Cryptanalysis and protocol failures (abstract)
Gustavus J. Simmons · 1993
In this lecture examples will be given of key distribution protocols that distribute keys to unintended recipients, secrecy protocols that publicly reveal the contents of (supposedly) secret communications, digital signature protocols that make forgery easy — all based on cryptoalgorithms that are sound so far as is known. In at least one case the cryptographic algorithm that is employed is Vernam encryption/decryption with a properly chosen one time key which is well known to be unconditionally secure; in spite of which the protocol fails totally.