Re: [openpgp] Fingerprints and their collisions resistance

Hi Andrey,

On Thu, Jan 03, 2013 at 03:30:14PM -0800, Andrey Jivsov wrote:
> Instead of 80 bit is security (birthday 
> bounds) SHA-1 is listed as 51 bits on 
> http://en.wikipedia.org/wiki/Message_digest.
Since you mention the 51 bits part again and again ...

Do you have any data / research underpinning this 51 (Besides
Wikipedia)?

After all, the cited Wikipedia page links to the retracted variant of
an article :-(

Otherwise, the best /theoretical/ result that I know of is just
above 60.


Best regards,
Christian



-- 
---- quelltextlich e.U. ---- \\ ---- Christian Aistleitner ----
                           Companies' registry: 360296y in Linz
Christian Aistleitner
Gruendbergstrasze 65a        Email:  christian(_at_)quelltextlich(_dot_)at
4040 Linz, Austria           Phone:          +43 732 / 26 95 63
                             Fax:            +43 732 / 26 95 63
                             Homepage: http://quelltextlich.at/
---------------------------------------------------------------

signature.asc
Description: Digital signature

_______________________________________________
openpgp mailing list
openpgp(_at_)ietf(_dot_)org
https://www.ietf.org/mailman/listinfo/openpgp