[Plugin] SHA512 - Printable Version

[Plugin] SHA512 - Printable Version

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+--- Thread: [Plugin] SHA512 (/showthread.php?tid=188734)

Pages: 1 2 3

Re: SHA1 - RyDeR` - 09.11.2010

SHA is Secure Hash Algorithm.

It simply hashes your string to something not understandable when read.
Click on the Wikipedia link to know more about this.

Respuesta: SHA1 - xenowort - 09.11.2010

If you have 256 bits or less, can be factored in a few hours with a personal computer using free software. If you have is 512 bits or less, can be factored by several hundreds of computers . A theoretical hardware device named TWIRL and described by Shamir Tromer in 2003 questioned the safety of 1024-bit key. It is currently recommended that no is at least 2048 bits long.
Some experts believe that 1024-bit keys could begin to be weak in a short time with 4096 bit key could be broken in the future.

Re: SHA1 - Brian_Furious - 09.11.2010

Ok, now i know what it means, so good job i'll use it...

Respuesta: Re: SHA1 - xenowort - 09.11.2010

Quote:

Originally Posted by Brian_Furious

Ok, now i know what it means, so good job i'll use it...

But is really recomended to use Whirpool.

Because The SHA is a secure digest algorithm developed by NIST. SHA-1 is a corrected version of the algorithm published in 1994. The algorithm is an ANSI standard. The algorithm takes a message of less than 264 bits and generates a summary of 160 bits. Is slower than MD5, but most key length makes it more resistant to attack by brute-force collision and investment.

Now exists SHA512 function works in a message block of 1024 bits and an intermediate hash value of 512 bits. It is essentially a block cipher that encrypts 512-bit intermediate value using the block as a key message.

The sha hash is cracked now, with a C# code Allow the choice of encryption algorithm using a list.
The resistance of SHA-1 algorithm has been compromised during the year 2005

Please upgrade SHA1 to SHA2 (Uses 512 bits).

Re: Respuesta: SHA1 - DiDok - 09.11.2010

Quote:

Originally Posted by MrDeath

I can't understand how to unhash a function without bruteforce

You can't, hashing != encrypting, after hashing data in unrecognizable and unreadable

Re: Respuesta: SHA1 - ziomal432 - 09.11.2010

Quote:

Originally Posted by MrDeath

I can't understand how to unhash a function without bruteforce, supposing I've got this 'hash':

pawn Код:

stock
    hash(const string[])
    {
        new
            len,
            pos,
            hashed
            ;

        for (len = strlen(string), pos = 0; pos < len; pos ++)
        {
            hashed += string[pos];
        }

        return 1;
    }

Supposing I hash "ab" (which will give me 195 [98 + 97])
How can you know the password without tryng all combinations?:

X + Y = 195

:\

Sorry if I am doing a stupid question, but I don't understand.

You need to do this with brute force, but this algorithm has very big collisions (the same hash for many strings).

Respuesta: Re: Respuesta: SHA1 - xenowort - 09.11.2010

Quote:

Originally Posted by RyDeR`

@ ******:
Agreed - you have a point.

@ Brian_Furious:
It's obvious. Which part don't you understand?

@ MrDeath:
It's not possible (AFAIK) as long you don't save every value of a character to another variable.
You can't just return the characters from a sum of numbers.

Quote:

Originally Posted by ziomal432

You need to do this with brute force, but this algorithm has very big collisions (the same hash for many strings).

if the string have 26 caracters with all signs, you have to wait 43 years to find the password with bruteforce.

Respuesta: Re: SHA1 - MrDeath537 - 09.11.2010

Quote:

Originally Posted by RyDeR`

I never will use the 'hash' what I posted, I posted it for give you an example.
I'm using Whirlpool.

Quote:

Originally Posted by DiDok

You can't, hashing != encrypting, after hashing data in unrecognizable and unreadable

I didn't know, thanks you.

Quote:

Originally Posted by xenowort

if the string have 26 caracters with all signs, you have to wait 43 years to find the password with bruteforce.

a, b, c, d, e ... x, y, z: 26 chars
A, B, C, D, E ... X, Y, Z: 26 chars,
0, 1, 2, 3, 4, 5 ... 9: 10 chars

(26 + 26 + 10) ^ 26 = 99999999999999999 :\

Re: SHA1 - nemesis- - 09.11.2010

SHA1 has known attacks against it. This is a bad choice.

Whirlpool on the other hand has no known attacks against it. It is a better choice.

Re: SHA512 - HyperZ - 13.01.2011

<Removed>

Re: SHA512 - Rock_Ro - 14.07.2011

Quote:

Originally Posted by FANEX

This plugin is revolutionary !!
I suggest everyone to change "whirpool plugin" with this. It's much faster...

How do you now that this plugin is much faster than Whirpool ?

Re: SHA512 - Lorenc_ - 14.07.2011

Quote:

Originally Posted by FANEX

This plugin is revolutionary !!
I suggest everyone to change "whirpool plugin" with this. It's much faster...
I'll try this today.

You haven't even tried it and you provided false information?

Re: SHA512 - FANEX - 14.07.2011

Quote:

Originally Posted by Lorenc_

You haven't even tried it and you provided false information?

"false information" ?

=))
It was my opinion, lol...

Anyway, I don't care about you. ****** is right... I use whirpool plugin too, but I like this more...

Re: SHA512 - Lorenc_ - 14.07.2011

Quote:

Originally Posted by FANEX

"false information" ?

=))
It was my opinion, lol...

Anyway, I don't care about you. ****** is right... I use whirpool plugin too, but I like this more...

"This plugin is revolutionary !!
I suggest everyone to change "whirpool plugin" with this. It's much faster...
I'll try this today."

Thats not really a opinion, its more of a statement with a false fact inside that 'statement'.

Re: SHA512 - FireCat - 14.07.2011

Aka hash system right? xb

Re: SHA512 - Rock_Ro - 14.07.2011

Quote:

Originally Posted by FireCat

Aka hash system right? xb

Exactly.

Re: SHA512 - Dodus - 09.09.2011

Why this plugin crashing my server when i write a password?

Re: SHA512 - Kaperstone - 09.09.2011

so what this plugin does?

AW: Re: SHA512 - thiaZ_ - 09.09.2011

Quote:

Originally Posted by xkirill

so what this plugin does?

1. Read the first post.
2. SHA512

Re: SHA512 - cssbart - 22.08.2012

help i get error

about a .dll file

says this is missing MSVCR100D.dll