Remove flags for disabling constant-time operations.

This removes support for DSA_FLAG_NO_EXP_CONSTTIME, DH_FLAG_NO_EXP_CONSTTIME,
and RSA_FLAG_NO_CONSTTIME flags, making all of these operations unconditionally
constant-time.

Based on the original patch by César Pereid.  ok beck@

1 files changed, 1 insertions, 8 deletions

diff --git a/src/lib/libcrypto/dh/dh.h b/src/lib/libcrypto/dh/dh.h
index a20467c9d0..631cd5c685 100644
--- a/src/lib/libcrypto/dh/dh.h
+++ b/src/lib/libcrypto/dh/dh.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: dh.h,v 1.16 2014/06/12 15:49:28 deraadt Exp $ */
+/* $OpenBSD: dh.h,v 1.17 2016/06/30 02:02:06 bcook Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -78,13 +78,6 @@
 #endif
 
 #define DH_FLAG_CACHE_MONT_P     0x01
-#define DH_FLAG_NO_EXP_CONSTTIME 0x02 /* new with 0.9.7h; the built-in DH
-                                       * implementation now uses constant time
-                                       * modular exponentiation for secret exponents
-                                       * by default. This flag causes the
-                                       * faster variable sliding window method to
-                                       * be used for all exponents.
-                                       */
 
 /* If this flag is set the DH method is FIPS compliant and can be used
  * in FIPS mode. This is set in the validated module method. If an