Rearrange the file tree.

[u/mdw/catacomb] / dsarand.h

diff --git a/dsarand.h b/dsarand.h
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--- a/dsarand.h
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@@ -1,153 +0,0 @@
-/* -*-c-*-
- *
- * $Id: dsarand.h,v 1.4 2004/04/08 01:36:15 mdw Exp $
- *
- * Random number generator for DSA
- *
- * (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_DSARAND_H
-#define CATACOMB_DSARAND_H
-
-#ifdef __cplusplus
-  extern "C" {
-#endif
-
-/*----- Header files ------------------------------------------------------*/
-
-#include <mLib/bits.h>
-
-#ifndef CATACOMB_GRAND_H
-#  include "grand.h"
-#endif
-
-#ifndef CATACOMB_SHA_H
-#  include "sha.h"
-#endif
-
-/*----- Data structures ---------------------------------------------------*/
-
-typedef struct dsarand {
-  octet *p;                            /* Pointer to seed (modified) */
-  size_t sz;                           /* Size of the seed buffer */
-  unsigned passes;                     /* Number of passes to make */
-} dsarand;
-
-/*----- Functions provided ------------------------------------------------*/
-
-/* --- @dsarand_init@ --- *
- *
- * Arguments:  @dsarand *d@ = pointer to context
- *             @const void *p@ = pointer to seed buffer
- *             @size_t sz@ = size of the buffer
- *
- * Returns:    ---
- *
- * Use:                Initializes a DSA random number generator.
- */
-
-extern void dsarand_init(dsarand */*d*/, const void */*p*/, size_t /*sz*/);
-
-/* --- @dsarand_reseed@ --- *
- *
- * Arguments:  @dsarand *d@ = pointer to context
- *             @const void *p@ = pointer to seed buffer
- *             @size_t sz@ = size of the buffer
- *
- * Returns:    ---
- *
- * Use:                Initializes a DSA random number generator.
- */
-
-extern void dsarand_reseed(dsarand */*d*/, const void */*p*/, size_t /*sz*/);
-
-/* --- @dsarand_destroy@ --- *
- *
- * Arguments:  @dsarand *d@ = pointer to context
- *
- * Returns:    ---
- *
- * Use:                Disposes of a DSA random number generation context.
- */
-
-extern void dsarand_destroy(dsarand */*d*/);
-
-/* --- @dsarand_fill@ --- *
- *
- * Arguments:  @dsarand *d@ = pointer to context
- *             @void *p@ = pointer to output buffer
- *             @size_t sz@ = size of output buffer
- *
- * Returns:    ---
- *
- * Use:                Fills an output buffer with pseudorandom data.
- *
- *             Let %$p$% be the numerical value of the input buffer, and let
- *             %$b$% be the number of bytes required.  Let
- *             %$z = \lceil b / 20 \rceil$% be the number of SHA outputs
- *             required.  Then the output of pass %$n$% is
- *
- *               %$P_n = \sum_{0 \le i < z} 2^{160i} SHA(p + nz + i)$%
- *                                                     %${} \bmod 2^{8b}$%
- *
- *             and the actual result in the output buffer is the XOR of all
- *             of the output passes.
- *
- *             The DSA procedure for choosing @q@ involves two passes with
- *             %$z = 1$%; the procedure for choosing @p@ involves one pass
- *             with larger %$z$%.  This generalization of the DSA generation
- *             procedure is my own invention but it seems relatively sound.
- */
-
-extern void dsarand_fill(dsarand */*d*/, void */*p*/, size_t /*sz*/);
-
-/*----- Generic pseudorandom-number generator interface -------------------*/
-
-/* --- Miscellaneous operations --- */
-
-enum {
-  DSARAND_PASSES = GRAND_SPECIFIC('D'),        /* @unsigned n@ */
-  DSARAND_SEEDSZ,                      /* No args */
-  DSARAND_GETSEED                      /* @void *buf@ */
-};
-
-/* --- @dsarand_create@ --- *
- *
- * Arguments:  @const void *p@ = pointer to seed buffer
- *             @size_t sz@ = size of seed buffer
- *
- * Returns:    Pointer to a generic generator.
- *
- * Use:                Constructs a generic generator interface to a DSA generator.
- */
-
-extern grand *dsarand_create(const void */*p*/, size_t /*sz*/);
-
-/*----- That's all, folks -------------------------------------------------*/
-
-#ifdef __cplusplus
-  }
-#endif
-
-#endif