commit 24be79588d363290bf253a67edad9ac06f9c62b9
author Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> Mon Mar 13 12:03:33 2017 +0100
committer Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> Wed Aug 09 11:44:53 2017 +0200
tree 134aacc034cf55c755cbe0c014d8f6165bb3baac
parent 4b2336d7f69ba5e6ad1ec4937f62b96f138f6c22

Group related code together

library/ecp.c

diff --git a/library/ecp.c b/library/ecp.c
index 2cbe4f0..4d3448c 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -1465,13 +1465,6 @@
 
     mbedtls_mpi_init( &M );
 
-    /*
-     * We need an odd scalar for recoding. Ensure that by replacing it with
-     * its opposite, then negating the result to compensate if needed.
-     */
-    m_is_odd = ( mbedtls_mpi_get_bit( m, 0 ) == 1 );
-    MBEDTLS_MPI_CHK( ecp_make_scalar_odd( grp, &M, m, m_is_odd ) );
-
     /* Is P the base point ? */
 #if MBEDTLS_ECP_FIXED_POINT_OPTIM == 1
     p_eq_g = ( mbedtls_mpi_cmp_mpi( &P->Y, &grp->G.Y ) == 0 &&
@@ -1510,6 +1503,13 @@
     }
 
     /*
+     * We need an odd scalar for recoding. Ensure that by replacing it with
+     * its opposite, then negating the result to compensate if needed.
+     */
+    m_is_odd = ( mbedtls_mpi_get_bit( m, 0 ) == 1 );
+    MBEDTLS_MPI_CHK( ecp_make_scalar_odd( grp, &M, m, m_is_odd ) );
+
+    /*
      * Go for comb multiplication, R = M * P
      */
     ecp_comb_fixed( k, d, w, &M );