22076829412

Committed 16 Feb 2026 08:36PM UTC coverage: 90.044%. Remained the same

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Merge pull request #5303 from Rohde-Schwarz/refactor/tls12_13_extensions

Refactor: Organize TLS Extensions into TLS 1.2 and 1.3 Modules

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86.29

/src/lib/tls/tls12/msg_client_hello_12.cpp

/*
* TLS Hello Request and Client Hello Messages
* (C) 2004-2011,2015,2016 Jack Lloyd
*     2016 Matthias Gierlings
*     2017 Harry Reimann, Rohde & Schwarz Cybersecurity
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/tls_messages_12.h>

#include <botan/tls_callbacks.h>
#include <botan/tls_exceptn.h>
#include <botan/tls_extensions_12.h>
#include <botan/tls_policy.h>
#include <botan/internal/stl_util.h>
#include <botan/internal/tls_handshake_hash.h>
#include <botan/internal/tls_handshake_io.h>
#include <botan/internal/tls_messages_internal.h>

namespace Botan::TLS {

void Client_Hello_12::update_hello_cookie(const Hello_Verify_Request& hello_verify) {
   BOTAN_STATE_CHECK(m_data->legacy_version().is_datagram_protocol());

   m_data->m_hello_cookie = hello_verify.cookie();
}

bool Client_Hello_12::prefers_compressed_ec_points() const {
   if(const Supported_Point_Formats* ecc_formats = m_data->extensions().get<Supported_Point_Formats>()) {
      return ecc_formats->prefers_compressed();
   }
   return false;
}

bool Client_Hello_12::secure_renegotiation() const {
   return m_data->extensions().has<Renegotiation_Extension>();
}

std::vector<uint8_t> Client_Hello_12::renegotiation_info() const {
   if(const Renegotiation_Extension* reneg = m_data->extensions().get<Renegotiation_Extension>()) {
      return reneg->renegotiation_info();
   }
   return {};
}

bool Client_Hello_12::supports_session_ticket() const {
   return m_data->extensions().has<Session_Ticket_Extension>();
}

Session_Ticket Client_Hello_12::session_ticket() const {
   if(auto* ticket = m_data->extensions().get<Session_Ticket_Extension>()) {
      return ticket->contents();
   }
   return {};
}

std::optional<Session_Handle> Client_Hello_12::session_handle() const {
   // RFC 5077 3.4
   //    If a ticket is presented by the client, the server MUST NOT attempt
   //    to use the Session ID in the ClientHello for stateful session
   //    resumption.
   if(auto ticket = session_ticket(); !ticket.empty()) {
      return Session_Handle(ticket);
   } else if(const auto& id = session_id(); !id.empty()) {
      return Session_Handle(id);
   } else {
      return std::nullopt;
   }
}

bool Client_Hello_12::supports_extended_master_secret() const {
   return m_data->extensions().has<Extended_Master_Secret>();
}

bool Client_Hello_12::supports_cert_status_message() const {
   return m_data->extensions().has<Certificate_Status_Request>();
}

bool Client_Hello_12::supports_encrypt_then_mac() const {
   return m_data->extensions().has<Encrypt_then_MAC>();
}

void Client_Hello_12::add_tls12_supported_groups_extensions(const Policy& policy) {
   // RFC 7919 3.
   //    A client that offers a group MUST be able and willing to perform a DH
   //    key exchange using that group.
   //
   // We don't support hybrid key exchange in TLS 1.2

   std::vector<Group_Params> compatible_kex_groups;
   for(const auto& group : policy.key_exchange_groups()) {
      if(!group.is_post_quantum()) {
         compatible_kex_groups.push_back(group);
      }
   }

   auto supported_groups = std::make_unique<Supported_Groups>(std::move(compatible_kex_groups));

   if(!supported_groups->ec_groups().empty()) {
      // NOLINTNEXTLINE(*-owning-memory)
      m_data->extensions().add(new Supported_Point_Formats(policy.use_ecc_point_compression()));
   }

   m_data->extensions().add(std::move(supported_groups));
}

/*
* Create a new Client Hello message
*/
Client_Hello_12::Client_Hello_12(Handshake_IO& io,
                                 Handshake_Hash& hash,
                                 const Policy& policy,
                                 Callbacks& cb,
                                 RandomNumberGenerator& rng,
                                 const std::vector<uint8_t>& reneg_info,
                                 const Client_Hello_12::Settings& client_settings,
                                 const std::vector<std::string>& next_protocols) {
   m_data->m_legacy_version = client_settings.protocol_version();
   m_data->m_random = make_hello_random(rng, cb, policy);
   m_data->m_suites = policy.ciphersuite_list(client_settings.protocol_version());

   if(!policy.acceptable_protocol_version(m_data->legacy_version())) {
      throw Internal_Error("Offering " + m_data->legacy_version().to_string() +
                           " but our own policy does not accept it");
   }

   /*
    * Place all empty extensions in front to avoid a bug in some systems
    * which reject hellos when the last extension in the list is empty.
    */

   // NOLINTBEGIN(*-owning-memory)

   // EMS must always be used with TLS 1.2, regardless of the policy used.

   m_data->extensions().add(new Extended_Master_Secret);

   if(policy.negotiate_encrypt_then_mac()) {
      m_data->extensions().add(new Encrypt_then_MAC);
   }

   m_data->extensions().add(new Session_Ticket_Extension());

   m_data->extensions().add(new Renegotiation_Extension(reneg_info));

   m_data->extensions().add(new Supported_Versions(m_data->legacy_version(), policy));

   if(Server_Name_Indicator::hostname_acceptable_for_sni(client_settings.hostname())) {
      m_data->extensions().add(new Server_Name_Indicator(client_settings.hostname()));
   }

   if(policy.support_cert_status_message()) {
      m_data->extensions().add(new Certificate_Status_Request({}, {}));
   }

   add_tls12_supported_groups_extensions(policy);

   m_data->extensions().add(new Signature_Algorithms(policy.acceptable_signature_schemes()));
   if(auto cert_signing_prefs = policy.acceptable_certificate_signature_schemes()) {
      // RFC 8446 4.2.3
      //    TLS 1.2 implementations SHOULD also process this extension.
      //    Implementations which have the same policy in both cases MAY omit
      //    the "signature_algorithms_cert" extension.
      m_data->extensions().add(new Signature_Algorithms_Cert(std::move(cert_signing_prefs.value())));
   }

   if(reneg_info.empty() && !next_protocols.empty()) {
      m_data->extensions().add(new Application_Layer_Protocol_Notification(next_protocols));
   }

   if(m_data->legacy_version().is_datagram_protocol()) {
      m_data->extensions().add(new SRTP_Protection_Profiles(policy.srtp_profiles()));
   }

   // NOLINTEND(*-owning-memory)

   cb.tls_modify_extensions(m_data->extensions(), Connection_Side::Client, type());

   hash.update(io.send(*this));
}

/*
* Create a new Client Hello message (session resumption case)
*/
Client_Hello_12::Client_Hello_12(Handshake_IO& io,
                                 Handshake_Hash& hash,
                                 const Policy& policy,
                                 Callbacks& cb,
                                 RandomNumberGenerator& rng,
                                 const std::vector<uint8_t>& reneg_info,
                                 const Session_with_Handle& session,
                                 const std::vector<std::string>& next_protocols) {
   m_data->m_legacy_version = session.session.version();
   m_data->m_random = make_hello_random(rng, cb, policy);

   // RFC 5077 3.4
   //    When presenting a ticket, the client MAY generate and include a
   //    Session ID in the TLS ClientHello. [...] If a ticket is presented by
   //    the client, the server MUST NOT attempt to use the Session ID in the
   //    ClientHello for stateful session resumption.
   m_data->m_session_id = session.handle.id().value_or(Session_ID(make_hello_random(rng, cb, policy)));
   m_data->m_suites = policy.ciphersuite_list(m_data->legacy_version());

   if(!policy.acceptable_protocol_version(session.session.version())) {
      throw Internal_Error("Offering " + m_data->legacy_version().to_string() +
                           " but our own policy does not accept it");
   }

   if(!value_exists(m_data->ciphersuites(), session.session.ciphersuite_code())) {
      m_data->m_suites.push_back(session.session.ciphersuite_code());
   }

   /*
    * As EMS must always be used with TLS 1.2, add it even if it wasn't used
    * in the original session. If the server understands it and follows the
    * RFC it should reject our resume attempt and upgrade us to a new session
    * with the EMS protection.
    */
   // NOLINTBEGIN(*-owning-memory)
   m_data->extensions().add(new Extended_Master_Secret);

   if(session.session.supports_encrypt_then_mac()) {
      m_data->extensions().add(new Encrypt_then_MAC);
   }

   if(session.handle.is_ticket()) {
      m_data->extensions().add(new Session_Ticket_Extension(session.handle.ticket().value()));
   }

   m_data->extensions().add(new Renegotiation_Extension(reneg_info));

   const std::string hostname = session.session.server_info().hostname();

   if(Server_Name_Indicator::hostname_acceptable_for_sni(hostname)) {
      m_data->extensions().add(new Server_Name_Indicator(hostname));
   }

   if(policy.support_cert_status_message()) {
      m_data->extensions().add(new Certificate_Status_Request({}, {}));
   }

   add_tls12_supported_groups_extensions(policy);

   m_data->extensions().add(new Signature_Algorithms(policy.acceptable_signature_schemes()));
   if(auto cert_signing_prefs = policy.acceptable_certificate_signature_schemes()) {
      // RFC 8446 4.2.3
      //    TLS 1.2 implementations SHOULD also process this extension.
      //    Implementations which have the same policy in both cases MAY omit
      //    the "signature_algorithms_cert" extension.
      m_data->extensions().add(new Signature_Algorithms_Cert(std::move(cert_signing_prefs.value())));
   }

   if(reneg_info.empty() && !next_protocols.empty()) {
      m_data->extensions().add(new Application_Layer_Protocol_Notification(next_protocols));
   }
   // NOLINTEND(*-owning-memory)

   cb.tls_modify_extensions(m_data->extensions(), Connection_Side::Client, type());

   hash.update(io.send(*this));
}

Client_Hello_12::Client_Hello_12(const std::vector<uint8_t>& buf) :
      Client_Hello_12(std::make_unique<Client_Hello_Internal>(buf)) {}

Client_Hello_12::Client_Hello_12(std::unique_ptr<Client_Hello_Internal> data) : Client_Hello_12_Shim(std::move(data)) {
   const uint16_t TLS_EMPTY_RENEGOTIATION_INFO_SCSV = 0x00FF;

   if(offered_suite(static_cast<uint16_t>(TLS_EMPTY_RENEGOTIATION_INFO_SCSV))) {
      if(const Renegotiation_Extension* reneg = m_data->extensions().get<Renegotiation_Extension>()) {
         if(!reneg->renegotiation_info().empty()) {
            throw TLS_Exception(Alert::HandshakeFailure, "Client sent renegotiation SCSV and non-empty extension");
         }
      } else {
         // add fake extension
         m_data->extensions().add(new Renegotiation_Extension());  // NOLINT(*-owning-memory)
      }
   }
}

Hello_Request::Hello_Request(Handshake_IO& io) {
   io.send(*this);
}

Hello_Request::Hello_Request(const std::vector<uint8_t>& buf) {
   if(!buf.empty()) {
      throw Decoding_Error("Bad Hello_Request, has non-zero size");
   }
}

std::vector<uint8_t> Hello_Request::serialize() const {
   return std::vector<uint8_t>();
}

}  // namespace Botan::TLS

1	/*
2	* TLS Hello Request and Client Hello Messages
3	* (C) 2004-2011,2015,2016 Jack Lloyd
4	* 2016 Matthias Gierlings
5	* 2017 Harry Reimann, Rohde & Schwarz Cybersecurity
6	*
7	* Botan is released under the Simplified BSD License (see license.txt)
8	*/
9
10	#include <botan/tls_messages_12.h>
11
12	#include <botan/tls_callbacks.h>
13	#include <botan/tls_exceptn.h>
14	#include <botan/tls_extensions_12.h>
15	#include <botan/tls_policy.h>
16	#include <botan/internal/stl_util.h>
17	#include <botan/internal/tls_handshake_hash.h>
18	#include <botan/internal/tls_handshake_io.h>
19	#include <botan/internal/tls_messages_internal.h>
20
21	namespace Botan::TLS {
22
23	void Client_Hello_12::update_hello_cookie(const Hello_Verify_Request& hello_verify) {	467✔
24	BOTAN_STATE_CHECK(m_data->legacy_version().is_datagram_protocol());	467✔
25
26	m_data->m_hello_cookie = hello_verify.cookie();	467✔
27	}	467✔
28
29	bool Client_Hello_12::prefers_compressed_ec_points() const {	28✔
30	if(const Supported_Point_Formats* ecc_formats = m_data->extensions().get<Supported_Point_Formats>()) {	28✔
31	return ecc_formats->prefers_compressed();	28✔
32	}
33	return false;
34	}
35
36	bool Client_Hello_12::secure_renegotiation() const {	5,171✔
37	return m_data->extensions().has<Renegotiation_Extension>();	5,171✔
38	}
39
40	std::vector<uint8_t> Client_Hello_12::renegotiation_info() const {	4,167✔
41	if(const Renegotiation_Extension* reneg = m_data->extensions().get<Renegotiation_Extension>()) {	4,167✔
42	return reneg->renegotiation_info();	4,167✔
43	}
44	return {};	×
45	}
46
47	bool Client_Hello_12::supports_session_ticket() const {	1,196✔
48	return m_data->extensions().has<Session_Ticket_Extension>();	1,196✔
49	}
50
51	Session_Ticket Client_Hello_12::session_ticket() const {	1,909✔
52	if(auto* ticket = m_data->extensions().get<Session_Ticket_Extension>()) {	1,909✔
53	return ticket->contents();	1,780✔
54	}
55	return {};	129✔
56	}
57
58	std::optional<Session_Handle> Client_Hello_12::session_handle() const {	987✔
59	// RFC 5077 3.4
60	// If a ticket is presented by the client, the server MUST NOT attempt
61	// to use the Session ID in the ClientHello for stateful session
62	// resumption.
63	if(auto ticket = session_ticket(); !ticket.empty()) {	987✔
64	return Session_Handle(ticket);	808✔
65	} else if(const auto& id = session_id(); !id.empty()) {	785✔
66	return Session_Handle(id);	372✔
67	} else {
68	return std::nullopt;	692✔
69	}	987✔
70	}
71
72	bool Client_Hello_12::supports_extended_master_secret() const {	1,198✔
73	return m_data->extensions().has<Extended_Master_Secret>();	1,198✔
74	}
75
76	bool Client_Hello_12::supports_cert_status_message() const {	1,432✔
77	return m_data->extensions().has<Certificate_Status_Request>();	1,432✔
78	}
79
80	bool Client_Hello_12::supports_encrypt_then_mac() const {	537✔
81	return m_data->extensions().has<Encrypt_then_MAC>();	537✔
82	}
83
84	void Client_Hello_12::add_tls12_supported_groups_extensions(const Policy& policy) {	2,696✔
85	// RFC 7919 3.
86	// A client that offers a group MUST be able and willing to perform a DH
87	// key exchange using that group.
88	//
89	// We don't support hybrid key exchange in TLS 1.2
90
91	std::vector<Group_Params> compatible_kex_groups;	2,696✔
92	for(const auto& group : policy.key_exchange_groups()) {	37,319✔
93	if(!group.is_post_quantum()) {	34,623✔
94	compatible_kex_groups.push_back(group);	26,642✔
95	}
96	}	×
97
98	auto supported_groups = std::make_unique<Supported_Groups>(std::move(compatible_kex_groups));	2,696✔
99
100	if(!supported_groups->ec_groups().empty()) {	5,384✔
101	// NOLINTNEXTLINE(*-owning-memory)
102	m_data->extensions().add(new Supported_Point_Formats(policy.use_ecc_point_compression()));	2,688✔
103	}
104
105	m_data->extensions().add(std::move(supported_groups));	2,696✔
106	}	5,392✔
107
108	/*
109	* Create a new Client Hello message
110	*/
111	Client_Hello_12::Client_Hello_12(Handshake_IO& io,	2,485✔
112	Handshake_Hash& hash,
113	const Policy& policy,
114	Callbacks& cb,
115	RandomNumberGenerator& rng,
116	const std::vector<uint8_t>& reneg_info,
117	const Client_Hello_12::Settings& client_settings,
118	const std::vector<std::string>& next_protocols) {	2,485✔
119	m_data->m_legacy_version = client_settings.protocol_version();	2,485✔
120	m_data->m_random = make_hello_random(rng, cb, policy);	2,485✔
121	m_data->m_suites = policy.ciphersuite_list(client_settings.protocol_version());	2,485✔
122
123	if(!policy.acceptable_protocol_version(m_data->legacy_version())) {	2,485✔
124	throw Internal_Error("Offering " + m_data->legacy_version().to_string() +	×
125	" but our own policy does not accept it");	×
126	}
127
128	/*
129	* Place all empty extensions in front to avoid a bug in some systems
130	* which reject hellos when the last extension in the list is empty.
131	*/
132
133	// NOLINTBEGIN(*-owning-memory)
134
135	// EMS must always be used with TLS 1.2, regardless of the policy used.
136
137	m_data->extensions().add(new Extended_Master_Secret);	2,485✔
138
139	if(policy.negotiate_encrypt_then_mac()) {	2,485✔
140	m_data->extensions().add(new Encrypt_then_MAC);	2,472✔
141	}
142
143	m_data->extensions().add(new Session_Ticket_Extension());	2,485✔
144
145	m_data->extensions().add(new Renegotiation_Extension(reneg_info));	2,485✔
146
147	m_data->extensions().add(new Supported_Versions(m_data->legacy_version(), policy));	2,485✔
148
149	if(Server_Name_Indicator::hostname_acceptable_for_sni(client_settings.hostname())) {	2,485✔
150	m_data->extensions().add(new Server_Name_Indicator(client_settings.hostname()));	2,462✔
151	}
152
153	if(policy.support_cert_status_message()) {	2,485✔
154	m_data->extensions().add(new Certificate_Status_Request({}, {}));	4,332✔
155	}
156
157	add_tls12_supported_groups_extensions(policy);	2,485✔
158
159	m_data->extensions().add(new Signature_Algorithms(policy.acceptable_signature_schemes()));	2,485✔
160	if(auto cert_signing_prefs = policy.acceptable_certificate_signature_schemes()) {	2,485✔
161	// RFC 8446 4.2.3
162	// TLS 1.2 implementations SHOULD also process this extension.
163	// Implementations which have the same policy in both cases MAY omit
164	// the "signature_algorithms_cert" extension.
165	m_data->extensions().add(new Signature_Algorithms_Cert(std::move(cert_signing_prefs.value())));	×
166	}	×
167
168	if(reneg_info.empty() && !next_protocols.empty()) {	2,485✔
169	m_data->extensions().add(new Application_Layer_Protocol_Notification(next_protocols));	126✔
170	}
171
172	if(m_data->legacy_version().is_datagram_protocol()) {	2,485✔
173	m_data->extensions().add(new SRTP_Protection_Profiles(policy.srtp_profiles()));	1,203✔
174	}
175
176	// NOLINTEND(*-owning-memory)
177
178	cb.tls_modify_extensions(m_data->extensions(), Connection_Side::Client, type());	2,485✔
179
180	hash.update(io.send(*this));	4,970✔
181	}	2,485✔
182
183	/*
184	* Create a new Client Hello message (session resumption case)
185	*/
186	Client_Hello_12::Client_Hello_12(Handshake_IO& io,	211✔
187	Handshake_Hash& hash,
188	const Policy& policy,
189	Callbacks& cb,
190	RandomNumberGenerator& rng,
191	const std::vector<uint8_t>& reneg_info,
192	const Session_with_Handle& session,
193	const std::vector<std::string>& next_protocols) {	211✔
194	m_data->m_legacy_version = session.session.version();	211✔
195	m_data->m_random = make_hello_random(rng, cb, policy);	211✔
196
197	// RFC 5077 3.4
198	// When presenting a ticket, the client MAY generate and include a
199	// Session ID in the TLS ClientHello. [...] If a ticket is presented by
200	// the client, the server MUST NOT attempt to use the Session ID in the
201	// ClientHello for stateful session resumption.
202	m_data->m_session_id = session.handle.id().value_or(Session_ID(make_hello_random(rng, cb, policy)));	453✔
203	m_data->m_suites = policy.ciphersuite_list(m_data->legacy_version());	211✔
204
205	if(!policy.acceptable_protocol_version(session.session.version())) {	211✔
206	throw Internal_Error("Offering " + m_data->legacy_version().to_string() +	×
207	" but our own policy does not accept it");	×
208	}
209
210	if(!value_exists(m_data->ciphersuites(), session.session.ciphersuite_code())) {	422✔
211	m_data->m_suites.push_back(session.session.ciphersuite_code());	4✔
212	}
213
214	/*
215	* As EMS must always be used with TLS 1.2, add it even if it wasn't used
216	* in the original session. If the server understands it and follows the
217	* RFC it should reject our resume attempt and upgrade us to a new session
218	* with the EMS protection.
219	*/
220	// NOLINTBEGIN(*-owning-memory)
221	m_data->extensions().add(new Extended_Master_Secret);	211✔
222
223	if(session.session.supports_encrypt_then_mac()) {	211✔
224	m_data->extensions().add(new Encrypt_then_MAC);	1✔
225	}
226
227	if(session.handle.is_ticket()) {	211✔
228	m_data->extensions().add(new Session_Ticket_Extension(session.handle.ticket().value()));	360✔
229	}
230
231	m_data->extensions().add(new Renegotiation_Extension(reneg_info));	211✔
232
233	const std::string hostname = session.session.server_info().hostname();	211✔
234
235	if(Server_Name_Indicator::hostname_acceptable_for_sni(hostname)) {	211✔
236	m_data->extensions().add(new Server_Name_Indicator(hostname));	211✔
237	}
238
239	if(policy.support_cert_status_message()) {	211✔
240	m_data->extensions().add(new Certificate_Status_Request({}, {}));	60✔
241	}
242
243	add_tls12_supported_groups_extensions(policy);	211✔
244
245	m_data->extensions().add(new Signature_Algorithms(policy.acceptable_signature_schemes()));	211✔
246	if(auto cert_signing_prefs = policy.acceptable_certificate_signature_schemes()) {	211✔
247	// RFC 8446 4.2.3
248	// TLS 1.2 implementations SHOULD also process this extension.
249	// Implementations which have the same policy in both cases MAY omit
250	// the "signature_algorithms_cert" extension.
251	m_data->extensions().add(new Signature_Algorithms_Cert(std::move(cert_signing_prefs.value())));	×
252	}	×
253
254	if(reneg_info.empty() && !next_protocols.empty()) {	211✔
255	m_data->extensions().add(new Application_Layer_Protocol_Notification(next_protocols));	15✔
256	}
257	// NOLINTEND(*-owning-memory)
258
259	cb.tls_modify_extensions(m_data->extensions(), Connection_Side::Client, type());	211✔
260
261	hash.update(io.send(*this));	633✔
262	}	211✔
263
264	Client_Hello_12::Client_Hello_12(const std::vector<uint8_t>& buf) :	2,897✔
265	Client_Hello_12(std::make_unique<Client_Hello_Internal>(buf)) {}	2,897✔
266
267	Client_Hello_12::Client_Hello_12(std::unique_ptr<Client_Hello_Internal> data) : Client_Hello_12_Shim(std::move(data)) {	1,884✔
268	const uint16_t TLS_EMPTY_RENEGOTIATION_INFO_SCSV = 0x00FF;	1,884✔
269
270	if(offered_suite(static_cast<uint16_t>(TLS_EMPTY_RENEGOTIATION_INFO_SCSV))) {	1,884✔
271	if(const Renegotiation_Extension* reneg = m_data->extensions().get<Renegotiation_Extension>()) {	6✔
272	if(!reneg->renegotiation_info().empty()) {	×
273	throw TLS_Exception(Alert::HandshakeFailure, "Client sent renegotiation SCSV and non-empty extension");	×
274	}
275	} else {
276	// add fake extension
277	m_data->extensions().add(new Renegotiation_Extension()); // NOLINT(*-owning-memory)	6✔
278	}
279	}
280	}	1,884✔
281
282	Hello_Request::Hello_Request(Handshake_IO& io) {	×
283	io.send(*this);	×
284	}	×
285
286	Hello_Request::Hello_Request(const std::vector<uint8_t>& buf) {	42✔
287	if(!buf.empty()) {	42✔
288	throw Decoding_Error("Bad Hello_Request, has non-zero size");	2✔
289	}
290	}	40✔
291
292	std::vector<uint8_t> Hello_Request::serialize() const {	×
293	return std::vector<uint8_t>();	×
294	}
295
296	} // namespace Botan::TLS

randombit / botan / 22076829412

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