aboutsummaryrefslogtreecommitdiffstats
path: root/src/lib/modes/cipher_mode.h
blob: 11005348933573d56a64746a8988f0a5859740e6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/*
* Cipher Modes
* (C) 2013 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#ifndef BOTAN_CIPHER_MODE_H__
#define BOTAN_CIPHER_MODE_H__

#include <botan/transform.h>
#include <botan/stream_cipher.h>

namespace Botan {

/**
* Interface for cipher modes
*/
class BOTAN_DLL Cipher_Mode : public Keyed_Transform
   {
   public:
      /**
      * Returns true iff this mode provides authentication as well as
      * confidentiality.
      */
      virtual bool authenticated() const { return false; }
   };

/**
* The two possible directions for cipher filters, determining whether they
* actually perform encryption or decryption.
*/
enum Cipher_Dir { ENCRYPTION, DECRYPTION };

BOTAN_DLL Cipher_Mode* get_cipher_mode(const std::string& algo_spec, Cipher_Dir direction);

}

#endif