blob: 3731e8f1b598f6a418570c1f82919a2742c2e753 (
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
|
/*************************************************
* ElGamal Header File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#ifndef BOTAN_ELGAMAL_H__
#define BOTAN_ELGAMAL_H__
#include <botan/dl_algo.h>
#include <botan/pk_core.h>
#include <botan/blinding.h>
namespace Botan {
/*************************************************
* ElGamal Public Key *
*************************************************/
class ElGamal_PublicKey : public PK_Encrypting_Key,
public virtual DL_Scheme_PublicKey
{
public:
SecureVector<byte> encrypt(const byte[], u32bit) const;
u32bit max_input_bits() const;
ElGamal_PublicKey(const DL_Group&, const BigInt&);
protected:
std::string algo_name() const { return "ElGamal"; }
ElGamal_PublicKey() {}
ELG_Core core;
private:
friend X509_PublicKey* get_public_key(const std::string&);
DL_Group::Format group_format() const { return DL_Group::ANSI_X9_42; }
void X509_load_hook();
};
/*************************************************
* ElGamal Private Key *
*************************************************/
class ElGamal_PrivateKey : public ElGamal_PublicKey,
public PK_Decrypting_Key,
public virtual DL_Scheme_PrivateKey
{
public:
SecureVector<byte> decrypt(const byte[], u32bit) const;
bool check_key(bool) const;
ElGamal_PrivateKey(const DL_Group&);
ElGamal_PrivateKey(const DL_Group&, const BigInt&, const BigInt& = 0);
private:
friend PKCS8_PrivateKey* get_private_key(const std::string&);
void PKCS8_load_hook();
ElGamal_PrivateKey() {}
};
}
#endif
|
