/support/topic-20364/page-1/?recent=367803#post=367803</link>
    	    <description><![CDATA[That may be a little bit too hardcore, since most of my friends don't even know what bits are :D
What I want is making the audio file sound something similar to sstv, i.e. full of random sounds, but reversable back to normal sound in a simple way (it would be best if that could be done online, without the need of downloading special software).
I think I just should do a reverse sstv (give a picture, which then can be converted to sound). Is that even possible? I want a short speech (not beeping) to be converted to a sstv picture.]]></description>
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    	    <pubDate>Sun, 19 Feb 2012 10:24:36 +0100</pubDate>
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    	    <title>Reply by Dr. Chris</title>
    	    <link>https://staging.etf2l.org/forum/support/topic-20364/page-1/?recent=367803#post=367789</link>
    	    <description><![CDATA[Audio scrambling and audio encryption are two completely separate concepts, I'm assuming you really mean "audio encryption".

Just do bitwise operations on it, should confuse most people not familiar with binary digits; then you have the benefit of having an easily reversable process that on first glance doesn't look intelligible (warning, if you have a predictable header, like most audio formats, it may give away how the file has been manipulated), but it pretty much fits your requirements.

Obviously it is an insult to call this encryption, so don't do it for anything serious, anyone even basically experienced in cryptography will crack it in no time once they know what you have done.

Perhaps if you have two clues, do bit operations against each other, and then release only one of the files. If you use non-destructive methods that don't result in exceeding the buffer size, it will be possible to retrieve one file by using the other one that is publically available.]]></description>
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    	    <pubDate>Sun, 19 Feb 2012 01:15:56 +0100</pubDate>
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    	<item>
    	    <title>Created by EXM</title>
    	    <link>https://staging.etf2l.org/forum/support/topic-20364/page-1/?recent=367803#post=367788</link>
    	    <description><![CDATA[Hi!

Maybe someone could direct me to an easy to use audio scrambling/encryption program or better yet, online site which would do that?
Just to be a little bit more clear, I have an audio file (a short one ~30s), which I want to scramble or encrypt. Nothing hardcore, so anyone without a PhD in computer science could break it with a little direction. I need this for a tiny, ARG-like project of mine :)]]></description>
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    	    <pubDate>Sun, 19 Feb 2012 01:05:37 +0100</pubDate>
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