5230455705

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

Build # 5230455705

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github

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randombit

Commit Message

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

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95.89

/src/lib/tls/msg_cert_req.cpp

/*
* Certificate Request Message
* (C) 2004-2006,2012 Jack Lloyd
*     2021 Elektrobit Automotive GmbH
*     2022 René Meusel, Hannes Rantzsch - neXenio GmbH
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/tls_messages.h>

#include <botan/ber_dec.h>
#include <botan/der_enc.h>
#include <botan/tls_extensions.h>
#include <botan/internal/tls_handshake_hash.h>
#include <botan/internal/tls_handshake_io.h>
#include <botan/internal/tls_reader.h>

namespace Botan::TLS {

Handshake_Type Certificate_Request_12::type() const {
   return Handshake_Type::CertificateRequest;
}

namespace {

std::string cert_type_code_to_name(uint8_t code) {
   switch(code) {
      case 1:
         return "RSA";
      case 64:
         return "ECDSA";
      default:
         return "";  // DH or something else
   }
}

uint8_t cert_type_name_to_code(std::string_view name) {
   if(name == "RSA") {
      return 1;
   }
   if(name == "ECDSA") {
      return 64;
   }

   throw Invalid_Argument(fmt("Unknown/unhandled TLS cert type {}", name));
}

}  // namespace

/**
* Create a new Certificate Request message
*/
Certificate_Request_12::Certificate_Request_12(Handshake_IO& io,
                                               Handshake_Hash& hash,
                                               const Policy& policy,
                                               const std::vector<X509_DN>& ca_certs) :
      m_names(ca_certs), m_cert_key_types({"RSA", "ECDSA"}) {
   m_schemes = policy.acceptable_signature_schemes();
   hash.update(io.send(*this));
}

/**
* Deserialize a Certificate Request message
*/
Certificate_Request_12::Certificate_Request_12(const std::vector<uint8_t>& buf) {
   if(buf.size() < 4) {
      throw Decoding_Error("Certificate_Req: Bad certificate request");
   }

   TLS_Data_Reader reader("CertificateRequest", buf);

   const auto cert_type_codes = reader.get_range_vector<uint8_t>(1, 1, 255);

   for(const auto cert_type_code : cert_type_codes) {
      const std::string cert_type_name = cert_type_code_to_name(cert_type_code);

      if(cert_type_name.empty()) {  // something we don't know
         continue;
      }

      m_cert_key_types.emplace_back(cert_type_name);
   }

   const std::vector<uint8_t> algs = reader.get_range_vector<uint8_t>(2, 2, 65534);

   if(algs.size() % 2 != 0) {
      throw Decoding_Error("Bad length for signature IDs in certificate request");
   }

   for(size_t i = 0; i != algs.size(); i += 2) {
      m_schemes.emplace_back(make_uint16(algs[i], algs[i + 1]));
   }

   const uint16_t purported_size = reader.get_uint16_t();

   if(reader.remaining_bytes() != purported_size) {
      throw Decoding_Error("Inconsistent length in certificate request");
   }

   while(reader.has_remaining()) {
      std::vector<uint8_t> name_bits = reader.get_range_vector<uint8_t>(2, 0, 65535);

      BER_Decoder decoder(name_bits.data(), name_bits.size());
      X509_DN name;
      decoder.decode(name);
      m_names.emplace_back(name);
   }
}

const std::vector<std::string>& Certificate_Request_12::acceptable_cert_types() const {
   return m_cert_key_types;
}

const std::vector<X509_DN>& Certificate_Request_12::acceptable_CAs() const {
   return m_names;
}

const std::vector<Signature_Scheme>& Certificate_Request_12::signature_schemes() const {
   return m_schemes;
}

/**
* Serialize a Certificate Request message
*/
std::vector<uint8_t> Certificate_Request_12::serialize() const {
   std::vector<uint8_t> buf;

   std::vector<uint8_t> cert_types;

   cert_types.reserve(m_cert_key_types.size());
   for(const auto& cert_key_type : m_cert_key_types) {
      cert_types.push_back(cert_type_name_to_code(cert_key_type));
   }

   append_tls_length_value(buf, cert_types, 1);

   if(!m_schemes.empty()) {
      buf += Signature_Algorithms(m_schemes).serialize(Connection_Side::Server);
   }

   std::vector<uint8_t> encoded_names;

   for(const auto& name : m_names) {
      DER_Encoder encoder;
      encoder.encode(name);

      append_tls_length_value(encoded_names, encoder.get_contents(), 2);
   }

   append_tls_length_value(buf, encoded_names, 2);

   return buf;
}
}  // namespace Botan::TLS

1	/*
2	* Certificate Request Message
3	* (C) 2004-2006,2012 Jack Lloyd
4	* 2021 Elektrobit Automotive GmbH
5	* 2022 René Meusel, Hannes Rantzsch - neXenio GmbH
6	*
7	* Botan is released under the Simplified BSD License (see license.txt)
8	*/
9
10	#include <botan/tls_messages.h>
11
12	#include <botan/ber_dec.h>
13	#include <botan/der_enc.h>
14	#include <botan/tls_extensions.h>
15	#include <botan/internal/tls_handshake_hash.h>
16	#include <botan/internal/tls_handshake_io.h>
17	#include <botan/internal/tls_reader.h>
18
19	namespace Botan::TLS {
20
21	Handshake_Type Certificate_Request_12::type() const {	621✔
22	return Handshake_Type::CertificateRequest;	621✔
23	}
24
25	namespace {
26
27	std::string cert_type_code_to_name(uint8_t code) {	363✔
28	switch(code) {	363✔
29	case 1:	181✔
30	return "RSA";	181✔
31	case 64:	181✔
32	return "ECDSA";	181✔
33	default:	1✔
34	return ""; // DH or something else	1✔
35	}
36	}
37
38	uint8_t cert_type_name_to_code(std::string_view name) {	472✔
39	if(name == "RSA") {	472✔
40	return 1;	236✔
41	}
42	if(name == "ECDSA") {	236✔
43	return 64;	236✔
44	}
45
46	throw Invalid_Argument(fmt("Unknown/unhandled TLS cert type {}", name));	×
47	}
48
49	} // namespace
50
51	/**
52	* Create a new Certificate Request message
53	*/
54	Certificate_Request_12::Certificate_Request_12(Handshake_IO& io,	236✔
55	Handshake_Hash& hash,
56	const Policy& policy,
57	const std::vector<X509_DN>& ca_certs) :	236✔
58	m_names(ca_certs), m_cert_key_types({"RSA", "ECDSA"}) {	944✔
59	m_schemes = policy.acceptable_signature_schemes();	236✔
60	hash.update(io.send(*this));	472✔
61	}	236✔
62
63	/**
64	* Deserialize a Certificate Request message
65	*/
66	Certificate_Request_12::Certificate_Request_12(const std::vector<uint8_t>& buf) {	181✔
67	if(buf.size() < 4) {	181✔
68	throw Decoding_Error("Certificate_Req: Bad certificate request");	×
69	}
70
71	TLS_Data_Reader reader("CertificateRequest", buf);	181✔
72
73	const auto cert_type_codes = reader.get_range_vector<uint8_t>(1, 1, 255);	181✔
74
75	for(const auto cert_type_code : cert_type_codes) {	544✔
76	const std::string cert_type_name = cert_type_code_to_name(cert_type_code);	363✔
77
78	if(cert_type_name.empty()) { // something we don't know	363✔
79	continue;	1✔
80	}
81
82	m_cert_key_types.emplace_back(cert_type_name);	362✔
83	}	363✔
84
85	const std::vector<uint8_t> algs = reader.get_range_vector<uint8_t>(2, 2, 65534);	181✔
86
87	if(algs.size() % 2 != 0) {	179✔
88	throw Decoding_Error("Bad length for signature IDs in certificate request");	×
89	}
90
91	for(size_t i = 0; i != algs.size(); i += 2) {	1,494✔
92	m_schemes.emplace_back(make_uint16(algs[i], algs[i + 1]));	1,317✔
93	}
94
95	const uint16_t purported_size = reader.get_uint16_t();	179✔
96
97	if(reader.remaining_bytes() != purported_size) {	179✔
98	throw Decoding_Error("Inconsistent length in certificate request");	2✔
99	}
100
101	while(reader.has_remaining()) {	345✔
102	std::vector<uint8_t> name_bits = reader.get_range_vector<uint8_t>(2, 0, 65535);	168✔
103
104	BER_Decoder decoder(name_bits.data(), name_bits.size());	168✔
105	X509_DN name;	168✔
106	decoder.decode(name);	168✔
107	m_names.emplace_back(name);	168✔
108	}	336✔
109	}	366✔
110
111	const std::vector<std::string>& Certificate_Request_12::acceptable_cert_types() const {	177✔
112	return m_cert_key_types;	177✔
113	}
114
115	const std::vector<X509_DN>& Certificate_Request_12::acceptable_CAs() const {	177✔
116	return m_names;	177✔
117	}
118
119	const std::vector<Signature_Scheme>& Certificate_Request_12::signature_schemes() const {	206✔
120	return m_schemes;	206✔
121	}
122
123	/**
124	* Serialize a Certificate Request message
125	*/
126	std::vector<uint8_t> Certificate_Request_12::serialize() const {	236✔
127	std::vector<uint8_t> buf;	236✔
128
129	std::vector<uint8_t> cert_types;	236✔
130
131	cert_types.reserve(m_cert_key_types.size());	236✔
132	for(const auto& cert_key_type : m_cert_key_types) {	708✔
133	cert_types.push_back(cert_type_name_to_code(cert_key_type));	472✔
134	}
135
136	append_tls_length_value(buf, cert_types, 1);	236✔
137
138	if(!m_schemes.empty()) {	236✔
139	buf += Signature_Algorithms(m_schemes).serialize(Connection_Side::Server);	472✔
140	}
141
142	std::vector<uint8_t> encoded_names;	236✔
143
144	for(const auto& name : m_names) {	398✔
145	DER_Encoder encoder;	162✔
146	encoder.encode(name);	162✔
147
148	append_tls_length_value(encoded_names, encoder.get_contents(), 2);	324✔
149	}	162✔
150
151	append_tls_length_value(buf, encoded_names, 2);	236✔
152
153	return buf;	236✔
154	}	472✔
155	} // namespace Botan::TLS

randombit / botan / 5230455705

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