1 files changed, 0 insertions, 82 deletions
diff --git a/usr.sbin/xntpd/lib/authdecrypt.c b/usr.sbin/xntpd/lib/authdecrypt.c
deleted file mode 100644
index 6ad3aebaf467..000000000000
--- a/usr.sbin/xntpd/lib/authdecrypt.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * authdecrypt - routine to decrypt a packet to see if this guy knows our key.
- */
-#include "ntp_stdlib.h"
-
-/*
- * For our purposes an NTP packet looks like:
- *
- *	a variable amount of unencrypted data, multiple of 8 bytes, followed by:
- *	NOCRYPT_OCTETS worth of unencrypted data, followed by:
- *	BLOCK_OCTETS worth of ciphered checksum.
- */
-#define	NOCRYPT_OCTETS	4
-#define	BLOCK_OCTETS	8
-
-#define	NOCRYPT_LONGS	((NOCRYPT_OCTETS)/sizeof(U_LONG))
-#define	BLOCK_LONGS	((BLOCK_OCTETS)/sizeof(U_LONG))
-
-/*
- * Imported from the key data base module
- */
-extern u_long cache_keyid;	/* cached key ID */
-extern u_char DEScache_dkeys[];	/* cached decryption keys */
-extern u_char DESzerodkeys[];	/* zero key decryption keys */
-
-/*
- * Stat counters, imported from data base module
- */
-extern U_LONG authdecryptions;
-extern U_LONG authkeyuncached;
-
-int
-DESauthdecrypt(keyno, pkt, length)
-	u_long keyno;
-	const U_LONG *pkt;
-	int length;	/* length of variable data in octets */
-{
-	register const U_LONG *pd;
-	register int i;
-	register u_char *keys;
-	register int longlen;
-	U_LONG work[2];
-
-	authdecryptions++;
-
-	if (keyno == 0)
-		keys = DESzerodkeys;
-	else {
-		if (keyno != cache_keyid) {
-			authkeyuncached++;
-			if (!authhavekey(keyno))
-				return 0;
-		}
-		keys = DEScache_dkeys;
-	}
-
-	/*
-	 * Get encryption block data in host byte order and decrypt it.
-	 */
-	longlen = length / sizeof(U_LONG);
-	pd = pkt + longlen;		/* points at NOCRYPT area */
-	work[0] = *(pd + NOCRYPT_LONGS);
-	work[1] = *(pd + NOCRYPT_LONGS + 1);
-
-	if (longlen & 0x1) {
-		DESauth_des(work, keys);
-		work[0] ^= *(--pd);
-	}
-
-	for (i = longlen/2; i > 0; i--) {
-		DESauth_des(work, keys);
-		work[1] ^= *(--pd);
-		work[0] ^= *(--pd);
-	}
-
-	/*
-	 * Success if the encryption data is zero
-	 */
-	if ((work[0] == 0) && (work[1] == 0))
-		return 1;
-	return 0;
-}