aboutsummaryrefslogtreecommitdiffstats
path: root/include/nr.h
blob: a71d29f9f682ea54abd77181e04dd5f5d95918fe (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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
/*************************************************
* Nyberg-Rueppel Header File                     *
* (C) 1999-2006 The Botan Project                *
*************************************************/

#ifndef BOTAN_NYBERG_RUEPPEL_H__
#define BOTAN_NYBERG_RUEPPEL_H__

#include <botan/dl_algo.h>
#include <botan/pk_core.h>

namespace Botan {

/*************************************************
* Nyberg-Rueppel Public Key                      *
*************************************************/
class NR_PublicKey : public PK_Verifying_with_MR_Key,
                     public virtual DL_Scheme_PublicKey
   {
   public:
      SecureVector<byte> verify(const byte[], u32bit) const;
      u32bit max_input_bits() const;

      NR_PublicKey(const DL_Group&, const BigInt&);
   protected:
      std::string algo_name() const { return "NR"; }
      NR_PublicKey() {}

      NR_Core core;
   private:
      friend Public_Key* get_public_key(const std::string&);
      DL_Group::Format group_format() const { return DL_Group::ANSI_X9_57; }
      u32bit message_parts() const { return 2; }
      u32bit message_part_size() const;
      void X509_load_hook();
   };

/*************************************************
* Nyberg-Rueppel Private Key                     *
*************************************************/
class NR_PrivateKey : public NR_PublicKey,
                      public PK_Signing_Key,
                      public virtual DL_Scheme_PrivateKey
   {
   public:
      SecureVector<byte> sign(const byte[], u32bit) const;

      bool check_key(bool) const;

      NR_PrivateKey(const DL_Group&);
      NR_PrivateKey(const DL_Group&, const BigInt&, const BigInt& = 0);
   private:
      friend Private_Key* get_private_key(const std::string&);
      void PKCS8_load_hook(bool = false);
      NR_PrivateKey() {}
   };

}

#endif