X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/ba6e6b64033b1f9de49feccb5c9cd438354481f7..0f00dc4c8eb47e67bc0f148c2dd109f73a451e0a:/des3.h?ds=sidebyside diff --git a/des3.h b/des3.h deleted file mode 100644 index f4f3311..0000000 --- a/des3.h +++ /dev/null @@ -1,110 +0,0 @@ -/* -*-c-*- - * - * $Id: des3.h,v 1.4 2004/04/08 01:36:15 mdw Exp $ - * - * Implementation of double- and triple-DES - * - * (c) 1999 Straylight/Edgeware - */ - -/*----- Licensing notice --------------------------------------------------* - * - * This file is part of Catacomb. - * - * Catacomb is free software; you can redistribute it and/or modify - * it under the terms of the GNU Library General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * Catacomb is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with Catacomb; if not, write to the Free - * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, - * MA 02111-1307, USA. - */ - -#ifndef CATACOMB_DES3_H -#define CATACOMB_DES3_H - -#ifdef __cplusplus - extern "C" { -#endif - -/*----- Notes on double- and triple-DES -----------------------------------* - * - * The normal recommendation for using DES now is `triple DES'. - * Conventionally, this involves an encrypt-decrypt-encrypt sequence, - * although whether the first and last operations use the same key is - * unfortunately not agreed upon. This interface handles both cases (and the - * single-key one too, although the simple @des@ calls are quicker for that). - */ - -/*----- Header files ------------------------------------------------------*/ - -#include - -#include - -#ifndef CATACOMB_DES_H -# include "des.h" -#endif - -/*----- Magical numbers ---------------------------------------------------*/ - -#define DES3_BLKSZ 8 -#define DES3_KEYSZ 21 -#define DES3_CLASS (N, B, 64) - -extern const octet des3_keysz[]; - -/*----- Data structures ---------------------------------------------------*/ - -typedef struct des3_ctx { - des_ctx a, b, c; -} des3_ctx; - -/*----- Functions provided ------------------------------------------------*/ - -/* --- @des3_init@ --- * - * - * Arguments: @des3_ctx *k@ = pointer to key block - * @const void *buf@ = pointer to key buffer - * @size_t sz@ = size of key material - * - * Returns: --- - * - * Use: Initializes a DES key buffer. The key buffer may have length - * 7, 8, 14, 16, 21, or 24. These correspond to one, two or - * three DES keys, either packed or unpacked (i.e., still - * containing parity bits). - */ - -extern void des3_init(des3_ctx */*k*/, const void */*buf*/, size_t /*sz*/); - -/* --- @des3_eblk@, @des_dblk@ --- * - * - * Arguments: @const des3_ctx *k@ = pointer to key block - * @const uint32 s[2]@ = pointer to source block - * @uint32 d[2]@ = pointer to destination block - * - * Returns: --- - * - * Use: Low-level block encryption and decryption. - */ - -extern void des3_eblk(const des3_ctx */*k*/, - const uint32 */*s*/, uint32 */*d*/); -extern void des3_dblk(const des3_ctx */*k*/, - const uint32 */*s*/, uint32 */*d*/); - -/*----- That's all, folks -------------------------------------------------*/ - -#ifdef __cplusplus - } -#endif - -#endif