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, 4 deletions

diff --git a/src/block/des/des.h b/src/block/des/des.h
index fc42cfee5..4f3811bcf 100644
--- a/src/block/des/des.h
+++ b/src/block/des/des.h
@@ -21,7 +21,7 @@ class BOTAN_DLL DES : public Block_Cipher_Fixed_Params<8, 8>
       void encrypt_n(const byte in[], byte out[], size_t blocks) const;
       void decrypt_n(const byte in[], byte out[], size_t blocks) const;
 
-      void clear() { round_key.clear(); }
+      void clear();
       std::string name() const { return "DES"; }
       BlockCipher* clone() const { return new DES; }
    private:
@@ -39,11 +39,9 @@ class BOTAN_DLL TripleDES : public Block_Cipher_Fixed_Params<8, 16, 24, 8>
       void encrypt_n(const byte in[], byte out[], size_t blocks) const;
       void decrypt_n(const byte in[], byte out[], size_t blocks) const;
 
-      void clear() { round_key.clear(); }
+      void clear();
       std::string name() const { return "TripleDES"; }
       BlockCipher* clone() const { return new TripleDES; }
-
-      TripleDES() : round_key(96) {}
    private:
       void key_schedule(const byte[], size_t);