12965174500

Committed 25 Jan 2025 01:02PM UTC coverage: 91.219% (-0.008%) from 91.227%

Build # 12965174500

Build Type

Pull #4592

github

Committed by

web-flow

Commit Message

Merge 2e35a9bd1 into 79027d241

Pull Request Pull Request #4592: Some initial refactoring for splitting public and private keys

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70.97

/src/lib/pubkey/pk_keys.cpp

/*
* PK Key Types
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/pk_keys.h>

#include <botan/der_enc.h>
#include <botan/hash.h>
#include <botan/hex.h>
#include <botan/pk_ops.h>
#include <botan/internal/fmt.h>

namespace Botan {

const BigInt& Asymmetric_Key::get_int_field(std::string_view field) const {
   throw Unknown_PK_Field_Name(algo_name(), field);
}

OID Asymmetric_Key::object_identifier() const {
   try {
      return OID::from_string(algo_name());
   } catch(Lookup_Error&) {
      throw Lookup_Error(fmt("Public key algorithm {} has no defined OIDs", algo_name()));
   }
}

Signature_Format Asymmetric_Key::_default_x509_signature_format() const {
   if(_signature_element_size()) {
      return Signature_Format::DerSequence;
   } else {
      return Signature_Format::Standard;
   }
}

std::string create_hex_fingerprint(const uint8_t bits[], size_t bits_len, std::string_view hash_name) {
   auto hash_fn = HashFunction::create_or_throw(hash_name);
   const std::string hex_hash = hex_encode(hash_fn->process(bits, bits_len));

   std::string fprint;

   for(size_t i = 0; i != hex_hash.size(); i += 2) {
      if(i != 0) {
         fprint.push_back(':');
      }

      fprint.push_back(hex_hash[i]);
      fprint.push_back(hex_hash[i + 1]);
   }

   return fprint;
}

std::vector<uint8_t> Public_Key::subject_public_key() const {
   std::vector<uint8_t> output;

   DER_Encoder(output)
      .start_sequence()
      .encode(algorithm_identifier())
      .encode(public_key_bits(), ASN1_Type::BitString)
      .end_cons();

   return output;
}

secure_vector<uint8_t> Private_Key::private_key_info() const {
   const size_t PKCS8_VERSION = 0;

   return DER_Encoder()
      .start_sequence()
      .encode(PKCS8_VERSION)
      .encode(pkcs8_algorithm_identifier())
      .encode(private_key_bits(), ASN1_Type::OctetString)
      .end_cons()
      .get_contents();
}

secure_vector<uint8_t> Private_Key::raw_private_key_bits() const {
   throw Not_Implemented(algo_name() + " does not implement raw_private_key_bits");
}

/*
* Hash of the X.509 subjectPublicKey encoding
*/
std::string Public_Key::fingerprint_public(std::string_view hash_algo) const {
   return create_hex_fingerprint(subject_public_key(), hash_algo);
}

/*
* Hash of the PKCS #8 encoding for this key object
*/
std::string Private_Key::fingerprint_private(std::string_view hash_algo) const {
   return create_hex_fingerprint(private_key_bits(), hash_algo);
}

std::unique_ptr<PK_Ops::Encryption> Public_Key::create_encryption_op(RandomNumberGenerator& /*rng*/,
                                                                     std::string_view /*params*/,
                                                                     std::string_view /*provider*/) const {
   throw Lookup_Error(fmt("{} does not support encryption", algo_name()));
}

std::unique_ptr<PK_Ops::KEM_Encryption> Public_Key::create_kem_encryption_op(std::string_view /*params*/,
                                                                             std::string_view /*provider*/) const {
   throw Lookup_Error(fmt("{} does not support KEM encryption", algo_name()));
}

std::unique_ptr<PK_Ops::Verification> Public_Key::create_verification_op(std::string_view /*params*/,
                                                                         std::string_view /*provider*/) const {
   throw Lookup_Error(fmt("{} does not support verification", algo_name()));
}

std::unique_ptr<PK_Ops::Verification> Public_Key::create_x509_verification_op(const AlgorithmIdentifier& /*params*/,
                                                                              std::string_view /*provider*/) const {
   throw Lookup_Error(fmt("{} does not support X.509 verification", algo_name()));
}

std::unique_ptr<PK_Ops::Decryption> Private_Key::create_decryption_op(RandomNumberGenerator& /*rng*/,
                                                                      std::string_view /*params*/,
                                                                      std::string_view /*provider*/) const {
   throw Lookup_Error(fmt("{} does not support decryption", algo_name()));
}

std::unique_ptr<PK_Ops::KEM_Decryption> Private_Key::create_kem_decryption_op(RandomNumberGenerator& /*rng*/,
                                                                              std::string_view /*params*/,
                                                                              std::string_view /*provider*/) const {
   throw Lookup_Error(fmt("{} does not support KEM decryption", algo_name()));
}

std::unique_ptr<PK_Ops::Signature> Private_Key::create_signature_op(RandomNumberGenerator& /*rng*/,
                                                                    std::string_view /*params*/,
                                                                    std::string_view /*provider*/) const {
   throw Lookup_Error(fmt("{} does not support signatures", algo_name()));
}

std::unique_ptr<PK_Ops::Key_Agreement> Private_Key::create_key_agreement_op(RandomNumberGenerator& /*rng*/,
                                                                            std::string_view /*params*/,
                                                                            std::string_view /*provider*/) const {
   throw Lookup_Error(fmt("{} does not support key agreement", algo_name()));
}

}  // namespace Botan

1	/*
2	* PK Key Types
3	* (C) 1999-2007 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/pk_keys.h>
9
10	#include <botan/der_enc.h>
11	#include <botan/hash.h>
12	#include <botan/hex.h>
13	#include <botan/pk_ops.h>
14	#include <botan/internal/fmt.h>
15
16	namespace Botan {
17
18	const BigInt& Asymmetric_Key::get_int_field(std::string_view field) const {	4✔
19	throw Unknown_PK_Field_Name(algo_name(), field);	8✔
20	}
21
22	OID Asymmetric_Key::object_identifier() const {	3,349✔
23	try {	3,349✔
24	return OID::from_string(algo_name());	6,698✔
25	} catch(Lookup_Error&) {	×
26	throw Lookup_Error(fmt("Public key algorithm {} has no defined OIDs", algo_name()));	×
27	}	×
28	}
29
30	Signature_Format Asymmetric_Key::_default_x509_signature_format() const {	16,530✔
31	if(_signature_element_size()) {	16,530✔
32	return Signature_Format::DerSequence;
33	} else {
34	return Signature_Format::Standard;	13,412✔
35	}
36	}
37
38	std::string create_hex_fingerprint(const uint8_t bits[], size_t bits_len, std::string_view hash_name) {	37,166✔
39	auto hash_fn = HashFunction::create_or_throw(hash_name);	37,166✔
40	const std::string hex_hash = hex_encode(hash_fn->process(bits, bits_len));	74,332✔
41
42	std::string fprint;	37,166✔
43
44	for(size_t i = 0; i != hex_hash.size(); i += 2) {	1,003,686✔
45	if(i != 0) {	966,520✔
46	fprint.push_back(':');	929,354✔
47	}
48
49	fprint.push_back(hex_hash[i]);	966,520✔
50	fprint.push_back(hex_hash[i + 1]);	966,520✔
51	}
52
53	return fprint;	37,166✔
54	}	74,332✔
55
56	std::vector<uint8_t> Public_Key::subject_public_key() const {	2,284✔
57	std::vector<uint8_t> output;	2,284✔
58
59	DER_Encoder(output)	2,284✔
60	.start_sequence()	2,284✔
61	.encode(algorithm_identifier())	4,568✔
62	.encode(public_key_bits(), ASN1_Type::BitString)	4,568✔
63	.end_cons();	2,284✔
64
65	return output;	2,284✔
66	}	×
67
68	secure_vector<uint8_t> Private_Key::private_key_info() const {	1,623✔
69	const size_t PKCS8_VERSION = 0;	1,623✔
70
71	return DER_Encoder()	1,623✔
72	.start_sequence()	1,623✔
73	.encode(PKCS8_VERSION)	1,623✔
74	.encode(pkcs8_algorithm_identifier())	3,246✔
75	.encode(private_key_bits(), ASN1_Type::OctetString)	3,246✔
76	.end_cons()	1,623✔
77	.get_contents();	3,246✔
78	}
79
80	secure_vector<uint8_t> Private_Key::raw_private_key_bits() const {	1✔
81	throw Not_Implemented(algo_name() + " does not implement raw_private_key_bits");	3✔
82	}
83
84	/*
85	* Hash of the X.509 subjectPublicKey encoding
86	*/
87	std::string Public_Key::fingerprint_public(std::string_view hash_algo) const {	18✔
88	return create_hex_fingerprint(subject_public_key(), hash_algo);	36✔
89	}
90
91	/*
92	* Hash of the PKCS #8 encoding for this key object
93	*/
94	std::string Private_Key::fingerprint_private(std::string_view hash_algo) const {	16✔
95	return create_hex_fingerprint(private_key_bits(), hash_algo);	32✔
96	}
97
98	std::unique_ptr<PK_Ops::Encryption> Public_Key::create_encryption_op(RandomNumberGenerator& /rng/,	×
99	std::string_view /params/,
100	std::string_view /provider/) const {
101	throw Lookup_Error(fmt("{} does not support encryption", algo_name()));	×
102	}
103
104	std::unique_ptr<PK_Ops::KEM_Encryption> Public_Key::create_kem_encryption_op(std::string_view /params/,	×
105	std::string_view /provider/) const {
106	throw Lookup_Error(fmt("{} does not support KEM encryption", algo_name()));	×
107	}
108
109	std::unique_ptr<PK_Ops::Verification> Public_Key::create_verification_op(std::string_view /params/,	×
110	std::string_view /provider/) const {
111	throw Lookup_Error(fmt("{} does not support verification", algo_name()));	×
112	}
113
114	std::unique_ptr<PK_Ops::Verification> Public_Key::create_x509_verification_op(const AlgorithmIdentifier& /params/,	1✔
115	std::string_view /provider/) const {
116	throw Lookup_Error(fmt("{} does not support X.509 verification", algo_name()));	1✔
117	}
118
119	std::unique_ptr<PK_Ops::Decryption> Private_Key::create_decryption_op(RandomNumberGenerator& /rng/,	×
120	std::string_view /params/,
121	std::string_view /provider/) const {
122	throw Lookup_Error(fmt("{} does not support decryption", algo_name()));	×
123	}
124
125	std::unique_ptr<PK_Ops::KEM_Decryption> Private_Key::create_kem_decryption_op(RandomNumberGenerator& /rng/,	×
126	std::string_view /params/,
127	std::string_view /provider/) const {
128	throw Lookup_Error(fmt("{} does not support KEM decryption", algo_name()));	×
129	}
130
131	std::unique_ptr<PK_Ops::Signature> Private_Key::create_signature_op(RandomNumberGenerator& /rng/,	×
132	std::string_view /params/,
133	std::string_view /provider/) const {
134	throw Lookup_Error(fmt("{} does not support signatures", algo_name()));	×
135	}
136
137	std::unique_ptr<PK_Ops::Key_Agreement> Private_Key::create_key_agreement_op(RandomNumberGenerator& /rng/,	×
138	std::string_view /params/,
139	std::string_view /provider/) const {
140	throw Lookup_Error(fmt("{} does not support key agreement", algo_name()));	×
141	}
142
143	} // namespace Botan

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