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+--- Thread: cryptography (/Thread-cryptography--40606)
RE: cryptography - Solixious - 04-02-2012
About hashes : it is a set of working algorithm on some particular input text which results in a creation of a string of a particular length (in bits) called hash. We cannot get back the original text from the resultant hashes by reversing the hash process. That is the place where it differs from encryption since encryptions can be decrypted with proper key.
RE: cryptography - chipp - 04-02-2012
btw, the list of websites using hash? for an attacker, how to get the exact hash value? if we're using brute force, i guess that will required a lots of time and resources... btw, study case?
RE: cryptography - Solixious - 04-02-2012
(04-02-2012, 04:19 PM)chipp Wrote: btw, the list of websites using hash? for an attacker, how to get the exact hash value? if we're using brute force, i guess that will required a lots of time and resources... btw, study case?
According to my knowledge, all the passwords of any website are stored as a hash. To get the exact hash value, an attacker has to hack the website database and download the information. Brute forcing is a very bad idea. It has extremely less chances of success online unless the security is very poor..
What case study are you asking for?
RE: cryptography - chipp - 04-06-2012
study case about cracking hash value in some site...
RE: cryptography - Solixious - 04-06-2012
I'm not sure what exactly you want to know. Maybe this will help..
http://www.unixwiz.net/techtips/iguide-crypto-hashes.html
RE: cryptography - Frooxius - 04-09-2012
(04-02-2012, 05:14 PM)SolitaryOne Wrote: According to my knowledge, all the passwords of any website are stored as a hash.
You wish... That happens only in an ideal world. Actually no, in an ideal world, we wouldn't need to have passwords to begin with.
A lot of poorly designed information systems (which includes websites) store passwords in plaintext in the database, so anyone can read them anytime and once someone bad gets the password, nothing stops him from misusing it, maybe a conveniently timed spontaneously created blackhole next to his person, but how many of these do you see?
RE: cryptography - Justice_mybb_import8175 - 04-09-2012
To uncover a incrypted password you have to look at the scrambled letters and rearange the numbers
RE: cryptography - eastman47 - 04-09-2012
nice i love this forum guys
RE: cryptography - Solixious - 04-09-2012
(04-09-2012, 01:54 AM)Frooxius Wrote: You wish... That happens only in an ideal world. Actually no, in an ideal world, we wouldn't need to have passwords to begin with.
A lot of poorly designed information systems (which includes websites) store passwords in plaintext in the database, so anyone can read them anytime and once someone bad gets the password, nothing stops him from misusing it, maybe a conveniently timed spontaneously created blackhole next to his person, but how many of these do you see?
I'm not sure what you mean by an ideal world.
The poorly designed information systems, we can't help it if their founders are lazy enough to make the jobs of malicious guys that simple.. I myself haven't encountered plain text passwords stored in databases yet. Maybe they do exist. So I'd take back my earlier words..
Cheers.
RE: cryptography - Frooxius - 04-09-2012
Ideal world as in world, where is everything ideal, where people can trust each other, where "friends" don't act nice to use you and then stab you in your back whenever they get the first chance despite the fact that you helped them whenever they needed, where people don't steal from each other, where they are nice and everyone can live without pain and misery, life of his dreams. An utopia.