ex1

2025-06-03 11:11:52 +02:00
parent 1bb273e8ac
commit 229b250177
2 changed files with 107 additions and 0 deletions
--- a/tp2/spn.h
+++ b/tp2/spn.h
@@ -0,0 +1,21 @@
+#ifndef _SPN_H
+#define _SPN_H
+
+unsigned char do_perm(unsigned char w, unsigned char perm[16]);
+unsigned char do_subst(unsigned char w, unsigned char subst[16]);
+
+unsigned short encrypt(
+    unsigned short w,
+    unsigned int key,
+    unsigned char perm[16],
+    unsigned char subst[16]
+);
+
+unsigned short decrypt(
+    unsigned short w,
+    unsigned int key,
+    unsigned char perm[16],
+    unsigned char subst[16]
+);
+
+#endif