From b7b18d1ad20cef243338a4176eb251f2a4749cb1 Mon Sep 17 00:00:00 2001
From: Ken Raeburn <raeburn@mit.edu>
Date: Tue, 10 Apr 2001 07:49:14 +0000
Subject: [PATCH] remove some outdated comments

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@13167 dc483132-0cff-0310-8789-dd5450dbe970
---
 src/lib/des425/des.c         | 25 -------------------------
 src/lib/des425/enc_dec.c     | 30 ------------------------------
 src/lib/des425/key_parity.c  | 11 -----------
 src/lib/des425/key_sched.c   | 21 ---------------------
 src/lib/des425/new_rnd_key.c | 15 ---------------
 src/lib/des425/weak_key.c    |  7 -------
 6 files changed, 109 deletions(-)

diff --git a/src/lib/des425/des.c b/src/lib/des425/des.c
index 6ba03730d..e4fc70b63 100644
--- a/src/lib/des425/des.c
+++ b/src/lib/des425/des.c
@@ -24,31 +24,6 @@
  * this software for any purpose.  It is provided "as is" without express
  * or implied warranty.
  * 
- *
- * These routines perform encryption and decryption using the DES
- * private key algorithm, or else a subset of it-- fewer inner loops.
- * (AUTH_DES_ITER defaults to 16, may be less.)
- *
- * Under U.S. law, this software may not be exported outside the US
- * without license from the U.S. Commerce department.
- *
- * The key schedule is passed as an arg, as well as the cleartext or
- * ciphertext.
- *
- * All registers labeled imply Vax using the Ultrix or 4.2bsd
- * compiler.
- *
- *
- *	NOTE:  bit and byte numbering:
- *			DES algorithm is defined in terms of bits of L
- *			followed by bits of R.
- *		bit 0  ==> lsb of L
- *		bit 63 ==> msb of R
- *
- * Always work in register pairs, FROM L1,R1 TO L2,R2 to make
- * bookkeeping easier.
- *
- * originally written by Steve Miller, MIT Project Athena
  */
 
 #include "des_int.h"
diff --git a/src/lib/des425/enc_dec.c b/src/lib/des425/enc_dec.c
index c46341392..653ae965e 100644
--- a/src/lib/des425/enc_dec.c
+++ b/src/lib/des425/enc_dec.c
@@ -5,17 +5,6 @@
  * of Technology.
  * All Rights Reserved.
  *
- * These routines perform encryption and decryption using the DES
- * private key algorithm, or else a subset of it -- fewer inner loops.
- * (AUTH_DES_ITER defaults to 16, may be less.)
- *
- * 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.
- *
  * Export of this software from the United States of America may
  *   require a specific license from the United States Government.
  *   It is the responsibility of any person or organization contemplating
@@ -41,25 +30,6 @@
 #include "des_int.h"
 #include "des.h"
 
-/*
- * This routine performs DES cipher-block-chaining operation, either
- * encrypting from cleartext to ciphertext, if encrypt != 0 or
- * decrypting from ciphertext to cleartext, if encrypt == 0.
- *
- * The key schedule is passed as an arg, as well as the cleartext or
- * ciphertext.	The cleartext and ciphertext should be in host order.
- *
- * NOTE-- the output is ALWAYS an multiple of 8 bytes long.  If not
- * enough space was provided, your program will get trashed.
- *
- * For encryption, the cleartext string is null padded, at the end, to
- * an integral multiple of eight bytes.
- *
- * For decryption, the ciphertext will be used in integral multiples
- * of 8 bytes, but only the first "length" bytes returned into the
- * cleartext.
- */
-
 int
 des_cbc_encrypt(in,out,length,key,iv,encrypt)
     krb5_octet   *in;	/* >= length bytes of input text */
diff --git a/src/lib/des425/key_parity.c b/src/lib/des425/key_parity.c
index d52676c78..96e13e2f4 100644
--- a/src/lib/des425/key_parity.c
+++ b/src/lib/des425/key_parity.c
@@ -23,15 +23,6 @@
  * this software for any purpose.  It is provided "as is" without express
  * or implied warranty.
  * 
- *
- * These routines check and fix parity of encryption keys for the DES
- * algorithm.
- *
- * 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.
- *
  */
 
 #include "des_int.h"
@@ -51,8 +42,6 @@ des_fixup_key_parity(key)
 
 /*
  * des_check_key_parity: returns true iff key has the correct des parity.
- *                       See des_fix_key_parity for the definition of
- *                       correct des parity.
  */
 int
 des_check_key_parity(key)
diff --git a/src/lib/des425/key_sched.c b/src/lib/des425/key_sched.c
index cb62a502f..ae80c4a24 100644
--- a/src/lib/des425/key_sched.c
+++ b/src/lib/des425/key_sched.c
@@ -24,27 +24,6 @@
  * this software for any purpose.  It is provided "as is" without express
  * or implied warranty.
  * 
- *
- * This routine computes the DES key schedule given a key.  The
- * permutations and shifts have been done at compile time, resulting
- * in a direct one-step mapping from the input key to the key
- * schedule.
- *
- * Also checks parity and weak keys.
- *
- * Watch out for the subscripts -- most effectively start at 1 instead
- * of at zero.  Maybe some bugs in that area.
- *
- * DON'T change the data types for arrays and such, or it will either
- * break or run slower.  This was optimized for Uvax2.
- *
- * In case the user wants to cache the computed key schedule, it is
- * passed as an arg.  Also implies that caller has explicit control
- * over zeroing both the key schedule and the key.
- *
- * All registers labeled imply Vax using the Ultrix or 4.2bsd compiler.
- *
- * Originally written 6/85 by Steve Miller, MIT Project Athena.
  */
 
 
diff --git a/src/lib/des425/new_rnd_key.c b/src/lib/des425/new_rnd_key.c
index f04f25a72..7abdd5b4d 100644
--- a/src/lib/des425/new_rnd_key.c
+++ b/src/lib/des425/new_rnd_key.c
@@ -55,20 +55,6 @@
 #include "des_int.h"
 #include "des.h"
 
-/*
- * des_init_random_number_generator:
- *
- *    This routine takes a secret key possibly shared by a number
- * of servers and uses it to generate a random number stream that is
- * not shared by any of the other servers.  It does this by using the current
- * process id, host id, and the current time to the nearest second.  The
- * resulting stream seed is not useful information for cracking the secret
- * key.   Moreover, this routine keeps no copy of the secret key.
- * This routine is used for example, by the kerberos server(s) with the
- * key in question being the kerberos master key.
- *
- * Note: this routine calls des_set_random_generator_seed.
- */
 void
 des_init_random_number_generator(key)
     mit_des_cblock key;
@@ -107,4 +93,3 @@ des_new_random_key(key)
 
     return 0;
 }
-
diff --git a/src/lib/des425/weak_key.c b/src/lib/des425/weak_key.c
index d9f7c37fc..f4ef6fbc5 100644
--- a/src/lib/des425/weak_key.c
+++ b/src/lib/des425/weak_key.c
@@ -23,13 +23,6 @@
  * this software for any purpose.  It is provided "as is" without express
  * or implied warranty.
  * 
- *
- * 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.
  */
 
 #include "des_int.h"
-- 
2.26.2