5230455705

Committed 10 Jun 2023 02:30PM UTC coverage: 91.715% (-0.03%) from 91.746%

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Merge GH #3584 Change clang-format AllowShortFunctionsOnASingleLine config from All to Inline

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/src/lib/pubkey/pkcs8.cpp

/*
* PKCS #8
* (C) 1999-2010,2014,2018 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/pkcs8.h>

#include <botan/asn1_obj.h>
#include <botan/ber_dec.h>
#include <botan/der_enc.h>
#include <botan/pem.h>
#include <botan/pk_algs.h>
#include <botan/rng.h>
#include <botan/internal/fmt.h>
#include <botan/internal/scan_name.h>

#if defined(BOTAN_HAS_PKCS5_PBES2)
   #include <botan/internal/pbes2.h>
#endif

namespace Botan::PKCS8 {

namespace {

/*
* Get info from an EncryptedPrivateKeyInfo
*/
secure_vector<uint8_t> PKCS8_extract(DataSource& source, AlgorithmIdentifier& pbe_alg_id) {
   secure_vector<uint8_t> key_data;

   BER_Decoder(source).start_sequence().decode(pbe_alg_id).decode(key_data, ASN1_Type::OctetString).verify_end();

   return key_data;
}

/*
* PEM decode and/or decrypt a private key
*/
secure_vector<uint8_t> PKCS8_decode(DataSource& source,
                                    const std::function<std::string()>& get_passphrase,
                                    AlgorithmIdentifier& pk_alg_id,
                                    bool is_encrypted) {
   AlgorithmIdentifier pbe_alg_id;
   secure_vector<uint8_t> key_data, key;

   try {
      if(ASN1::maybe_BER(source) && !PEM_Code::matches(source)) {
         if(is_encrypted) {
            key_data = PKCS8_extract(source, pbe_alg_id);
         } else {
            // todo read more efficiently
            while(!source.end_of_data()) {
               uint8_t b;
               size_t read = source.read_byte(b);
               if(read) {
                  key_data.push_back(b);
               }
            }
         }
      } else {
         std::string label;
         key_data = PEM_Code::decode(source, label);

         // todo remove autodetect for pem as well?
         if(label == "PRIVATE KEY") {
            is_encrypted = false;
         } else if(label == "ENCRYPTED PRIVATE KEY") {
            DataSource_Memory key_source(key_data);
            key_data = PKCS8_extract(key_source, pbe_alg_id);
         } else {
            throw PKCS8_Exception(fmt("Unknown PEM label '{}'", label));
         }
      }

      if(key_data.empty()) {
         throw PKCS8_Exception("No key data found");
      }
   } catch(Decoding_Error& e) {
      throw Decoding_Error("PKCS #8 private key decoding", e);
   }

   try {
      if(is_encrypted) {
         if(pbe_alg_id.oid().to_formatted_string() != "PBE-PKCS5v20") {
            throw PKCS8_Exception(fmt("Unknown PBE type {}", pbe_alg_id.oid()));
         }

#if defined(BOTAN_HAS_PKCS5_PBES2)
         key = pbes2_decrypt(key_data, get_passphrase(), pbe_alg_id.parameters());
#else
         BOTAN_UNUSED(get_passphrase);
         throw Decoding_Error("Private key is encrypted but PBES2 was disabled in build");
#endif
      } else {
         key = key_data;
      }

      BER_Decoder(key)
         .start_sequence()
         .decode_and_check<size_t>(0, "Unknown PKCS #8 version number")
         .decode(pk_alg_id)
         .decode(key, ASN1_Type::OctetString)
         .discard_remaining()
         .end_cons();
   } catch(std::exception& e) {
      throw Decoding_Error("PKCS #8 private key decoding", e);
   }
   return key;
}

}  // namespace

/*
* PEM encode a PKCS #8 private key, unencrypted
*/
std::string PEM_encode(const Private_Key& key) {
   return PEM_Code::encode(key.private_key_info(), "PRIVATE KEY");
}

#if defined(BOTAN_HAS_PKCS5_PBES2)

namespace {

std::pair<std::string, std::string> choose_pbe_params(std::string_view pbe_algo, std::string_view key_algo) {
   if(pbe_algo.empty()) {
      /*
      * For algorithms where we are using a non-RFC format anyway, default to
      * SIV or GCM. For others (RSA, ECDSA, ...) default to something widely
      * compatible.
      */
      const bool nonstandard_pk = (key_algo == "McEliece" || key_algo == "XMSS");

      if(nonstandard_pk) {
   #if defined(BOTAN_HAS_AEAD_SIV) && defined(BOTAN_HAS_SHA2_64)
         return std::make_pair("AES-256/SIV", "SHA-512");
   #elif defined(BOTAN_HAS_AEAD_GCM) && defined(BOTAN_HAS_SHA2_64)
         return std::make_pair("AES-256/GCM", "SHA-512");
   #endif
      }

      // Default is something compatible with everyone else
      return std::make_pair("AES-256/CBC", "SHA-256");
   }

   SCAN_Name request(pbe_algo);

   if(request.arg_count() != 2 || (request.algo_name() != "PBE-PKCS5v20" && request.algo_name() != "PBES2")) {
      throw Invalid_Argument(fmt("Unsupported PBE '{}'", pbe_algo));
   }

   return std::make_pair(request.arg(0), request.arg(1));
}

}  // namespace

#endif

/*
* BER encode a PKCS #8 private key, encrypted
*/
std::vector<uint8_t> BER_encode(const Private_Key& key,
                                RandomNumberGenerator& rng,
                                std::string_view pass,
                                std::chrono::milliseconds msec,
                                std::string_view pbe_algo) {
#if defined(BOTAN_HAS_PKCS5_PBES2)
   const auto pbe_params = choose_pbe_params(pbe_algo, key.algo_name());

   const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =
      pbes2_encrypt_msec(PKCS8::BER_encode(key), pass, msec, nullptr, pbe_params.first, pbe_params.second, rng);

   std::vector<uint8_t> output;
   DER_Encoder der(output);
   der.start_sequence().encode(pbe_info.first).encode(pbe_info.second, ASN1_Type::OctetString).end_cons();

   return output;
#else
   BOTAN_UNUSED(key, rng, pass, msec, pbe_algo);
   throw Encoding_Error("PKCS8::BER_encode cannot encrypt because PBES2 was disabled in build");
#endif
}

/*
* PEM encode a PKCS #8 private key, encrypted
*/
std::string PEM_encode(const Private_Key& key,
                       RandomNumberGenerator& rng,
                       std::string_view pass,
                       std::chrono::milliseconds msec,
                       std::string_view pbe_algo) {
   if(pass.empty()) {
      return PEM_encode(key);
   }

   return PEM_Code::encode(PKCS8::BER_encode(key, rng, pass, msec, pbe_algo), "ENCRYPTED PRIVATE KEY");
}

/*
* BER encode a PKCS #8 private key, encrypted
*/
std::vector<uint8_t> BER_encode_encrypted_pbkdf_iter(const Private_Key& key,
                                                     RandomNumberGenerator& rng,
                                                     std::string_view pass,
                                                     size_t pbkdf_iterations,
                                                     std::string_view cipher,
                                                     std::string_view pbkdf_hash) {
#if defined(BOTAN_HAS_PKCS5_PBES2)
   const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =
      pbes2_encrypt_iter(key.private_key_info(),
                         pass,
                         pbkdf_iterations,
                         cipher.empty() ? "AES-256/CBC" : cipher,
                         pbkdf_hash.empty() ? "SHA-256" : pbkdf_hash,
                         rng);

   std::vector<uint8_t> output;
   DER_Encoder der(output);
   der.start_sequence().encode(pbe_info.first).encode(pbe_info.second, ASN1_Type::OctetString).end_cons();

   return output;

#else
   BOTAN_UNUSED(key, rng, pass, pbkdf_iterations, cipher, pbkdf_hash);
   throw Encoding_Error("PKCS8::BER_encode_encrypted_pbkdf_iter cannot encrypt because PBES2 disabled in build");
#endif
}

/*
* PEM encode a PKCS #8 private key, encrypted
*/
std::string PEM_encode_encrypted_pbkdf_iter(const Private_Key& key,
                                            RandomNumberGenerator& rng,
                                            std::string_view pass,
                                            size_t pbkdf_iterations,
                                            std::string_view cipher,
                                            std::string_view pbkdf_hash) {
   return PEM_Code::encode(PKCS8::BER_encode_encrypted_pbkdf_iter(key, rng, pass, pbkdf_iterations, cipher, pbkdf_hash),
                           "ENCRYPTED PRIVATE KEY");
}

/*
* BER encode a PKCS #8 private key, encrypted
*/
std::vector<uint8_t> BER_encode_encrypted_pbkdf_msec(const Private_Key& key,
                                                     RandomNumberGenerator& rng,
                                                     std::string_view pass,
                                                     std::chrono::milliseconds pbkdf_msec,
                                                     size_t* pbkdf_iterations,
                                                     std::string_view cipher,
                                                     std::string_view pbkdf_hash) {
#if defined(BOTAN_HAS_PKCS5_PBES2)
   const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =
      pbes2_encrypt_msec(key.private_key_info(),
                         pass,
                         pbkdf_msec,
                         pbkdf_iterations,
                         cipher.empty() ? "AES-256/CBC" : cipher,
                         pbkdf_hash.empty() ? "SHA-256" : pbkdf_hash,
                         rng);

   std::vector<uint8_t> output;
   DER_Encoder(output)
      .start_sequence()
      .encode(pbe_info.first)
      .encode(pbe_info.second, ASN1_Type::OctetString)
      .end_cons();

   return output;
#else
   BOTAN_UNUSED(key, rng, pass, pbkdf_msec, pbkdf_iterations, cipher, pbkdf_hash);
   throw Encoding_Error("BER_encode_encrypted_pbkdf_msec cannot encrypt because PBES2 disabled in build");
#endif
}

/*
* PEM encode a PKCS #8 private key, encrypted
*/
std::string PEM_encode_encrypted_pbkdf_msec(const Private_Key& key,
                                            RandomNumberGenerator& rng,
                                            std::string_view pass,
                                            std::chrono::milliseconds pbkdf_msec,
                                            size_t* pbkdf_iterations,
                                            std::string_view cipher,
                                            std::string_view pbkdf_hash) {
   return PEM_Code::encode(
      PKCS8::BER_encode_encrypted_pbkdf_msec(key, rng, pass, pbkdf_msec, pbkdf_iterations, cipher, pbkdf_hash),
      "ENCRYPTED PRIVATE KEY");
}

namespace {

/*
* Extract a private key (encrypted/unencrypted) and return it
*/
std::unique_ptr<Private_Key> load_key(DataSource& source,
                                      const std::function<std::string()>& get_pass,
                                      bool is_encrypted) {
   AlgorithmIdentifier alg_id;
   secure_vector<uint8_t> pkcs8_key = PKCS8_decode(source, get_pass, alg_id, is_encrypted);

   const std::string alg_name = alg_id.oid().human_name_or_empty();
   if(alg_name.empty()) {
      throw PKCS8_Exception(fmt("Unknown algorithm OID {}", alg_id.oid()));
   }

   return load_private_key(alg_id, pkcs8_key);
}

}  // namespace

/*
* Extract an encrypted private key and return it
*/
std::unique_ptr<Private_Key> load_key(DataSource& source, const std::function<std::string()>& get_pass) {
   return load_key(source, get_pass, true);
}

std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source,
                                      const std::function<std::string()>& get_passphrase) {
   Botan::DataSource_Memory ds(source);
   return load_key(ds, get_passphrase);
}

std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source, std::string_view pass) {
   Botan::DataSource_Memory ds(source);
   return load_key(ds, pass);
}

std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source) {
   Botan::DataSource_Memory ds(source);
   return load_key(ds);
}

/*
* Extract an encrypted private key and return it
*/
std::unique_ptr<Private_Key> load_key(DataSource& source, std::string_view pass) {
   return load_key(
      source, [pass]() { return std::string(pass); }, true);
}

/*
* Extract an unencrypted private key and return it
*/
std::unique_ptr<Private_Key> load_key(DataSource& source) {
   auto fail_fn = []() -> std::string {
      throw PKCS8_Exception("Internal error: Attempt to read password for unencrypted key");
   };

   return load_key(source, fail_fn, false);
}

}  // namespace Botan::PKCS8

1	/*
2	* PKCS #8
3	* (C) 1999-2010,2014,2018 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/pkcs8.h>
9
10	#include <botan/asn1_obj.h>
11	#include <botan/ber_dec.h>
12	#include <botan/der_enc.h>
13	#include <botan/pem.h>
14	#include <botan/pk_algs.h>
15	#include <botan/rng.h>
16	#include <botan/internal/fmt.h>
17	#include <botan/internal/scan_name.h>
18
19	#if defined(BOTAN_HAS_PKCS5_PBES2)
20	#include <botan/internal/pbes2.h>
21	#endif
22
23	namespace Botan::PKCS8 {
24
25	namespace {
26
27	/*
28	* Get info from an EncryptedPrivateKeyInfo
29	*/
30	secure_vector<uint8_t> PKCS8_extract(DataSource& source, AlgorithmIdentifier& pbe_alg_id) {	223✔
31	secure_vector<uint8_t> key_data;	223✔
32
33	BER_Decoder(source).start_sequence().decode(pbe_alg_id).decode(key_data, ASN1_Type::OctetString).verify_end();	446✔
34
35	return key_data;	223✔
36	}	×
37
38	/*
39	* PEM decode and/or decrypt a private key
40	*/
41	secure_vector<uint8_t> PKCS8_decode(DataSource& source,	4,287✔
42	const std::function<std::string()>& get_passphrase,
43	AlgorithmIdentifier& pk_alg_id,
44	bool is_encrypted) {
45	AlgorithmIdentifier pbe_alg_id;	4,287✔
46	secure_vector<uint8_t> key_data, key;	4,287✔
47
48	try {	4,287✔
49	if(ASN1::maybe_BER(source) && !PEM_Code::matches(source)) {	4,287✔
50	if(is_encrypted) {	1,879✔
51	key_data = PKCS8_extract(source, pbe_alg_id);	230✔
52	} else {
53	// todo read more efficiently
54	while(!source.end_of_data()) {	733,791✔
55	uint8_t b;	732,027✔
56	size_t read = source.read_byte(b);	732,027✔
57	if(read) {	732,027✔
58	key_data.push_back(b);	732,027✔
59	}
60	}
61	}
62	} else {
63	std::string label;	2,407✔
64	key_data = PEM_Code::decode(source, label);	4,752✔
65
66	// todo remove autodetect for pem as well?
67	if(label == "PRIVATE KEY") {	2,345✔
68	is_encrypted = false;
69	} else if(label == "ENCRYPTED PRIVATE KEY") {	136✔
70	DataSource_Memory key_source(key_data);	108✔
71	key_data = PKCS8_extract(key_source, pbe_alg_id);	216✔
72	} else {	108✔
73	throw PKCS8_Exception(fmt("Unknown PEM label '{}'", label));	56✔
74	}
75	}	2,407✔
76
77	if(key_data.empty()) {	4,196✔
78	throw PKCS8_Exception("No key data found");	×
79	}
80	} catch(Decoding_Error& e) {	91✔
81	throw Decoding_Error("PKCS #8 private key decoding", e);	83✔
82	}	83✔
83
84	try {	4,196✔
85	if(is_encrypted) {	4,196✔
86	if(pbe_alg_id.oid().to_formatted_string() != "PBE-PKCS5v20") {	223✔
87	throw PKCS8_Exception(fmt("Unknown PBE type {}", pbe_alg_id.oid()));	×
88	}
89
90	#if defined(BOTAN_HAS_PKCS5_PBES2)
91	key = pbes2_decrypt(key_data, get_passphrase(), pbe_alg_id.parameters());	813✔
92	#else
93	BOTAN_UNUSED(get_passphrase);
94	throw Decoding_Error("Private key is encrypted but PBES2 was disabled in build");
95	#endif
96	} else {
97	key = key_data;	3,973✔
98	}
99
100	BER_Decoder(key)	4,196✔
101	.start_sequence()	8,298✔
102	.decode_and_check<size_t>(0, "Unknown PKCS #8 version number")	8,103✔
103	.decode(pk_alg_id)	4,001✔
104	.decode(key, ASN1_Type::OctetString)	3,930✔
105	.discard_remaining()	3,930✔
106	.end_cons();	3,930✔
107	} catch(std::exception& e) {	266✔
108	throw Decoding_Error("PKCS #8 private key decoding", e);	266✔
109	}	266✔
110	return key;	7,860✔
111	}	4,644✔
112
113	} // namespace
114
115	/*
116	* PEM encode a PKCS #8 private key, unencrypted
117	*/
118	std::string PEM_encode(const Private_Key& key) {	63✔
119	return PEM_Code::encode(key.private_key_info(), "PRIVATE KEY");	189✔
120	}
121
122	#if defined(BOTAN_HAS_PKCS5_PBES2)
123
124	namespace {
125
126	std::pair<std::string, std::string> choose_pbe_params(std::string_view pbe_algo, std::string_view key_algo) {	194✔
127	if(pbe_algo.empty()) {	194✔
128	/*
129	* For algorithms where we are using a non-RFC format anyway, default to
130	* SIV or GCM. For others (RSA, ECDSA, ...) default to something widely
131	* compatible.
132	*/
133	const bool nonstandard_pk = (key_algo == "McEliece" \|\| key_algo == "XMSS");	26✔
134
135	if(nonstandard_pk) {	26✔
136	#if defined(BOTAN_HAS_AEAD_SIV) && defined(BOTAN_HAS_SHA2_64)
137	return std::make_pair("AES-256/SIV", "SHA-512");	×
138	#elif defined(BOTAN_HAS_AEAD_GCM) && defined(BOTAN_HAS_SHA2_64)
139	return std::make_pair("AES-256/GCM", "SHA-512");
140	#endif
141	}
142
143	// Default is something compatible with everyone else
144	return std::make_pair("AES-256/CBC", "SHA-256");	26✔
145	}
146
147	SCAN_Name request(pbe_algo);	168✔
148
149	if(request.arg_count() != 2 \|\| (request.algo_name() != "PBE-PKCS5v20" && request.algo_name() != "PBES2")) {	672✔
150	throw Invalid_Argument(fmt("Unsupported PBE '{}'", pbe_algo));	×
151	}
152
153	return std::make_pair(request.arg(0), request.arg(1));	336✔
154	}	168✔
155
156	} // namespace
157
158	#endif
159
160	/*
161	* BER encode a PKCS #8 private key, encrypted
162	*/
163	std::vector<uint8_t> BER_encode(const Private_Key& key,	194✔
164	RandomNumberGenerator& rng,
165	std::string_view pass,
166	std::chrono::milliseconds msec,
167	std::string_view pbe_algo) {
168	#if defined(BOTAN_HAS_PKCS5_PBES2)
169	const auto pbe_params = choose_pbe_params(pbe_algo, key.algo_name());	194✔
170
171	const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =	194✔
172	pbes2_encrypt_msec(PKCS8::BER_encode(key), pass, msec, nullptr, pbe_params.first, pbe_params.second, rng);	194✔
173
174	std::vector<uint8_t> output;	194✔
175	DER_Encoder der(output);	194✔
176	der.start_sequence().encode(pbe_info.first).encode(pbe_info.second, ASN1_Type::OctetString).end_cons();	194✔
177
178	return output;	194✔
179	#else
180	BOTAN_UNUSED(key, rng, pass, msec, pbe_algo);
181	throw Encoding_Error("PKCS8::BER_encode cannot encrypt because PBES2 was disabled in build");
182	#endif
183	}	194✔
184
185	/*
186	* PEM encode a PKCS #8 private key, encrypted
187	*/
188	std::string PEM_encode(const Private_Key& key,	104✔
189	RandomNumberGenerator& rng,
190	std::string_view pass,
191	std::chrono::milliseconds msec,
192	std::string_view pbe_algo) {
193	if(pass.empty()) {	104✔
194	return PEM_encode(key);	×
195	}
196
197	return PEM_Code::encode(PKCS8::BER_encode(key, rng, pass, msec, pbe_algo), "ENCRYPTED PRIVATE KEY");	312✔
198	}
199
200	/*
201	* BER encode a PKCS #8 private key, encrypted
202	*/
203	std::vector<uint8_t> BER_encode_encrypted_pbkdf_iter(const Private_Key& key,	44✔
204	RandomNumberGenerator& rng,
205	std::string_view pass,
206	size_t pbkdf_iterations,
207	std::string_view cipher,
208	std::string_view pbkdf_hash) {
209	#if defined(BOTAN_HAS_PKCS5_PBES2)
210	const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =	44✔
211	pbes2_encrypt_iter(key.private_key_info(),	88✔
212	pass,
213	pbkdf_iterations,
214	cipher.empty() ? "AES-256/CBC" : cipher,	44✔
215	pbkdf_hash.empty() ? "SHA-256" : pbkdf_hash,	44✔
216	rng);	132✔
217
218	std::vector<uint8_t> output;	44✔
219	DER_Encoder der(output);	44✔
220	der.start_sequence().encode(pbe_info.first).encode(pbe_info.second, ASN1_Type::OctetString).end_cons();	44✔
221
222	return output;	44✔
223
224	#else
225	BOTAN_UNUSED(key, rng, pass, pbkdf_iterations, cipher, pbkdf_hash);
226	throw Encoding_Error("PKCS8::BER_encode_encrypted_pbkdf_iter cannot encrypt because PBES2 disabled in build");
227	#endif
228	}	44✔
229
230	/*
231	* PEM encode a PKCS #8 private key, encrypted
232	*/
233	std::string PEM_encode_encrypted_pbkdf_iter(const Private_Key& key,	22✔
234	RandomNumberGenerator& rng,
235	std::string_view pass,
236	size_t pbkdf_iterations,
237	std::string_view cipher,
238	std::string_view pbkdf_hash) {
239	return PEM_Code::encode(PKCS8::BER_encode_encrypted_pbkdf_iter(key, rng, pass, pbkdf_iterations, cipher, pbkdf_hash),	22✔
240	"ENCRYPTED PRIVATE KEY");	44✔
241	}
242
243	/*
244	* BER encode a PKCS #8 private key, encrypted
245	*/
246	std::vector<uint8_t> BER_encode_encrypted_pbkdf_msec(const Private_Key& key,	19✔
247	RandomNumberGenerator& rng,
248	std::string_view pass,
249	std::chrono::milliseconds pbkdf_msec,
250	size_t* pbkdf_iterations,
251	std::string_view cipher,
252	std::string_view pbkdf_hash) {
253	#if defined(BOTAN_HAS_PKCS5_PBES2)
254	const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =	19✔
255	pbes2_encrypt_msec(key.private_key_info(),	38✔
256	pass,
257	pbkdf_msec,
258	pbkdf_iterations,
259	cipher.empty() ? "AES-256/CBC" : cipher,	19✔
260	pbkdf_hash.empty() ? "SHA-256" : pbkdf_hash,	19✔
261	rng);	27✔
262
263	std::vector<uint8_t> output;	19✔
264	DER_Encoder(output)	38✔
265	.start_sequence()	19✔
266	.encode(pbe_info.first)	19✔
267	.encode(pbe_info.second, ASN1_Type::OctetString)	19✔
268	.end_cons();	19✔
269
270	return output;	19✔
271	#else
272	BOTAN_UNUSED(key, rng, pass, pbkdf_msec, pbkdf_iterations, cipher, pbkdf_hash);
273	throw Encoding_Error("BER_encode_encrypted_pbkdf_msec cannot encrypt because PBES2 disabled in build");
274	#endif
275	}	19✔
276
277	/*
278	* PEM encode a PKCS #8 private key, encrypted
279	*/
280	std::string PEM_encode_encrypted_pbkdf_msec(const Private_Key& key,	4✔
281	RandomNumberGenerator& rng,
282	std::string_view pass,
283	std::chrono::milliseconds pbkdf_msec,
284	size_t* pbkdf_iterations,
285	std::string_view cipher,
286	std::string_view pbkdf_hash) {
287	return PEM_Code::encode(	4✔
288	PKCS8::BER_encode_encrypted_pbkdf_msec(key, rng, pass, pbkdf_msec, pbkdf_iterations, cipher, pbkdf_hash),	4✔
289	"ENCRYPTED PRIVATE KEY");	8✔
290	}
291
292	namespace {
293
294	/*
295	* Extract a private key (encrypted/unencrypted) and return it
296	*/
297	std::unique_ptr<Private_Key> load_key(DataSource& source,	4,287✔
298	const std::function<std::string()>& get_pass,
299	bool is_encrypted) {
300	AlgorithmIdentifier alg_id;	4,287✔
301	secure_vector<uint8_t> pkcs8_key = PKCS8_decode(source, get_pass, alg_id, is_encrypted);	4,287✔
302
303	const std::string alg_name = alg_id.oid().human_name_or_empty();	3,930✔
304	if(alg_name.empty()) {	3,930✔
305	throw PKCS8_Exception(fmt("Unknown algorithm OID {}", alg_id.oid()));	64✔
306	}
307
308	return load_private_key(alg_id, pkcs8_key);	7,021✔
309	}	8,217✔
310
311	} // namespace
312
313	/*
314	* Extract an encrypted private key and return it
315	*/
316	std::unique_ptr<Private_Key> load_key(DataSource& source, const std::function<std::string()>& get_pass) {	11✔
317	return load_key(source, get_pass, true);	11✔
318	}
319
320	std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source,	×
321	const std::function<std::string()>& get_passphrase) {
322	Botan::DataSource_Memory ds(source);	×
323	return load_key(ds, get_passphrase);	×
324	}	×
325
326	std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source, std::string_view pass) {	×
327	Botan::DataSource_Memory ds(source);	×
328	return load_key(ds, pass);	×
329	}	×
330
331	std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source) {	×
332	Botan::DataSource_Memory ds(source);	×
333	return load_key(ds);	×
334	}	×
335
336	/*
337	* Extract an encrypted private key and return it
338	*/
339	std::unique_ptr<Private_Key> load_key(DataSource& source, std::string_view pass) {	252✔
340	return load_key(	252✔
341	source, [pass]() { return std::string(pass); }, true);	717✔
342	}
343
344	/*
345	* Extract an unencrypted private key and return it
346	*/
347	std::unique_ptr<Private_Key> load_key(DataSource& source) {	4,024✔
348	auto fail_fn = []() -> std::string {	4,024✔
349	throw PKCS8_Exception("Internal error: Attempt to read password for unencrypted key");	×
350	};
351
352	return load_key(source, fail_fn, false);	6,852✔
353	}
354
355	} // namespace Botan::PKCS8

randombit / botan / 5230455705

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