23926907288

Committed 02 Apr 2026 11:34PM UTC coverage: 89.465% (-0.06%) from 89.52%

Build # 23926907288

Build Type

Pull #5514

github

Committed by

web-flow

Commit Message

Merge cd041e548 into fc221e724

Pull Request Pull Request #5514: Add BER_Decoder::Limits

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105546 of 117974 relevant lines covered (89.47%)

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88.49

/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/assert.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, BER_Decoder::Limits::DER())
      .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;
   secure_vector<uint8_t> 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(auto b = source.read_byte()) {
               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, BER_Decoder::Limits::DER())
         .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");
   }

   const 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/assert.h>
12	#include <botan/ber_dec.h>
13	#include <botan/der_enc.h>
14	#include <botan/pem.h>
15	#include <botan/pk_algs.h>
16	#include <botan/rng.h>
17	#include <botan/internal/fmt.h>
18	#include <botan/internal/scan_name.h>
19
20	#if defined(BOTAN_HAS_PKCS5_PBES2)
21	#include <botan/internal/pbes2.h>
22	#endif
23
24	namespace Botan::PKCS8 {
25
26	namespace {
27
28	/*
29	* Get info from an EncryptedPrivateKeyInfo
30	*/
31	secure_vector<uint8_t> PKCS8_extract(DataSource& source, AlgorithmIdentifier& pbe_alg_id) {	501✔
32	secure_vector<uint8_t> key_data;	501✔
33
34	BER_Decoder(source, BER_Decoder::Limits::DER())	1,002✔
35	.start_sequence()	501✔
36	.decode(pbe_alg_id)	501✔
37	.decode(key_data, ASN1_Type::OctetString)	501✔
38	.verify_end();	501✔
39
40	return key_data;	501✔
41	}	×
42
43	/*
44	* PEM decode and/or decrypt a private key
45	*/
46	secure_vector<uint8_t> PKCS8_decode(DataSource& source,	4,784✔
47	const std::function<std::string()>& get_passphrase,
48	AlgorithmIdentifier& pk_alg_id,
49	bool is_encrypted) {
50	AlgorithmIdentifier pbe_alg_id;	4,784✔
51	secure_vector<uint8_t> key_data;	4,784✔
52	secure_vector<uint8_t> key;	4,784✔
53
54	try {	4,784✔
55	if(ASN1::maybe_BER(source) && !PEM_Code::matches(source)) {	4,784✔
56	if(is_encrypted) {	2,172✔
57	key_data = PKCS8_extract(source, pbe_alg_id);	510✔
58	} else {
59	// todo read more efficiently
60	while(auto b = source.read_byte()) {	1,204,643✔
61	key_data.push_back(*b);	1,202,726✔
62	}	1,202,726✔
63	}
64	} else {
65	std::string label;	2,611✔
66	key_data = PEM_Code::decode(source, label);	5,160✔
67
68	// todo remove autodetect for pem as well?
69	if(label == "PRIVATE KEY") {	2,549✔
70	is_encrypted = false;
71	} else if(label == "ENCRYPTED PRIVATE KEY") {	274✔
72	DataSource_Memory key_source(key_data);	336✔
73	key_data = PKCS8_extract(key_source, pbe_alg_id);	492✔
74	} else {	246✔
75	throw PKCS8_Exception(fmt("Unknown PEM label '{}'", label));	28✔
76	}
77	}	2,611✔
78
79	if(key_data.empty()) {	4,693✔
80	throw PKCS8_Exception("No key data found");	×
81	}
82	} catch(Decoding_Error& e) {	91✔
83	throw Decoding_Error("PKCS #8 private key decoding", e);	83✔
84	}	83✔
85
86	try {	4,693✔
87	if(is_encrypted) {	4,693✔
88	if(pbe_alg_id.oid().to_formatted_string() != "PBE-PKCS5v20") {	501✔
89	throw PKCS8_Exception(fmt("Unknown PBE type {}", pbe_alg_id.oid()));	×
90	}
91
92	#if defined(BOTAN_HAS_PKCS5_PBES2)
93	key = pbes2_decrypt(key_data, get_passphrase(), pbe_alg_id.parameters());	1,503✔
94	#else
95	BOTAN_UNUSED(get_passphrase);
96	throw Decoding_Error("Private key is encrypted but PBES2 was disabled in build");
97	#endif
98	} else {
99	key = key_data;	4,192✔
100	}
101
102	BER_Decoder(key, BER_Decoder::Limits::DER())	10,604✔
103	.start_sequence()	3,546✔
104	.decode_and_check<size_t>(0, "Unknown PKCS #8 version number")	7,026✔
105	.decode(pk_alg_id)	3,480✔
106	.decode(key, ASN1_Type::OctetString)	3,475✔
107	.discard_remaining()	3,475✔
108	.end_cons();	3,475✔
109	} catch(std::exception& e) {	1,218✔
110	throw Decoding_Error("PKCS #8 private key decoding", e);	1,218✔
111	}	1,218✔
112	return key;	6,950✔
113	}	6,093✔
114
115	} // namespace
116
117	/*
118	* PEM encode a PKCS #8 private key, unencrypted
119	*/
120	std::string PEM_encode(const Private_Key& key) {	57✔
121	return PEM_Code::encode(key.private_key_info(), "PRIVATE KEY");	171✔
122	}
123
124	#if defined(BOTAN_HAS_PKCS5_PBES2)
125
126	namespace {
127
128	std::pair<std::string, std::string> choose_pbe_params(std::string_view pbe_algo, std::string_view key_algo) {	470✔
129	if(pbe_algo.empty()) {	470✔
130	/*
131	* For algorithms where we are using a non-RFC format anyway, default to
132	* SIV or GCM. For others (RSA, ECDSA, ...) default to something widely
133	* compatible.
134	*/
135	const bool nonstandard_pk = (key_algo == "McEliece" \|\| key_algo == "XMSS");	26✔
136
137	if(nonstandard_pk) {	26✔
138	#if defined(BOTAN_HAS_AEAD_SIV) && defined(BOTAN_HAS_SHA2_64)
139	return std::make_pair("AES-256/SIV", "SHA-512");	×
140	#elif defined(BOTAN_HAS_AEAD_GCM) && defined(BOTAN_HAS_SHA2_64)
141	return std::make_pair("AES-256/GCM", "SHA-512");
142	#endif
143	}
144
145	// Default is something compatible with everyone else
146	return std::make_pair("AES-256/CBC", "SHA-256");	26✔
147	}
148
149	const SCAN_Name request(pbe_algo);	444✔
150
151	if(request.arg_count() != 2 \|\| (request.algo_name() != "PBE-PKCS5v20" && request.algo_name() != "PBES2")) {	444✔
152	throw Invalid_Argument(fmt("Unsupported PBE '{}'", pbe_algo));	×
153	}
154
155	return std::make_pair(request.arg(0), request.arg(1));	888✔
156	}	444✔
157
158	} // namespace
159
160	#endif
161
162	/*
163	* BER encode a PKCS #8 private key, encrypted
164	*/
165	std::vector<uint8_t> BER_encode(const Private_Key& key,	470✔
166	RandomNumberGenerator& rng,
167	std::string_view pass,
168	std::chrono::milliseconds msec,
169	std::string_view pbe_algo) {
170	#if defined(BOTAN_HAS_PKCS5_PBES2)
171	const auto pbe_params = choose_pbe_params(pbe_algo, key.algo_name());	470✔
172
173	const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =	470✔
174	pbes2_encrypt_msec(PKCS8::BER_encode(key), pass, msec, nullptr, pbe_params.first, pbe_params.second, rng);	470✔
175
176	std::vector<uint8_t> output;	470✔
177	DER_Encoder der(output);	470✔
178	der.start_sequence().encode(pbe_info.first).encode(pbe_info.second, ASN1_Type::OctetString).end_cons();	470✔
179
180	return output;	940✔
181	#else
182	BOTAN_UNUSED(key, rng, pass, msec, pbe_algo);
183	throw Encoding_Error("PKCS8::BER_encode cannot encrypt because PBES2 was disabled in build");
184	#endif
185	}	940✔
186
187	/*
188	* PEM encode a PKCS #8 private key, encrypted
189	*/
190	std::string PEM_encode(const Private_Key& key,	242✔
191	RandomNumberGenerator& rng,
192	std::string_view pass,
193	std::chrono::milliseconds msec,
194	std::string_view pbe_algo) {
195	if(pass.empty()) {	242✔
196	return PEM_encode(key);	×
197	}
198
199	return PEM_Code::encode(PKCS8::BER_encode(key, rng, pass, msec, pbe_algo), "ENCRYPTED PRIVATE KEY");	726✔
200	}
201
202	/*
203	* BER encode a PKCS #8 private key, encrypted
204	*/
205	std::vector<uint8_t> BER_encode_encrypted_pbkdf_iter(const Private_Key& key,	48✔
206	RandomNumberGenerator& rng,
207	std::string_view pass,
208	size_t pbkdf_iterations,
209	std::string_view cipher,
210	std::string_view pbkdf_hash) {
211	#if defined(BOTAN_HAS_PKCS5_PBES2)
212	const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =	48✔
213	pbes2_encrypt_iter(key.private_key_info(),	48✔
214	pass,
215	pbkdf_iterations,
216	cipher.empty() ? "AES-256/CBC" : cipher,	48✔
217	pbkdf_hash.empty() ? "SHA-256" : pbkdf_hash,	48✔
218	rng);	96✔
219
220	std::vector<uint8_t> output;	48✔
221	DER_Encoder der(output);	48✔
222	der.start_sequence().encode(pbe_info.first).encode(pbe_info.second, ASN1_Type::OctetString).end_cons();	48✔
223
224	return output;	48✔
225
226	#else
227	BOTAN_UNUSED(key, rng, pass, pbkdf_iterations, cipher, pbkdf_hash);
228	throw Encoding_Error("PKCS8::BER_encode_encrypted_pbkdf_iter cannot encrypt because PBES2 disabled in build");
229	#endif
230	}	48✔
231
232	/*
233	* PEM encode a PKCS #8 private key, encrypted
234	*/
235	std::string PEM_encode_encrypted_pbkdf_iter(const Private_Key& key,	24✔
236	RandomNumberGenerator& rng,
237	std::string_view pass,
238	size_t pbkdf_iterations,
239	std::string_view cipher,
240	std::string_view pbkdf_hash) {
241	return PEM_Code::encode(PKCS8::BER_encode_encrypted_pbkdf_iter(key, rng, pass, pbkdf_iterations, cipher, pbkdf_hash),	24✔
242	"ENCRYPTED PRIVATE KEY");	48✔
243	}
244
245	/*
246	* BER encode a PKCS #8 private key, encrypted
247	*/
248	std::vector<uint8_t> BER_encode_encrypted_pbkdf_msec(const Private_Key& key,	20✔
249	RandomNumberGenerator& rng,
250	std::string_view pass,
251	std::chrono::milliseconds pbkdf_msec,
252	size_t* pbkdf_iterations,
253	std::string_view cipher,
254	std::string_view pbkdf_hash) {
255	#if defined(BOTAN_HAS_PKCS5_PBES2)
256	const std::pair<AlgorithmIdentifier, std::vector<uint8_t>> pbe_info =	20✔
257	pbes2_encrypt_msec(key.private_key_info(),	20✔
258	pass,
259	pbkdf_msec,
260	pbkdf_iterations,
261	cipher.empty() ? "AES-256/CBC" : cipher,	20✔
262	pbkdf_hash.empty() ? "SHA-256" : pbkdf_hash,	20✔
263	rng);	40✔
264
265	std::vector<uint8_t> output;	20✔
266	DER_Encoder(output)	40✔
267	.start_sequence()	20✔
268	.encode(pbe_info.first)	20✔
269	.encode(pbe_info.second, ASN1_Type::OctetString)	20✔
270	.end_cons();	20✔
271
272	return output;	20✔
273	#else
274	BOTAN_UNUSED(key, rng, pass, pbkdf_msec, pbkdf_iterations, cipher, pbkdf_hash);
275	throw Encoding_Error("BER_encode_encrypted_pbkdf_msec cannot encrypt because PBES2 disabled in build");
276	#endif
277	}	20✔
278
279	/*
280	* PEM encode a PKCS #8 private key, encrypted
281	*/
282	std::string PEM_encode_encrypted_pbkdf_msec(const Private_Key& key,	4✔
283	RandomNumberGenerator& rng,
284	std::string_view pass,
285	std::chrono::milliseconds pbkdf_msec,
286	size_t* pbkdf_iterations,
287	std::string_view cipher,
288	std::string_view pbkdf_hash) {
289	return PEM_Code::encode(	4✔
290	PKCS8::BER_encode_encrypted_pbkdf_msec(key, rng, pass, pbkdf_msec, pbkdf_iterations, cipher, pbkdf_hash),	4✔
291	"ENCRYPTED PRIVATE KEY");	8✔
292	}
293
294	namespace {
295
296	/*
297	* Extract a private key (encrypted/unencrypted) and return it
298	*/
299	std::unique_ptr<Private_Key> load_key(DataSource& source,	4,784✔
300	const std::function<std::string()>& get_pass,
301	bool is_encrypted) {
302	AlgorithmIdentifier alg_id;	4,784✔
303	secure_vector<uint8_t> pkcs8_key = PKCS8_decode(source, get_pass, alg_id, is_encrypted);	4,784✔
304
305	const std::string alg_name = alg_id.oid().human_name_or_empty();	3,475✔
306	if(alg_name.empty()) {	3,475✔
307	throw PKCS8_Exception(fmt("Unknown algorithm OID {}", alg_id.oid()));	×
308	}
309
310	return load_private_key(alg_id, pkcs8_key);	6,531✔
311	}	8,259✔
312
313	} // namespace
314
315	/*
316	* Extract an encrypted private key and return it
317	*/
318	std::unique_ptr<Private_Key> load_key(DataSource& source, const std::function<std::string()>& get_pass) {	11✔
319	return load_key(source, get_pass, true);	11✔
320	}
321
322	std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source,	×
323	const std::function<std::string()>& get_passphrase) {
324	Botan::DataSource_Memory ds(source);	×
325	return load_key(ds, get_passphrase);	×
326	}	×
327
328	std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source, std::string_view pass) {	×
329	Botan::DataSource_Memory ds(source);	×
330	return load_key(ds, pass);	×
331	}	×
332
333	std::unique_ptr<Private_Key> load_key(std::span<const uint8_t> source) {	14✔
334	Botan::DataSource_Memory ds(source);	14✔
335	return load_key(ds);	14✔
336	}	14✔
337
338	/*
339	* Extract an encrypted private key and return it
340	*/
341	std::unique_ptr<Private_Key> load_key(DataSource& source, std::string_view pass) {	526✔
342	return load_key(	526✔
343	source, [pass]() { return std::string(pass); }, true);	1,543✔
344	}
345
346	/*
347	* Extract an unencrypted private key and return it
348	*/
349	std::unique_ptr<Private_Key> load_key(DataSource& source) {	4,247✔
350	auto fail_fn = []() -> std::string {	4,247✔
351	throw PKCS8_Exception("Internal error: Attempt to read password for unencrypted key");	×
352	};
353
354	return load_key(source, fail_fn, false);	6,766✔
355	}
356
357	} // namespace Botan::PKCS8

randombit / botan / 23926907288

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