final

crack.c

@@ -10,7 +10,7 @@
   int exist[30];
 BYTE old[6];
 int count = 0;
-void makeguess(char * word_list, int hashes[][32],int a);
+void guess(char * word_list, int hashes[][32],int a);
 
 //function to generate lower character strings of length 6 for random brute force: Got 8 passwords
 void printRandomString(int hashes[30][32]) {
@@ -281,8 +281,54 @@ int main(int argc, char * argv[]) {
 
       b++;
     }
-
+guess(argv[2],hashes,a);
   }
   return 0;
 
 }
+
+void guess(char * word_list, int hashes[][32], int a) {
+  
+  BYTE buffer[SHA256_BLOCK_SIZE];
+  SHA256_CTX ctx;
+  BYTE password[10];
+  bool cracked = true;
+
+  for (int c1 = 32; c1 < 127; c1++) {
+    password[0] = c1;
+    if (count == 10) break;
+    for (int c2 = 32; c2 < 127; c2++) {
+      password[1] = c2;
+      if (count == 10) break;
+      for (int c3 = 32; c3 < 127; c3++) {
+        password[2] = c3;
+        if (count == 10) break;
+        for (int c4 = 32; c4 < 127; c4++) {
+          if (count == 10) break;
+          password[3] = c4;
+          password[4] = '\0';
+
+          sha256_init( & ctx);
+          sha256_update( & ctx, password, sizeof(password));
+          sha256_final( & ctx, buffer);
+
+          for (int i = 1; i < 11; i++) {
+            cracked = true;
+            for (int j = 0; j < 32; j++) {
+              if (buffer[j] != hashes[i][j]) {
+                cracked = false;
+                break;
+              }
+            }
+            if (cracked == true) {
+              count++;
+              ctx.data[4] = '\0';
+              printf("%s %d\n", ctx.data, i);
+            }
+          }
+        }
+      }
+    }
+  }
+}
+