implements decryption algorithm, but still does not pass the test.
completes and corrects implementation of encryption and decryption, offering two alternatives of each: one following the papers straighforwardly, that multiplies the plaintext (resp, the ciphertext) by the blinding factor, in GT; and another following the example implementation in fuzzy.cpp that exors the plaintext (ciphertext) interpreted as a Big in base 256 with the hash of the blinding factor. All tests pass.
refactores encryption and decryption to extract repeated code. Restores the full test suite for KPABE.