random idea

Wednesday, February 20. 2008

nez a ir hex strings kam md5 ir pats strings

tjipo 0d1f2cf7503dc5f67b643b537abf265d== md5(0d1f2cf7503dc5f67b643b537abf265d);
piemeers protams nepareizs

Posted by vdl in ideas at 12:55 | Comments (10)

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Zibenstaka iedvesmai:
http://www.win.tue.nl/hashclash/Nostradamus/

#1 Ivars (Homepage) on 2008-02-20 16:28 (Reply)

Tikai 1'208'925'819'614'629'174'706'176 md5 kalkulācijas

vai arī var mēģināt pierādīt/apgāzt ar formulu palīdzību.

#2 aiksa on 2008-02-21 11:02 (Reply)

nu es arii par formulu domaaju - jaapiekjeraas kaadaa briidii klaat. jo itkaa nav tik sarezhgjiiti itkaa

#2.1 vdl on 2008-02-21 11:11 (Reply)

vareetu jau meegjinaat seno ideju ar useru kastu izmantoshu cherez flash/java webaa

#2.2 vdl on 2008-02-21 11:41 (Reply)

Emm

Tu vēl tādu neideju atceries?.
Vispār jau mierīgi: flešā (arī atceries?) toch bija md5 biblotēkas.

#2.2.1 aiksa on 2008-02-21 15:41 (Reply)

nē, nekāds mierīgi.
10 rindu pitona skripts (ātri modeli uzmetu) grieztos 230008717582 gadus

#2.2.2 aiksa on 2008-02-21 15:54 (Reply)

a kur tev taads cipars sanaaca - es pareekjinaaju man sanaaca veel ahujenna daudz vairaak variaacijas. alja md5 outputo 128bit valui. sanaak 2^128 variantu hashiem. tos vajaga paarbaudiit ja nevisus tad vismaz dalju.

#2.2.2.1 vdl on 2008-02-21 15:59 (Reply)

hexota hash garums:
- 32 simboli
- katrs simbols var pieņemt vērtību (0-9) un no (a-f) tātad 16 dažādas vērtības (tāpēc jau arī hex.)

tātad kopējais iespējamo kombināciju skaits 32^16 -> 1208925819614629174706176

Uz mana necilā ēzelīša 10'000'000 md5i rēķinās 37 sekundēs. No turienes ar tāds skaitlis.

#3 Anonymous on 2008-02-21 16:38 (Reply)

gadienaa tomeer ne 16^32 ?

#3.1 vdl on 2008-02-21 16:48 (Reply)

mņa. my bad.
16^32 ir identisks tavējam skaitlim.

#3.1.1 aiksa on 2008-02-21 16:55 (Reply)

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