LCOV - code coverage report
Current view: top level - source4/heimdal/lib/hcrypto/libtommath - bn_mp_invmod.c (source / functions) Hit Total Coverage
Test: coverage report for abartlet/fix-coverage dd10fb34 Lines: 4 6 66.7 %
Date: 2021-09-23 10:06:22 Functions: 1 1 100.0 %

          Line data    Source code
       1             : #include <tommath.h>
       2             : #ifdef BN_MP_INVMOD_C
       3             : /* LibTomMath, multiple-precision integer library -- Tom St Denis
       4             :  *
       5             :  * LibTomMath is a library that provides multiple-precision
       6             :  * integer arithmetic as well as number theoretic functionality.
       7             :  *
       8             :  * The library was designed directly after the MPI library by
       9             :  * Michael Fromberger but has been written from scratch with
      10             :  * additional optimizations in place.
      11             :  *
      12             :  * The library is free for all purposes without any express
      13             :  * guarantee it works.
      14             :  *
      15             :  * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
      16             :  */
      17             : 
      18             : /* hac 14.61, pp608 */
      19         160 : int mp_invmod (mp_int * a, mp_int * b, mp_int * c)
      20             : {
      21             :   /* b cannot be negative */
      22         160 :   if (b->sign == MP_NEG || mp_iszero(b) == 1) {
      23           0 :     return MP_VAL;
      24             :   }
      25             : 
      26             : #ifdef BN_FAST_MP_INVMOD_C
      27             :   /* if the modulus is odd we can use a faster routine instead */
      28         160 :   if (mp_isodd (b) == 1) {
      29         160 :     return fast_mp_invmod (a, b, c);
      30             :   }
      31             : #endif
      32             : 
      33             : #ifdef BN_MP_INVMOD_SLOW_C
      34           0 :   return mp_invmod_slow(a, b, c);
      35             : #else
      36             :   return MP_VAL;
      37             : #endif
      38             : }
      39             : #endif
      40             : 
      41             : /* $Source: /cvs/libtom/libtommath/bn_mp_invmod.c,v $ */
      42             : /* $Revision: 1.4 $ */
      43             : /* $Date: 2006/12/28 01:25:13 $ */

Generated by: LCOV version 1.13