1 files changed, 49 insertions, 0 deletions
diff --git a/common/rdr/AESInStream.h b/common/rdr/AESInStream.h
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+++ b/common/rdr/AESInStream.h
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+/* Copyright (C) 2022 Dinglan Peng
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifndef __RDR_AESINSTREAM_H__
+#define __RDR_AESINSTREAM_H__
+
+#ifdef HAVE_NETTLE
+
+#include <nettle/eax.h>
+#include <nettle/aes.h>
+#include <rdr/BufferedInStream.h>
+
+namespace rdr {
+
+  class AESInStream : public BufferedInStream {
+  public:
+    AESInStream(InStream* in, const U8* key, int keySize);
+    virtual ~AESInStream();
+
+  private:
+    virtual bool fillBuffer();
+
+    int keySize;
+    InStream* in;
+    union {
+      struct EAX_CTX(aes128_ctx) eaxCtx128;
+      struct EAX_CTX(aes256_ctx) eaxCtx256;
+    };
+    U8 counter[16];
+  };
+}
+
+#endif
+#endif