Add new helper zap which zeros a vector, clears it, and then calls

shrink_to_fit to actually deallocate memory.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/block/lubyrack/lubyrack.cpp b/src/block/lubyrack/lubyrack.cpp
index 77f2a7542..9be079003 100644
--- a/src/block/lubyrack/lubyrack.cpp
+++ b/src/block/lubyrack/lubyrack.cpp
@@ -98,8 +98,8 @@ void LubyRackoff::key_schedule(const byte key[], size_t length)
 */
 void LubyRackoff::clear()
    {
-   K1.clear();
-   K2.clear();
+   zap(K1);
+   zap(K2);
    hash->clear();
    }