Clean up the helper programs. Remove the code to print the results, and
make sure that all helpers actually check the results against the correct
values.

Add some trivial tests for the in-kernel opencrypto framework, and link
them into the build. (Thanks to Matthias Drochner for the test programs!)

XXX The arc4 and null tests currently fail - under

Add some trivial tests for the in-kernel opencrypto framework, and link
them into the build. (Thanks to Matthias Drochner for the test programs!)

XXX The arc4 and null tests currently fail - under investigation.

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