Re: Inverse Hash Function
From: Valery Pryamikov (Valery_at_nospam.harper.no)
Date: 12/30/04
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Date: Thu, 30 Dec 2004 12:18:10 +0100
"Henrick Hellström" <henrick.hellstrm@telia.com> wrote in message
news:ScRAd.12515$d5.108371@newsb.telia.net...
> Valery Pryamikov wrote:
>
>> If you are only interested in collision resistant, but not one way hash -
>> you can find such scheme.
>>
>> Preimage resistance is not possible due to your requirement (h(h'(B))=B
>>
>>
>>
>> BTW: here is a simple scheme that satisfies your condition:
> [snip]
>> (classic RSA).
>
> Classic RSA is not collision resistant. A,A+m is a collision.
yep, that's right.
-Valery
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