passphrases with more than 160 bits of entropy

[Joseph Ashwood]

----- Original Message ----- 
From: "Travis H." <solinym at gmail.com>
Subject: passphrases with more than 160 bits of entropy


> I was thinking that one could hash the first block, copy the
> intermediate state, finalize it, then continue the intermediate result
> with the next block, and finalize that.  Is this safe?  Is there a
> better alternative?

Use a bigger hash, SHA-512 should be good to basically 512-bits, same for 
Whirlpool. If those aren't enough for you, use the chaining mode from 
Whirlpool and Rijndael with appropriate size.
                Joe 



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