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prelim manpage, cleanup, fixed crippled plaintext: sed does a nice 

job on replacing everything, just wouldnt skip it
OPENBSD_2_1
provos 27 years ago
parent
2855a033e2
commit
169a7268a4
4 changed files with 99 additions and 20 deletions
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  1. +4
    -3
      src/lib/libc/crypt/Makefile.inc
  2. +4
    -4
      src/lib/libc/crypt/bcrypt.c
  3. +84
    -0
      src/lib/libc/crypt/blowfish.3
  4. +7
    -13
      src/lib/libc/crypt/blowfish.c

+ 4
- 3
src/lib/libc/crypt/Makefile.inc View File

@ -1,10 +1,11 @@
# $OpenBSD: Makefile.inc,v 1.6 1997/02/13 16:59:53 provos Exp $
# $OpenBSD: Makefile.inc,v 1.7 1997/02/16 20:58:11 provos Exp $
.PATH: ${.CURDIR}/arch/${MACHINE_ARCH}/crypt ${.CURDIR}/crypt
SRCS+= crypt.c morecrypt.c md5crypt.c arc4random.c blowfish.c
SRCS+= bcrypt.c
MAN+= crypt.3
MAN+= crypt.3 blowfish.3
MLINKS+=crypt.3 encrypt.3 crypt.3 setkey.3 crypt.3 des_cipher.3
MLINKS+=crypt.3 des_setkey.3
MLINKS+=crypt.3 des_setkey.3 blowfish.3 blf_key.3 blowfish.3 blf_enc.3
MLINKS+=blowfish.3 blf_dec.3

+ 4
- 4
src/lib/libc/crypt/bcrypt.c View File

@ -1,4 +1,4 @@
/* $OpenBSD: bcrypt.c,v 1.2 1997/02/14 18:40:14 provos Exp $ */
/* $OpenBSD: bcrypt.c,v 1.3 1997/02/16 20:58:15 provos Exp $ */
/*
* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
* All rights reserved.
@ -13,7 +13,7 @@
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Theo de Raadt.
* This product includes software developed by Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
@ -37,7 +37,7 @@
* REPEAT rounds:
* state := ExpandKey (state, 0, salt)
* state := ExpandKey(state, 0, password)
* 4. ctext := "OpenBSDbcrypthashfunc"
* 4. ctext := "OrpheanBeholderScryDoubt"
* 5. REPEAT 64:
* ctext := Encrypt_ECB (state, ctext);
* 6. RETURN Concatenate (salt, ctext);
@ -187,7 +187,7 @@ bcrypt(key, salt)
u_int32_t rounds, i, k;
u_int16_t j;
u_int8_t key_len, salt_len, logr;
u_int8_t ciphertext[4 * BCRYPT_BLOCKS] = "OpenBSDbcrypthashfunc";
u_int8_t ciphertext[4 * BCRYPT_BLOCKS] = "OrpheanBeholderScryDoubt";
u_int8_t csalt[BCRYPT_MAXSALT];
u_int32_t cdata[BCRYPT_BLOCKS];
/* Discard "$" identifier */


+ 84
- 0
src/lib/libc/crypt/blowfish.3 View File

@ -0,0 +1,84 @@
.\" $OpenBSD: blowfish.3,v 1.1 1997/02/16 20:58:16 provos Exp $
.\" Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by Niels Provos.
.\" 4. The name of the author may not be used to endorse or promote products
.\" derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" Manual page, using -mandoc macros
.\"
.Dd February 13, 1997
.Dt BLOWFISH 3
.Os "OpenBSD 2.0"
.Sh NAME
.Nm blf_key,
.Nm blf_enc,
.Nm blf_dec
.Nd Blowfish encryption
.Sh SYNOPSIS
.Fd #include <blf.h>
.Ft void
.Fn blf_key "blf_ctx *state" "const u_int8_t *key" "u_int16_t keylen"
.Ft void
.Fn blf_enc "blf_ctx *state" "u_int32_t *data" "u_int16_t datalen"
.Ft void
.Fn blf_dec "blf_ctx *state" "u_int32_t *data" "u_int16_t datalen"
.Sh DESCRIPTION
.Pa Blowfish
is a fast unpatented block cipher designed by Bruce Schneier.
It basically consists of a 16 times iterated Feistel network.
The block size is 64 bit and the key size is maximal 448 bit.
.Pp
The
.Fn blf_key
function initializes the 4 8bit S-boxes and the 18 Subkeys with
the hexadecimal digits of Pi. The key is used for further randomization.
The first argument to
.Fn blf_enc
is the initalized state derived from
.Fn blf_key .
The stream of data is encrypted in Electronic Cookbook Mode (ECB) and
.Pa datalen
must be even.
.Fn blf_dec
is used for decrypting Blowfish encrypted blocks.
.Pp
The functions
.Fn Blowfish_initstate ,
.Fn Blowfish_expand0state ,
.Fn Blowfish_expandstate ,
.Fn Blowfish_encipher
and
.Fn Blowfish_decipher
are used for customization of the
.Pa Blowfish
cipher, i.e. for the blowfish password hashing function or for
implementation of Cipher Block Chaining Mode (CBC).
.Sh SEE ALSO
.Xr crypt 3 ,
.Xr passwd 1 ,
.Xr passwd 5
.Sh AUTHOR
Niels Provos <provos@physnet.uni-hamburg.de>

+ 7
- 13
src/lib/libc/crypt/blowfish.c View File

@ -1,4 +1,4 @@
/* $OpenBSD: blowfish.c,v 1.2 1997/02/14 18:40:18 provos Exp $ */
/* $OpenBSD: blowfish.c,v 1.3 1997/02/16 20:58:17 provos Exp $ */
/*
* Blowfish block cipher for OpenBSD
* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
@ -16,7 +16,7 @@
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Theo de Raadt.
* This product includes software developed by Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
@ -56,12 +56,6 @@
static inline u_int32_t F __P((blf_ctx * bc, u_int32_t x));
/* Standard Blowfish */
void blf_key __P((blf_ctx * c, u_int8_t * k, u_int16_t len));
void blf_enc __P((blf_ctx * c, u_int32_t * data, u_int16_t blocks));
void blf_dec __P((blf_ctx * c, u_int32_t * data, u_int16_t blocks));
/* Function for Feistel Networks */
static inline u_int32_t
@ -449,7 +443,7 @@ Blowfish_initstate(c)
u_int32_t
Blowfish_stream2word(data, databytes, current)
u_int8_t *data;
const u_int8_t *data;
u_int16_t databytes;
u_int16_t *current;
{
@ -473,7 +467,7 @@ Blowfish_stream2word(data, databytes, current)
void
Blowfish_expand0state(c, key, keybytes)
blf_ctx *c;
u_int8_t *key;
const u_int8_t *key;
u_int16_t keybytes;
{
u_int16_t i;
@ -515,9 +509,9 @@ Blowfish_expand0state(c, key, keybytes)
void
Blowfish_expandstate(c, data, databytes, key, keybytes)
blf_ctx *c;
u_int8_t *data;
const u_int8_t *data;
u_int16_t databytes;
u_int8_t *key;
const u_int8_t *key;
u_int16_t keybytes;
{
u_int16_t i;
@ -562,7 +556,7 @@ Blowfish_expandstate(c, data, databytes, key, keybytes)
void
blf_key(c, k, len)
blf_ctx *c;
u_int8_t *k;
const u_int8_t *k;
u_int16_t len;
{
/* Initalize S-boxes and subkeys with Pi */


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