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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
|
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <decaf.hxx>
#include <decaf/eddsa.hxx>
#include <decaf/spongerng.hxx>
#include "dnssecinfra.hh"
using namespace decaf;
class DecafED25519DNSCryptoKeyEngine : public DNSCryptoKeyEngine
{
public:
explicit DecafED25519DNSCryptoKeyEngine(unsigned int algo) : DNSCryptoKeyEngine(algo)
{
}
string getName() const override { return "Decaf ED25519"; }
void create(unsigned int bits) override;
storvector_t convertToISCVector() const override;
std::string getPubKeyHash() const override;
std::string sign(const std::string& msg) const override;
bool verify(const std::string& msg, const std::string& signature) const override;
std::string getPublicKeyString() const override;
int getBits() const override;
void fromISCMap(DNSKEYRecordContent& drc, std::map<std::string, std::string>& stormap) override;
void fromPublicKeyString(const std::string& content) override;
void fromPEMString(DNSKEYRecordContent& drc, const std::string& raw) override
{}
static std::shared_ptr<DNSCryptoKeyEngine> maker(unsigned int algorithm)
{
return std::make_shared<DecafED25519DNSCryptoKeyEngine>(algorithm);
}
private:
unsigned char d_pubkey[DECAF_EDDSA_25519_PUBLIC_BYTES];
unsigned char d_seckey[DECAF_EDDSA_25519_PRIVATE_BYTES];
};
void DecafED25519DNSCryptoKeyEngine::create(unsigned int bits)
{
if(bits != (unsigned int)getBits()) {
throw runtime_error("Unsupported key length of "+std::to_string(bits)+" bits requested, DecafED25519 class");
}
SpongeRng rng("/dev/urandom");
typename EdDSA<IsoEd25519>::PrivateKey priv(rng);
typename EdDSA<IsoEd25519>::PublicKey pub(priv);
priv.serialize_into(d_seckey);
pub.serialize_into(d_pubkey);
}
int DecafED25519DNSCryptoKeyEngine::getBits() const
{
return DECAF_EDDSA_25519_PRIVATE_BYTES << 3;
}
DNSCryptoKeyEngine::storvector_t DecafED25519DNSCryptoKeyEngine::convertToISCVector() const
{
/*
Private-key-format: v1.2
Algorithm: 15 (ED25519)
PrivateKey: ODIyNjAzODQ2MjgwODAxMjI2NDUxOTAyMDQxNDIyNjI=
*/
storvector_t storvector;
storvector.push_back(make_pair("Algorithm", "15 (ED25519)"));
storvector.push_back(make_pair("PrivateKey", string((char*)d_seckey, DECAF_EDDSA_25519_PRIVATE_BYTES)));
return storvector;
}
void DecafED25519DNSCryptoKeyEngine::fromISCMap(DNSKEYRecordContent& drc, std::map<std::string, std::string>& stormap )
{
/*
Private-key-format: v1.2
Algorithm: 15 (ED25519)
PrivateKey: ODIyNjAzODQ2MjgwODAxMjI2NDUxOTAyMDQxNDIyNjI=
*/
drc.d_algorithm = pdns_stou(stormap["algorithm"]);
string privateKey = stormap["privatekey"];
if (privateKey.length() != DECAF_EDDSA_25519_PRIVATE_BYTES)
throw runtime_error("Private key size mismatch in ISCMap, DecafED25519 class");
typename EdDSA<IsoEd25519>::PrivateKey priv(Block((const unsigned char*)privateKey.c_str(), DECAF_EDDSA_25519_PRIVATE_BYTES));
typename EdDSA<IsoEd25519>::PublicKey pub(priv);
priv.serialize_into(d_seckey);
pub.serialize_into(d_pubkey);
}
std::string DecafED25519DNSCryptoKeyEngine::getPubKeyHash() const
{
return this->getPublicKeyString();
}
std::string DecafED25519DNSCryptoKeyEngine::getPublicKeyString() const
{
return string((char*)d_pubkey, DECAF_EDDSA_25519_PUBLIC_BYTES);
}
void DecafED25519DNSCryptoKeyEngine::fromPublicKeyString(const std::string& input)
{
if (input.length() != DECAF_EDDSA_25519_PUBLIC_BYTES)
throw runtime_error("Public key size mismatch, DecafED25519 class");
memcpy(d_pubkey, input.c_str(), DECAF_EDDSA_25519_PUBLIC_BYTES);
}
std::string DecafED25519DNSCryptoKeyEngine::sign(const std::string& msg) const
{
typename EdDSA<IsoEd25519>::PrivateKey priv(Block(d_seckey, DECAF_EDDSA_25519_PRIVATE_BYTES));
SecureBuffer message(msg.begin(), msg.end());
SecureBuffer sig = priv.sign(message);
return string(sig.begin(), sig.end());
}
bool DecafED25519DNSCryptoKeyEngine::verify(const std::string& msg, const std::string& signature) const
{
if (signature.length() != DECAF_EDDSA_25519_SIGNATURE_BYTES)
return false;
typename EdDSA<IsoEd25519>::PublicKey pub(Block(d_pubkey, DECAF_EDDSA_25519_PUBLIC_BYTES));
SecureBuffer sig(signature.begin(), signature.end());
SecureBuffer message(msg.begin(), msg.end());
try {
pub.verify(sig, message);
} catch(CryptoException) {
return false;
}
return true;
}
class DecafED448DNSCryptoKeyEngine : public DNSCryptoKeyEngine
{
public:
explicit DecafED448DNSCryptoKeyEngine(unsigned int algo) : DNSCryptoKeyEngine(algo)
{
}
string getName() const override { return "Decaf ED448"; }
void create(unsigned int bits) override;
storvector_t convertToISCVector() const override;
std::string getPubKeyHash() const override;
std::string sign(const std::string& msg) const override;
bool verify(const std::string& msg, const std::string& signature) const override;
std::string getPublicKeyString() const override;
int getBits() const override;
void fromISCMap(DNSKEYRecordContent& drc, std::map<std::string, std::string>& stormap) override;
void fromPublicKeyString(const std::string& content) override;
void fromPEMString(DNSKEYRecordContent& drc, const std::string& raw) override
{}
static std::shared_ptr<DNSCryptoKeyEngine> maker(unsigned int algorithm)
{
return std::make_shared<DecafED448DNSCryptoKeyEngine>(algorithm);
}
private:
unsigned char d_pubkey[DECAF_EDDSA_448_PUBLIC_BYTES];
unsigned char d_seckey[DECAF_EDDSA_448_PRIVATE_BYTES];
};
void DecafED448DNSCryptoKeyEngine::create(unsigned int bits)
{
if(bits != (unsigned int)getBits()) {
throw runtime_error("Unsupported key length of "+std::to_string(bits)+" bits requested, DecafED448 class");
}
SpongeRng rng("/dev/urandom");
typename EdDSA<Ed448Goldilocks>::PrivateKey priv(rng);
typename EdDSA<Ed448Goldilocks>::PublicKey pub(priv);
priv.serialize_into(d_seckey);
pub.serialize_into(d_pubkey);
}
int DecafED448DNSCryptoKeyEngine::getBits() const
{
return DECAF_EDDSA_448_PRIVATE_BYTES << 3;
}
DNSCryptoKeyEngine::storvector_t DecafED448DNSCryptoKeyEngine::convertToISCVector() const
{
/*
Private-key-format: v1.2
Algorithm: 16 (ED448)
PrivateKey: xZ+5Cgm463xugtkY5B0Jx6erFTXp13rYegst0qRtNsOYnaVpMx0Z/c5EiA9x8wWbDDct/U3FhYWA
*/
storvector_t storvector;
storvector.push_back(make_pair("Algorithm", "16 (ED448)"));
storvector.push_back(make_pair("PrivateKey", string((char*)d_seckey, DECAF_EDDSA_448_PRIVATE_BYTES)));
return storvector;
}
void DecafED448DNSCryptoKeyEngine::fromISCMap(DNSKEYRecordContent& drc, std::map<std::string, std::string>& stormap )
{
/*
Private-key-format: v1.2
Algorithm: 16 (ED448)
PrivateKey: xZ+5Cgm463xugtkY5B0Jx6erFTXp13rYegst0qRtNsOYnaVpMx0Z/c5EiA9x8wWbDDct/U3FhYWA
*/
drc.d_algorithm = pdns_stou(stormap["algorithm"]);
string privateKey = stormap["privatekey"];
if (privateKey.length() != DECAF_EDDSA_448_PRIVATE_BYTES)
throw runtime_error("Private key size mismatch in ISCMap, DecafED448 class");
typename EdDSA<Ed448Goldilocks>::PrivateKey priv(Block((const unsigned char*)privateKey.c_str(), DECAF_EDDSA_448_PRIVATE_BYTES));
typename EdDSA<Ed448Goldilocks>::PublicKey pub(priv);
priv.serialize_into(d_seckey);
pub.serialize_into(d_pubkey);
}
std::string DecafED448DNSCryptoKeyEngine::getPubKeyHash() const
{
return this->getPublicKeyString();
}
std::string DecafED448DNSCryptoKeyEngine::getPublicKeyString() const
{
return string((char*)d_pubkey, DECAF_EDDSA_448_PUBLIC_BYTES);
}
void DecafED448DNSCryptoKeyEngine::fromPublicKeyString(const std::string& input)
{
if (input.length() != DECAF_EDDSA_448_PUBLIC_BYTES)
throw runtime_error("Public key size mismatch, DecafED448 class");
memcpy(d_pubkey, input.c_str(), DECAF_EDDSA_448_PUBLIC_BYTES);
}
std::string DecafED448DNSCryptoKeyEngine::sign(const std::string& msg) const
{
typename EdDSA<Ed448Goldilocks>::PrivateKey priv(Block(d_seckey, DECAF_EDDSA_448_PRIVATE_BYTES));
SecureBuffer message(msg.begin(), msg.end());
SecureBuffer sig = priv.sign(message);
return string(sig.begin(), sig.end());
}
bool DecafED448DNSCryptoKeyEngine::verify(const std::string& msg, const std::string& signature) const
{
if (signature.length() != DECAF_EDDSA_448_SIGNATURE_BYTES)
return false;
typename EdDSA<Ed448Goldilocks>::PublicKey pub(Block(d_pubkey, DECAF_EDDSA_448_PUBLIC_BYTES));
SecureBuffer sig(signature.begin(), signature.end());
SecureBuffer message(msg.begin(), msg.end());
try {
pub.verify(sig, message);
} catch(CryptoException) {
return false;
}
return true;
}
namespace {
struct LoaderDecafStruct
{
LoaderDecafStruct()
{
DNSCryptoKeyEngine::report(15, &DecafED25519DNSCryptoKeyEngine::maker, true);
DNSCryptoKeyEngine::report(16, &DecafED448DNSCryptoKeyEngine::maker);
}
} loaderdecaf;
}
|
