ADD exercices week 2

02-Easy2/code.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+
+int main(int param_1,char* *param_2) {
+  char* input_string;
+  size_t input_length;
+  char* pcVar2;
+  char* pcVar3;
+  uint32_t uVar4;
+
+  if (param_1 == 2) {
+    input_string = (char *)param_2[1];
+    input_length = strlen(input_string);
+    if (input_length == 12) {
+      uVar4 = 0x56253667;
+      pcVar2 = input_string;
+      do {
+        pcVar3 = pcVar2 + 4;
+        uVar4 = uVar4 ^ ((uint8_t)pcVar2[0] << 24 | (uint8_t)pcVar2[1] << 16 | (uint8_t)pcVar2[2] << 8 | (uint8_t)pcVar2[3]);
+        pcVar2 = pcVar3;
+      } while (input_string + 12 != pcVar3);
+      if (uVar4 == 0x3c3e386b) {
+        fprintf(stderr,"\nCongratulations ! A right password is indeed %s :-)\n\n",input_string);
+        return 0;
+      }
+      fwrite("\nWrong password ! Try again...\n\n", 1, 0x20,stderr);
+    } else {
+      fwrite("\nWrong password length ! Try again...\n\n", 1, 0x20,stderr);
+    }
+  }
+  else {
+    fwrite("\nMSE-SRE Challenge E2 --- Enjoy !\n", 1, 0x22,stderr);
+    fwrite("\nWhat I need is 1024 passwords passing the check!\n",1,0x32,stderr);
+    fprintf(stderr, "\nUsage: %s <password>\n\n", *param_2);
+  }
+  return 1;
+}