Generates the exemption mechanism key blob, and stores the result in the output buffer, starting at outputOffset inclusive.

If the output buffer is too small to hold the result, a ShortBufferException is thrown. In this case, repeat this call with a larger output buffer. Use engineGetOutputSize to determine how big the output buffer should be.

Parameters:

output		the buffer for the result
outputOffset		the offset in output where the result is stored

Returns:  the number of bytes stored in output

Exceptions:

ShortBufferException		if the given output buffer is too small to hold the result.
ExemptionMechanismException		if problem(s) encountered in the process of generating.