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technicaljicama · Dec 17, 2022 · fb21bbd · fb21bbd
1 parent 2a77df4
commit fb21bbd
Showing 1 changed file with 134 additions and 0 deletions.
diff --git a/main.c b/main.c
@@ -0,0 +1,134 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+unsigned char s1[] =
+{
+  199, 254, 188, 253,  21, 141,  78, 155,  56, 118, 
+  146, 165, 159, 135,   1,  91, 143,  16, 228, 211, 
+   80, 149, 163, 212,   0,  29, 210, 239, 171,  24, 
+   70, 240,  19, 145, 167,  68, 104, 130,  20, 119, 
+  206, 162, 112, 205,   7, 196,  75, 160, 183,  99, 
+   96,  98,  85, 236, 153,  76, 222,  71, 233,  59, 
+   93,  66,  83,  41,  13,  48, 124, 180,  54, 246, 
+   39, 100, 117,  58, 191, 198, 178,  94, 175, 152, 
+    3, 242,  49, 186, 213,  88, 238, 134, 115,  90, 
+  126, 230, 219,  35, 111, 204, 173, 185, 164,  14, 
+  215,  79,  11,  97, 214,  46, 243, 252, 116,  53, 
+  235, 250, 241, 179,  61,  81, 227, 189,  12,  34, 
+  190, 221, 108, 151,   6, 105, 187,  40, 218, 237, 
+  109,  45,  72,  65, 169,  38,  60,  42, 229, 140, 
+   62, 208, 150, 194,  51,  28, 154, 122,   4,  15, 
+   87,  27, 144, 170, 133, 209,  17, 216, 197,   8, 
+   63, 131, 157,  89, 203, 174, 207, 224,  10,  84, 
+   47,  31,   9,  26, 132, 114, 121, 142, 103,  23, 
+   86, 193, 127, 244, 249, 220,  67, 136,  32, 232, 
+  156, 255, 202, 125, 226, 223, 201,  57, 195, 110, 
+  172, 251,  33,  30,  64,  95, 245, 139, 177,  74, 
+   43, 113, 166,  25,  82, 225, 200,  18,  77, 106, 
+   55,  50,   5, 168,   2, 184, 107,  36,  22,  92, 
+   52,  69, 247, 217,  73, 248, 148, 128, 176, 192, 
+  147, 137, 102, 231, 120, 181, 101, 129, 234, 138, 
+   37, 158, 123, 182, 161,  44,  88, 144, 176,  51, 
+  226, 221, 219,  51, 231, 178, 230,  61, 130, 244, 
+  115, 211,   9, 211, 178,  85,  94,  57,  88, 144, 
+  133,  65,  52, 132,  52, 132,   8, 176,  24
+};
+
+unsigned char s2[] =
+{
+   88, 144, 176,  51, 226, 221, 219,  51, 231, 178, 
+  230,  61, 130, 244, 115, 211,   9, 211, 178,  85, 
+   94,  57,  88, 144, 133,  65,  52, 132,  52, 132, 
+    8, 176,  24
+};
+
+unsigned char map[] =
+{
+  209,   9, 203,  99,  22,  52,  35, 230, 207, 144, 
+  241,  24,  45, 185,  15,  44, 181,   0, 138,  29, 
+  242,   6, 155,  81, 214, 164, 101,  62, 213, 172, 
+    7,  84, 110, 173, 118, 105,  64, 136, 114, 149, 
+  152,  31, 248,  89, 234, 111,  80, 163,  18,  85, 
+  135, 112, 194, 212,   1, 120,  16,  97, 132,  93, 
+  208, 130,  76,   3,  23, 192, 245, 243,  95, 165, 
+   66, 151,  49,  42, 168,  71,  92,  77, 147,   2, 
+   36, 100,  48, 141,  33, 193,  43, 232,  83, 131, 
+  133,  73, 162,  17,  55, 190,  72, 182, 246, 158, 
+   38,  53,   4,  14, 103, 107, 195, 217, 221, 159, 
+  235,  20, 126, 186, 115, 128, 184, 189, 250, 202, 
+  119, 215, 200, 117, 226, 187, 227,  28, 150,  54, 
+  169,  13, 170,  63, 199, 177,  98,  56,  11, 252, 
+  160,  39, 123, 178, 229, 251, 201,  21, 113, 244, 
+   27, 254,  68,  46,  90, 121, 167,  25, 253,  59, 
+  139,  34, 161, 236, 223, 102,  74, 237,  32, 134, 
+   61, 108,  94, 153,  67, 175, 225,  10, 239, 211, 
+   19, 222, 148, 104, 180, 205, 106, 220, 255,  60, 
+  125, 231, 145,  41,  37, 197,  51, 109, 122,  57, 
+  228,  58,  79,  30, 219,  65,  86,  78, 156, 129, 
+  233, 183, 191, 224, 154,  82, 196, 140, 127,  12, 
+   87,  47, 171, 116,  26, 146,  69,  70, 206,  75, 
+  188, 240, 137, 249, 176, 179, 210,  88,   8, 204, 
+  216, 198, 218,  50, 166,  40, 238,  91, 143,   5, 
+  174, 157,  96, 142, 247, 124
+};
+
+unsigned char key[] =
+{
+  137,   3,  94,  57, 136,  57,  57, 101, 165, 199, 
+   82, 101, 165,  94,  82,   5,  82,  82,   3, 137, 
+   72, 136, 165, 196,  57,  72,  57,  72,  82,  72, 
+   26,  94, 101, 165,  94, 243,  72,  82,  72,  82, 
+    5, 136,  72, 199, 199,  72, 165,  82,   3,  81, 
+  101, 243,   5,  82,  57,  57, 137,  82,   3,   5, 
+   81, 199, 199,  81,  17
+};
+
+char *decryptGiphyApiKey()
+
+{
+  char *out;
+  int i;
+
+  out = malloc(34);
+  i = 0;
+  do {
+    out[i] = s1[s2[i]];
+    i = i + 1;
+  } while (i != 33);
+  out[33] = '\0';
+  return out;
+}
+
+char* decryptSigningKey()
+
+{
+  char *out;
+  int i;
+
+  out = malloc(66);
+  i = 0;
+  do {
+    out[i] = map[key[i]];
+    i = i + 1;
+  } while (i != 65);
+
+  out[65] = '\0';
+
+  return out;
+}
+
+int main() {
+    char *giphy = decryptGiphyApiKey();
+    char *sign = decryptSigningKey();
+
+    for(int i = 0; i < strlen(giphy); i++) 
+        printf("%c",giphy[i]);
+
+    printf("\nNow the Request Signing key \n");
+
+    for(int i = 0; i < strlen(sign); i++) 
+        printf("%c",sign[i]);
+
+    printf("\nReddit, i think this should be an easy reverse engineering exercise, not the protection for your beloved app\n");
+}