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-rw-r--r--libdes/weak_key.c73
1 files changed, 0 insertions, 73 deletions
diff --git a/libdes/weak_key.c b/libdes/weak_key.c
deleted file mode 100644
index 6657c1e..0000000
--- a/libdes/weak_key.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * $Source$
- * $Author$
- *
- * Copyright 1989 by the Massachusetts Institute of Technology.
- *
- * For copying and distribution information, please see the file
- * <mit-copyright.h>.
- *
- * Under U.S. law, this software may not be exported outside the US
- * without license from the U.S. Commerce department.
- *
- * These routines form the library interface to the DES facilities.
- *
- * Originally written 8/85 by Steve Miller, MIT Project Athena.
- */
-
-#ifndef lint
-static char rcsid_weak_key_c[] =
- "$Id$";
-#endif
-
-#include <des.h>
-
-/*
- * The following are the weak DES keys:
- */
-static des_cblock weak[16] = {
- /* weak keys */
- {0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01},
- {0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe},
- {0x1f,0x1f,0x1f,0x1f,0x0e,0x0e,0x0e,0x0e},
- {0xe0,0xe0,0xe0,0xe0,0xf1,0xf1,0xf1,0xf1},
-
- /* semi-weak */
- {0x01,0xfe,0x01,0xfe,0x01,0xfe,0x01,0xfe},
- {0xfe,0x01,0xfe,0x01,0xfe,0x01,0xfe,0x01},
-
- {0x1f,0xe0,0x1f,0xe0,0x0e,0xf1,0x0e,0xf1},
- {0xe0,0x1f,0xe0,0x1f,0xf1,0x0e,0xf1,0x0e},
-
- {0x01,0xe0,0x01,0xe0,0x01,0xf1,0x01,0xf1},
- {0xe0,0x01,0xe0,0x01,0xf1,0x01,0xf1,0x01},
-
- {0x1f,0xfe,0x1f,0xfe,0x0e,0xfe,0x0e,0xfe},
- {0xfe,0x1f,0xfe,0x1f,0xfe,0x0e,0xfe,0x0e},
-
- {0x01,0x1f,0x01,0x1f,0x01,0x0e,0x01,0x0e},
- {0x1f,0x01,0x1f,0x01,0x0e,0x01,0x0e,0x01},
-
- {0xe0,0xfe,0xe0,0xfe,0xf1,0xfe,0xf1,0xfe},
- {0xfe,0xe0,0xfe,0xe0,0xfe,0xf1,0xfe,0xf1}
-};
-
-/*
- * des_is_weak_key: returns true iff key is a [semi-]weak des key.
- *
- * Requires: key has correct odd parity.
- */
-int
-des_is_weak_key(key)
- des_cblock key;
-{
- int i;
- des_cblock *weak_p = weak;
-
- for (i = 0; i < (sizeof(weak)/sizeof(des_cblock)); i++) {
- if (!memcmp((char *)weak_p++, (char *)key, sizeof(des_cblock)))
- return 1;
- }
-
- return 0;
-}