On Mar 4, 2008, at 8:43 PM, erik quanstrom wrote:
On Mar 4, 2008, at 8:00 PM, Enrico Weigelt wrote:
some thoughts about venti that go around in my mind:
1. how stable is the keying ? sha-1 has only 160 bits, while
data blocks may be up to 56k long. so, the mapping is only
unique into one direction (not one-to-one). how can we be
*really sure*, that - even on very large storages (TB or
even PB) - data to each key is alway (one-to-one) unique ?
http://www.nmt.edu/~val/review/hash/index.html
Not that this analysis is without flaws, though.
have you invented the 9fans.net effect?
Meaning? I guess the reference went over my head.
this link may or may not be similar. but it is on point:
http://www.valhenson.org/review/hash.pdf
I believe it to be exactly the same paper.
do you care to elaborate on the flaws of this analysis?
I tend to agree with counter arguments published here:
http://monotone.ca/docs/Hash-Integrity.html
I'm not an expert in this field (although I dabbled
in cryptograhy somewhat given my math background) and
thus I would love if somebody can show that the
counter arguments don't stand.
Thanks,
Roman.
