disable Sun divison algorithm by default

diff --git a/CHANGES b/CHANGES
index 3067dc6389005beae8755d3eec486dc22f9b6544..2908d32432b3010d4a3e94cd1dea5d7368d262bb 100644 (file)
--- 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 ed8e7043831bc8ae27e13b00eb4017ba2d8d7e38..bf7031b3ab3a152068d91c7adbadcd5c3359fd01 100644 (file)
--- 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.
  */