C:\> Rostislav Persion's Projects

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127

using System.Text;
using System.Security.Cryptography;


Console.WriteLine("##### ROSTISLAV PERSION MD5 SMART CRACKER #####");
Console.WriteLine();

// SETTINGS AND BUILD LEX
string lex1 = "";
string res1 = "";

Console.Write("USE NUMBERS? (y/n): ");
res1 = Console.ReadLine().ToUpper().Trim();
if (res1 == "Y")
{
    lex1 += "0,1,2,3,4,5,6,7,8,9,";
}

Console.Write("USE UPPER CASE LETTERS? (y/n): ");
res1 = Console.ReadLine().ToUpper().Trim();
if (res1 == "Y")
{
    lex1 += "A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,";
}

Console.Write("USE LOWER CASE LETTERS? (y/n): ");
res1 = Console.ReadLine().ToUpper().Trim();
if (res1 == "Y")
{
    lex1 += "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,";
}

lex1 = lex1.TrimEnd(',');




// input possible content
Console.Write("ENTER POSSIBLE CONTENT (COMMA SEPARATED): ");
string content = Console.ReadLine();
content = " ," + content.Replace(" ", string.Empty) + "," + lex1;

string[] lex2 = content.Split(',');

// enter md5 hash
Console.Write("ENTER MD5 HASH: ");
string md5hash = Console.ReadLine();

// timing
DateTime start_time = new DateTime();
start_time = DateTime.Now;
Console.WriteLine();
Console.WriteLine(DateTime.Now);
Console.WriteLine("PROCESSING...");

// MD5 INIT
MD5 md5Hash = MD5.Create();
byte[] data;
StringBuilder sBuilder = new StringBuilder();



// itteration
string try_string = "";

for (int a = 0; a < lex2.Length; a++)
{
    for (int b = 0; b < lex2.Length; b++)
    {
        for (int c = 0; c < lex2.Length; c++)
        {
            for (int d = 0; d < lex2.Length; d++)
            {
                for (int e = 0; e < lex2.Length; e++)
                {
                    for (int f = 0; f < lex2.Length; f++)
                    {
                        for (int g = 0; g < lex2.Length; g++)
                        {
                            for (int h = 0; h < lex2.Length; h++)
                            {

                                // create an md5 attempt
                                try_string = (lex2[a] + lex2[b] + lex2[c] + lex2[d] + lex2[e] + lex2[f] + lex2[g] + lex2[h]).Trim();

                                //debug stuff
                                //Console.WriteLine(try_string);
                                //Console.WriteLine(GetMd5Hash(try_string));

                                // MD5 INNER
                                sBuilder.Clear();
                                data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(try_string));
                                for (int i = 0; i < data.Length; i++)
                                {
                                    sBuilder.Append(data[i].ToString("x2"));
                                }

                                // check for match
                                if (md5hash == sBuilder.ToString())
                                {
                                    // result
                                    Console.WriteLine();
                                    Console.WriteLine("ENCODING IS: " + try_string);
                                    
                                    //timing
                                    DateTime end_time = DateTime.Now;
                                    TimeSpan diff_time = end_time - start_time;

                                    Console.WriteLine();
                                    Console.WriteLine("DAYS: " + diff_time.Days);
                                    Console.WriteLine("HOURS: " + diff_time.Hours);
                                    Console.WriteLine("MINUTES: " + diff_time.Minutes);
                                    Console.WriteLine("SECONDS: " + diff_time.Seconds);
                                    Console.ReadLine();
                                    return;
                                }



                            }
                        }
                    }
                }
            }
        }
    }
}