Prepare for 0.9.8ze-dev

[oweals/openssl.git] / crypto / bn / bn_lib.c

diff --git a/crypto/bn/bn_lib.c b/crypto/bn/bn_lib.c
index 32a8fbaf51ee29e1e93003497da1e08bad720180..c288844aa548f600fa0a480b3df8f24c70eb822a 100644 (file)
--- a/crypto/bn/bn_lib.c
+++ b/crypto/bn/bn_lib.c
@@ -320,6 +320,15 @@ static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
                BNerr(BN_F_BN_EXPAND_INTERNAL,ERR_R_MALLOC_FAILURE);
                return(NULL);
                }
+#ifdef PURIFY
+       /* Valgrind complains in BN_consttime_swap because we process the whole
+        * array even if it's not initialised yet. This doesn't matter in that
+        * function - what's important is constant time operation (we're not
+        * actually going to use the data)
+       */
+       memset(a, 0, sizeof(BN_ULONG)*words);
+#endif
+
 #if 1
        B=b->d;
        /* Check if the previous number needs to be copied */