Re: Making a weak Hash stronger until a fix comes along -- concatenation of hash functions...

To answer the original poster's question, no, it's not particularaly
secure. I can't find it right now, but when this was asked previously,
someone pointed to a clever proof that concatenating two different
hashes in the same family (eg, SHA1 and MD5) adds far less security
than you'd expect - certainly not the 160+128 that casual inspection
determines.
Received on Thu Sep 29 21:57:53 2005