On Thu, 2 Jun 1994, Peter Wayner wrote:
Please explain how to forge the LEAFs. I presume that this doesn't involve super-encryption.
Here is what the article on the upper right hand side of this morning's New York Times says: "To defeat the system, Dr. Blaze programmed a 'rouge' unit to test thousands of LEAF's. Once he found a valid key, he inserted it in place of the one that would be generated by the Clipper device. Later, if law enforcement officials attempted to use it for decoding, it would not unlock this particular message." He was able to find LEAF's that passed checksum in spite of having an invalid session-key number. If generating these things takes a lot of computing power, maybe we could come up with a distributed processing project like RSA 129 was cracked by. DCF