Sorry, I didn’t see this post until now.
Creating bitmaps can be done in various ways. Most programs that will accept RAW you just import as a raw file and describe it to the program, such as 8 bit mono (would be 1 byte per pixel) or raw rgb would be 3 bytes per pixel (in rgb format).
Photoshop, the gimp, these programs should work fine.
For the easy button you can just use imagemagick which is available on most Linux platforms.
First the image size; lets say we want a 640×480 image. Thats 640×480 bytes, now if we want it in rgb format, thats 640x480x3.
So using your calculator (or bc on the commandline)
you can do
echo “640x480x3″ | bc
The response is 921600
So we need 921600 bytes to make a 640×480 image in rgb format.
Capture using ‘dd’
dd if=/dev/TrueRNG of=/tmp/image.raw bs=921600 count=1 iflag=fullblock
(iflag=fullblock is important)
This will capture 921600 bytes in the file /tmp/image.raw
Now using ‘convert’ from imagemagick
convert -depth 8 -interlace plane -size 640×480 rgb:/tmp/image.raw /tmp/image.jpg
Now we have a 640×480 jpeg of random rgb values.
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For audio you can do similar things like using the program audacity you can import the audio as raw, and specify how many channels and bit depth. Same as the image, if you wanted 16khz audio 2 channels, you need 16k*2 bytes per second of audio.
You can also do funny things like catting /dev/TrueRNG to /dev/audio or piping it into sox or aplay to play the audio. Sox will accept raw input and convert to wav files based on your parameters.
Hope this helps
