[C#]Hashing

[shout]

Here. Have a working X-Sha-1 for C#.

Code Select Expand


public static byte[] HashData(byte[] data)
{
uint[] buffer = new uint[128];
Buffer.BlockCopy(data, 0, buffer, 0, data.Length);
int i;
uint a, b, c, d, e, g;
for (i = 0; i < 0x50; i++)
{
buffer[i + 16] = Rol(1, (int)(buffer[i] ^ buffer[i + 8] ^ buffer[i + 2] ^ buffer[i + 13]) % 32);
}

a = 0x67452301u;
b = 0xefcdab89u;
c = 0x98badcfeu;
d = 0x10325476u;
e = 0xc3d2e1f0u;
g = 0x00000000u;

for (i = 0; i < 20; i++)
{
g = buffer[i] + Rol(a, 5) + e + ((b & c) | (~b & d)) + 0x5a827999u;
e = d;
d = c;
c = Rol(b, 30);
b = a;
a = g;
}

for (; i < 40; i++)
{
g = (d ^ c ^ b) + e + Rol(g, 5) + buffer[i] + 0x6ed9eba1u;
e = d;
d = c;
c = Rol(b, 30);
b = a;
a = g;
}

for (; i < 60; i++)
{
g = buffer[i] + Rol(g, 5) + e + ((c & b) | (d & c) | (d & b)) - 0x70e44324u;
e = d;
d = c;
c = Rol(b, 30);
b = a;
a = g;
}

for (; i < 80; i++)
{
g = (d ^ c ^ b) + e + Rol(g, 5) + buffer[i] - 0x359d3e2au;
e = d;
d = c;
c = Rol(b, 30);
b = a;
a = g;
}

uint[] rInts = new uint[5];
rInts[0] = a + 0x67452301u;
rInts[1] = b + 0xefcdab89u;
rInts[2] = c + 0x98badcfeu;
rInts[3] = d + 0x10325476u;
rInts[4] = e + 0xc3d2e1f0u;
byte[] rBytes = new byte[20];
Buffer.BlockCopy(rInts, 0, rBytes, 0, 20);
return rBytes;
}

private static uint Rol(uint n, int shift)
{
return (uint)((n << shift) | (n >> (32 - shift)));
}


Edit: Changed some bad names... from "stuff" to "rInts" and "q" to "rBytes".[/i]

[Mephisto]

Is it just me or does that look almost exactly like Adron's HashData()?

[MyndFyre]

Is it just me or does that look almost exactly like Adron's HashData()?

I've never seen Adron's, but -- who cares?  If Adron's is open-source then it should be translatable into other languages.

[shout]

Its from bnetauth, couldn't find author so I assumed it was Yobguls.

But all the credit goes to Adron I guess.

Took me about 2 weeks to get this done... overflow checking was on 

I will post the password and cdkey stuff as soon as I port it. Mabey I will put it in a nice little .Net dll.

[Mephisto]

GJ

[MyndFyre]

overflow checking was on 

LoL --

unchecked(expression);

[shout]

overflow checking was on 

LoL --

unchecked(expression);

Or just turn overflow checking off for the whole project.

[MyndFyre]

overflow checking was on 

LoL --

unchecked(expression);

Or just turn overflow checking off for the whole project.

Sometimes that's not optimal.    You can also do entire unchecked blocks:

Code Select Expand


unchecked {
  int m = (uint)n;
}


etc.

[shout]

:p

As the thing above my pic indicates: I am no longer a newbie I have moved to junior member.

[MyndFyre]

:p

As the thing above my pic indicates: I am no longer a newbie I have moved to junior member.

hehe.  That has nothing to do with what I say.  And I'm not trying to pick on you. 

[shout]

I know I just give everyone shit all the time. Anything I say outside of code blocks should probably not be taken seroiusly.

And neither should my spelling.

[Zakath]

:p

As the thing above my pic indicates: I am no longer a newbie I have moved to junior member.

There lots of Junior Members. However, there's only one Havoc Wreaker!

[Soul Taker]

:p

As the thing above my pic indicates: I am no longer a newbie I have moved to junior member.

There lots of Junior Members. However, there's only one Havoc Wreaker!

I'm a fake admin!  Go me!!

[shout]

How do you change that? Do you have to have so many posts or something? (Excuse my noobness)

[MyndFyre]

How do you change that? Do you have to have so many posts or something? (Excuse my noobness)

I don't believe that we peons have the ability to set our Custom Title.  I believe you'll need to PM an Admin.