From 0e4aeb5ee6878c74f8116b0719a90e167d17c6b4 Mon Sep 17 00:00:00 2001
From: ame <amelia@amyy.cc>
Date: Fri, 3 Nov 2023 19:45:15 -0500
Subject: tons of checksums (i had fun:3)

---
 src/hash/xor.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 src/hash/xor.c

(limited to 'src/hash/xor.c')

diff --git a/src/hash/xor.c b/src/hash/xor.c
new file mode 100644
index 0000000..a2c1b0b
--- /dev/null
+++ b/src/hash/xor.c
@@ -0,0 +1,26 @@
+#include "../crypto.h"
+#include <stdio.h>
+#include <stdint.h>
+
+uint8_t i_xor8(uint8_t *aa, size_t len){
+    uint8_t a = 0;
+
+    for(int i = 0; i != len; i++)
+        a += aa[i] & 0xff;
+    
+    return ((a ^ 0xff) + 1) & 0xff;
+}
+
+int l_xor8(lua_State* L){
+  
+  size_t len = 0;
+  uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len);
+  
+  char digest[8];
+
+  uint8_t u = i_xor8(a, len);
+  sprintf(digest,"%x",u);
+  lua_pushstring(L, digest);
+
+  return 1;
+}
-- 
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