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diff --git a/src/kdf/pbkdf2/pbkdf2.h b/src/kdf/pbkdf2/pbkdf2.h
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+/*************************************************
+* PBKDF2 Header File *
+* (C) 1999-2007 Jack Lloyd *
+*************************************************/
+
+#ifndef BOTAN_PBKDF2_H__
+#define BOTAN_PBKDF2_H__
+
+#include <botan/s2k.h>
+
+namespace Botan {
+
+/*************************************************
+* PKCS #5 PBKDF2 *
+*************************************************/
+class BOTAN_DLL PKCS5_PBKDF2 : public S2K
+ {
+ public:
+ std::string name() const;
+ S2K* clone() const { return new PKCS5_PBKDF2(hash_name); }
+ PKCS5_PBKDF2(const std::string&);
+ private:
+ OctetString derive(u32bit, const std::string&,
+ const byte[], u32bit, u32bit) const;
+ const std::string hash_name;
+ };
+
+}
+
+#endif