17 Dec
2003
17 Dec
'03
11:17 p.m.
From: Ben.Goren@asu.edu Here's a solution: What problem, pray tell, does this solve? It seems far more complicated than it need be. Alice sends a file to Dave's DataHaven. When Alice wants her file back, she sends to Dave a secure hash of the file, a key with which to decrypt it, and a handful of plaintext at the beginning of the file. Dave decrypts the file that matches the hash with the key Alice gave him; if the file begins as Alice says it should, Dave returns the file to Alice. Eric