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-rw-r--r--crypto/dsa/dsa.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/crypto/dsa/dsa.h b/crypto/dsa/dsa.h
index c7ba059f25..b12db98b13 100644
--- a/crypto/dsa/dsa.h
+++ b/crypto/dsa/dsa.h
@@ -85,6 +85,13 @@
#endif
#define DSA_FLAG_CACHE_MONT_P 0x01
+#define DSA_FLAG_NO_EXP_CONSTTIME 0x02 /* new with 0.9.7h; the built-in DSA
+ * 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.
+ */
#ifdef __cplusplus
extern "C" {