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prelim manpage, cleanup, fixed crippled plaintext: sed does a nice
job on replacing everything, just wouldnt skip itOPENBSD_2_1
provos
28 years ago
4 changed files with 99 additions and 20 deletions
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+4 -3src/lib/libc/crypt/Makefile.inc
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+4 -4src/lib/libc/crypt/bcrypt.c
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+84 -0src/lib/libc/crypt/blowfish.3
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+7 -13src/lib/libc/crypt/blowfish.c
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src/lib/libc/crypt/Makefile.inc
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| @ -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 | .PATH: ${.CURDIR}/arch/${MACHINE_ARCH}/crypt ${.CURDIR}/crypt | ||||
| SRCS+= crypt.c morecrypt.c md5crypt.c arc4random.c blowfish.c | SRCS+= crypt.c morecrypt.c md5crypt.c arc4random.c blowfish.c | ||||
| SRCS+= bcrypt.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 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 | |||||
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src/lib/libc/crypt/bcrypt.c
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src/lib/libc/crypt/blowfish.3
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| @ -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> | |||||