use "forward declare header" pk_ops_fwd.h instead of self forward declaring them

1 files changed, 1 insertions, 12 deletions

diff --git a/src/lib/pubkey/pk_keys.h b/src/lib/pubkey/pk_keys.h
index f5ffb8f13..8ebad48e7 100644
--- a/src/lib/pubkey/pk_keys.h
+++ b/src/lib/pubkey/pk_keys.h
@@ -12,23 +12,12 @@
 #include <botan/asn1_oid.h>
 #include <botan/alg_id.h>
 #include <botan/rng.h>
+#include <botan/pk_ops_fwd.h>
 
 namespace Botan {
 
 class RandomNumberGenerator;
 
-namespace PK_Ops {
-
-class Encryption;
-class Decryption;
-class Key_Agreement;
-class KEM_Encryption;
-class KEM_Decryption;
-class Verification;
-class Signature;
-
-}
-
 /**
 * Public Key Base Class.
 */