blob: 82aaee78726615ed050ff369f2425dfbff8701ab (
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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
* EAC1_1 objects
* (C) 2008 Falko Strenzke
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_EAC_OBJ_H__
#define BOTAN_EAC_OBJ_H__
#include <botan/ecdsa_sig.h>
#include <botan/signed_obj.h>
#include <botan/look_pk.h>
#include <botan/oids.h>
#include <memory>
#include <string>
namespace Botan {
/*
* TR03110 v1.1 EAC CV Certificate
*/
template<typename Derived> // CRTP is used enable the call sequence:
class BOTAN_DLL EAC1_1_obj : public EAC_Signed_Object
{
// data members first:
protected:
ECDSA_Signature m_sig;
// member functions here:
public:
/**
* Return the signature as a concatenation of the encoded parts.
* @result the concatenated signature
*/
SecureVector<byte> get_concat_sig() const;
/**
* Verify the signature of this objects.
* @param pub_key the public key to verify the signature with
* @result true if the verification succeeded
*/
virtual bool check_signature(Public_Key& pub_key) const;
protected:
void init(DataSource& in);
static SecureVector<byte>
make_signature(PK_Signer& signer,
const MemoryRegion<byte>& tbs_bits,
RandomNumberGenerator& rng);
virtual ~EAC1_1_obj<Derived>(){}
};
template<typename Derived> SecureVector<byte> EAC1_1_obj<Derived>::get_concat_sig() const
{
return m_sig.get_concatenation();
}
template<typename Derived> SecureVector<byte>
EAC1_1_obj<Derived>::make_signature(PK_Signer& signer,
const MemoryRegion<byte>& tbs_bits,
RandomNumberGenerator& rng)
{
// this is the signature as a der sequence
ECDSA_Signature sig(signer.sign_message(tbs_bits, rng));
return sig.get_concatenation();
}
template<typename Derived>
void EAC1_1_obj<Derived>::init(DataSource& in)
{
try
{
Derived::decode_info(in, tbs_bits, m_sig);
}
catch(Decoding_Error)
{
throw Decoding_Error(PEM_label_pref + " decoding failed");
}
}
template<typename Derived>
bool EAC1_1_obj<Derived>::check_signature(Public_Key& pub_key) const
{
try
{
std::vector<std::string> sig_info =
split_on(OIDS::lookup(sig_algo.oid), '/');
if(sig_info.size() != 2 || sig_info[0] != pub_key.algo_name())
{
return false;
}
std::string padding = sig_info[1];
Signature_Format format =
(pub_key.message_parts() >= 2) ? DER_SEQUENCE : IEEE_1363;
if(!dynamic_cast<PK_Verifying_wo_MR_Key*>(&pub_key))
return false;
SecureVector<byte> seq_sig = m_sig.DER_encode();
SecureVector<byte> to_sign = tbs_data();
PK_Verifying_wo_MR_Key& sig_key = dynamic_cast<PK_Verifying_wo_MR_Key&>(pub_key);
std::auto_ptr<PK_Verifier> verifier(get_pk_verifier(sig_key, padding, format));
return verifier->verify_message(to_sign, seq_sig);
}
catch(...)
{
return false;
}
}
}
#endif
|
