OSX/libsecurity_cryptkit/lib/CurveParamDocs/ellproj.h

   1 /**************************************************************
   2  *
   3  *      ellproj.h
   4  *
   5  *      Header file for ellproj.c
   6  *
   7  *      Updates:
   8  *              3 Apr 98    REC - Creation
   9  *
  10  *      c. 1998 Perfectly Scientific, Inc.
  11  *      All Rights Reserved.
  12  *
  13  *
  14  *************************************************************/
  15
  16 /* definitions */
  17
  18 typedef struct  /* This is how to define a projective point. */
  19 {
  20          giant x;
  21          giant y;
  22          giant z;
  23 } point_struct_proj;
  24
  25 typedef point_struct_proj *point_proj;
  26
  27 point_proj  /* Allocates a new projective point. */
  28 new_point_proj(int shorts);
  29
  30 void  /* Frees point. */
  31 free_point_proj(point_proj pt);
  32
  33 void  /* Copies point to point. */
  34 ptop_proj(point_proj pt1, point_proj pt2);
  35
  36 void  /* Initialization. */
  37 init_ell_proj(int shorts);
  38
  39 void /* Point doubling. */
  40 ell_double_proj(point_proj pt, giant a, giant p);
  41
  42 void /* Point addition. */
  43 ell_add_proj(point_proj pt0, point_proj pt1, giant a, giant p);
  44
  45 void /* Point negation. */
  46 ell_neg_proj(point_proj pt, giant p);
  47
  48 void /* Point subtraction. */
  49 ell_sub_proj(point_proj pt0, point_proj pt1, giant a, giant p);
  50
  51 void /* General elliptic mul. */
  52 ell_mul_proj(point_proj pt0, point_proj pt1, giant k, giant a, giant p);
  53
  54 void /* Generate normalized point (X, Y, 1) from given (x,y,z). */
  55 normalize_proj(point_proj pt, giant p);
  56
  57 void /* Find a point (x, y, 1) on the curve. */
  58 find_point_proj(point_proj pt, giant seed, giant a, giant b, giant p);
  59