From: Bodo Möller <bodo@openssl.org>
Date: Fri, 2 Aug 2002 18:26:02 +0000 (+0000)
Subject: disable Sun divison algorithm by default
X-Git-Tag: OpenSSL_0_9_7-beta4~218^2~8
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=909abce8002bf6babc42b8196c812f738d8cd0d6;p=thirdparty%2Fopenssl.git

disable Sun divison algorithm by default
---

diff --git a/CHANGES b/CHANGES
index 3067dc63890..2908d32432b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -120,9 +120,11 @@
 
      bntest.c has additional tests for binary polynomial arithmetic.
 
-     Two implementations for BN_GF2m_mod_div() are available (selected
-     at compile-time).  ...
-TBD ... OPENSSL_NO_SUN_DIV ...  --Bodo
+     Two implementations for BN_GF2m_mod_div() are available.
+     The default algorithm simply uses BN_GF2m_mod_inv() and
+     BN_GF2m_mod_mul().  The alternative algorithm is compiled in only
+     if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
+     copyright notice in crypto/bn/bn_gf2m.c before enabling it).
 
      [Sheueling Chang Shantz and Douglas Stebila
      (Sun Microsystems Laboratories)]
diff --git a/crypto/bn/bn_gf2m.c b/crypto/bn/bn_gf2m.c
index ed8e7043831..bf7031b3ab3 100644
--- a/crypto/bn/bn_gf2m.c
+++ b/crypto/bn/bn_gf2m.c
@@ -613,7 +613,7 @@ int BN_GF2m_mod_inv_arr(BIGNUM *r, const BIGNUM *xx, const unsigned int p[], BN_
 	}
 
 
-#ifdef OPENSSL_NO_SUN_DIV
+#ifndef OPENSSL_SUN_GF2M_DIV
 /* Divide y by x, reduce modulo p, and store the result in r. r could be x 
  * or y, x could equal y.
  */