mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 08:48:11 +00:00
fea5aeda0b
With this change the certificate chain sent by the server will actually be verified, instead of just checking the names of the certificates. To determine if a certificate is signed by a root certificate, the list of root certificates is now a HashMap mapping from the unique identifier string to the certificate. This allows us to take the issuer of a certificate and easily check if it is a root certificate. If a certificate is not signed by a root certificate, we will check that it is signed by the next certificate in the chain. This also removes the ad-hoc checking of certificate validity from multiple places, and moves all checking to the verify_chain.
504 lines
26 KiB
C++
504 lines
26 KiB
C++
/*
|
|
* Copyright (c) 2020, Ali Mohammad Pur <mpfard@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include "Certificate.h"
|
|
#include <AK/Debug.h>
|
|
#include <LibCrypto/ASN1/ASN1.h>
|
|
#include <LibCrypto/ASN1/DER.h>
|
|
#include <LibCrypto/ASN1/PEM.h>
|
|
|
|
namespace TLS {
|
|
|
|
constexpr static Array<int, 4>
|
|
common_name_oid { 2, 5, 4, 3 },
|
|
country_name_oid { 2, 5, 4, 6 },
|
|
locality_name_oid { 2, 5, 4, 7 },
|
|
organization_name_oid { 2, 5, 4, 10 },
|
|
organizational_unit_name_oid { 2, 5, 4, 11 };
|
|
|
|
constexpr static Array<int, 7>
|
|
rsa_encryption_oid { 1, 2, 840, 113549, 1, 1, 1 },
|
|
rsa_md5_encryption_oid { 1, 2, 840, 113549, 1, 1, 4 },
|
|
rsa_sha1_encryption_oid { 1, 2, 840, 113549, 1, 1, 5 },
|
|
rsa_sha256_encryption_oid { 1, 2, 840, 113549, 1, 1, 11 },
|
|
rsa_sha384_encryption_oid { 1, 2, 840, 113549, 1, 1, 12 },
|
|
rsa_sha512_encryption_oid { 1, 2, 840, 113549, 1, 1, 13 };
|
|
|
|
constexpr static Array<int, 4>
|
|
subject_alternative_name_oid { 2, 5, 29, 17 };
|
|
|
|
Optional<Certificate> Certificate::parse_asn1(ReadonlyBytes buffer, bool)
|
|
{
|
|
#define ENTER_SCOPE_WITHOUT_TYPECHECK(scope) \
|
|
do { \
|
|
if (auto result = decoder.enter(); result.has_value()) { \
|
|
dbgln_if(TLS_DEBUG, "Failed to enter object (" scope "): {}", result.value()); \
|
|
return {}; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define ENTER_SCOPE_OR_FAIL(kind_name, scope) \
|
|
do { \
|
|
if (auto tag = decoder.peek(); tag.is_error() || tag.value().kind != Crypto::ASN1::Kind::kind_name) { \
|
|
if constexpr (TLS_DEBUG) { \
|
|
if (tag.is_error()) \
|
|
dbgln(scope " data was invalid: {}", tag.error()); \
|
|
else \
|
|
dbgln(scope " data was not of kind " #kind_name); \
|
|
} \
|
|
return {}; \
|
|
} \
|
|
ENTER_SCOPE_WITHOUT_TYPECHECK(scope); \
|
|
} while (0)
|
|
|
|
#define EXIT_SCOPE(scope) \
|
|
do { \
|
|
if (auto error = decoder.leave(); error.has_value()) { \
|
|
dbgln_if(TLS_DEBUG, "Error while exiting scope " scope ": {}", error.value()); \
|
|
return {}; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define ENSURE_OBJECT_KIND(_kind_name, scope) \
|
|
do { \
|
|
if (auto tag = decoder.peek(); tag.is_error() || tag.value().kind != Crypto::ASN1::Kind::_kind_name) { \
|
|
if constexpr (TLS_DEBUG) { \
|
|
if (tag.is_error()) \
|
|
dbgln(scope " data was invalid: {}", tag.error()); \
|
|
else \
|
|
dbgln(scope " data was not of kind " #_kind_name ", it was {}", Crypto::ASN1::kind_name(tag.value().kind)); \
|
|
} \
|
|
return {}; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define READ_OBJECT_OR_FAIL(kind_name, type_name, value_name, scope) \
|
|
auto value_name##_result = decoder.read<type_name>(Crypto::ASN1::Class::Universal, Crypto::ASN1::Kind::kind_name); \
|
|
if (value_name##_result.is_error()) { \
|
|
dbgln_if(TLS_DEBUG, scope " read of kind " #kind_name " failed: {}", value_name##_result.error()); \
|
|
return {}; \
|
|
} \
|
|
auto value_name = value_name##_result.release_value();
|
|
|
|
#define DROP_OBJECT_OR_FAIL(scope) \
|
|
do { \
|
|
if (auto error = decoder.drop(); error.has_value()) { \
|
|
dbgln_if(TLS_DEBUG, scope " read failed: {}", error.value()); \
|
|
} \
|
|
} while (0)
|
|
|
|
Certificate certificate;
|
|
auto copy_buffer_result = ByteBuffer::copy(buffer.data(), buffer.size());
|
|
if (copy_buffer_result.is_error())
|
|
return {};
|
|
certificate.original_asn1 = copy_buffer_result.release_value();
|
|
|
|
Crypto::ASN1::Decoder decoder { buffer };
|
|
// Certificate ::= Sequence {
|
|
// certificate TBSCertificate,
|
|
// signature_algorithm AlgorithmIdentifier,
|
|
// signature_value BitString
|
|
// }
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate");
|
|
|
|
// TBSCertificate ::= Sequence {
|
|
// version (0) EXPLICIT Version DEFAULT v1,
|
|
// serial_number CertificateSerialNumber,
|
|
// signature AlgorithmIdentifier,
|
|
// issuer Name,
|
|
// validity Validity,
|
|
// subject Name,
|
|
// subject_public_key_info SubjectPublicKeyInfo,
|
|
// issuer_unique_id (1) IMPLICIT UniqueIdentifier OPTIONAL (if present, version > v1),
|
|
// subject_unique_id (2) IMPLICIT UniqueIdentifier OPTIONAL (if present, version > v1),
|
|
// extensions (3) EXPLICIT Extensions OPTIONAL (if present, version > v2)
|
|
// }
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate::TBSCertificate");
|
|
|
|
// version
|
|
{
|
|
// Version :: Integer { v1(0), v2(1), v3(2) } (Optional)
|
|
if (auto tag = decoder.peek(); !tag.is_error() && tag.value().type == Crypto::ASN1::Type::Constructed) {
|
|
ENTER_SCOPE_WITHOUT_TYPECHECK("Certificate::version");
|
|
READ_OBJECT_OR_FAIL(Integer, Crypto::UnsignedBigInteger, value, "Certificate::version");
|
|
if (!(value < 3)) {
|
|
dbgln_if(TLS_DEBUG, "Certificate::version Invalid value for version: {}", value.to_base(10));
|
|
return {};
|
|
}
|
|
certificate.version = value.words()[0];
|
|
EXIT_SCOPE("Certificate::version");
|
|
} else {
|
|
certificate.version = 0;
|
|
}
|
|
}
|
|
|
|
// serial_number
|
|
{
|
|
// CertificateSerialNumber :: Integer
|
|
READ_OBJECT_OR_FAIL(Integer, Crypto::UnsignedBigInteger, value, "Certificate::serial_number");
|
|
certificate.serial_number = move(value);
|
|
}
|
|
|
|
auto parse_algorithm_identifier = [&](CertificateKeyAlgorithm& field) -> Optional<bool> {
|
|
// AlgorithmIdentifier ::= Sequence {
|
|
// algorithm ObjectIdentifier,
|
|
// parameters ANY OPTIONAL
|
|
// }
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "AlgorithmIdentifier");
|
|
READ_OBJECT_OR_FAIL(ObjectIdentifier, Vector<int>, identifier, "AlgorithmIdentifier::algorithm");
|
|
if (identifier == rsa_encryption_oid)
|
|
field = CertificateKeyAlgorithm ::RSA_RSA;
|
|
else if (identifier == rsa_md5_encryption_oid)
|
|
field = CertificateKeyAlgorithm ::RSA_MD5;
|
|
else if (identifier == rsa_sha1_encryption_oid)
|
|
field = CertificateKeyAlgorithm ::RSA_SHA1;
|
|
else if (identifier == rsa_sha256_encryption_oid)
|
|
field = CertificateKeyAlgorithm ::RSA_SHA256;
|
|
else if (identifier == rsa_sha384_encryption_oid)
|
|
field = CertificateKeyAlgorithm ::RSA_SHA384;
|
|
else if (identifier == rsa_sha512_encryption_oid)
|
|
field = CertificateKeyAlgorithm ::RSA_SHA512;
|
|
else
|
|
return {};
|
|
|
|
EXIT_SCOPE("AlgorithmIdentifier");
|
|
return true;
|
|
};
|
|
|
|
// signature
|
|
{
|
|
if (!parse_algorithm_identifier(certificate.algorithm).has_value())
|
|
return {};
|
|
}
|
|
|
|
auto parse_name = [&](auto& name_struct) -> Optional<bool> {
|
|
// Name ::= Choice {
|
|
// rdn_sequence RDNSequence
|
|
// } // NOTE: since this is the only alternative, there's no index
|
|
// RDNSequence ::= Sequence OF RelativeDistinguishedName
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate::TBSCertificate::issuer/subject");
|
|
|
|
// RelativeDistinguishedName ::= Set OF AttributeTypeAndValue
|
|
// AttributeTypeAndValue ::= Sequence {
|
|
// type AttributeType,
|
|
// value AttributeValue
|
|
// }
|
|
// AttributeType ::= ObjectIdentifier
|
|
// AttributeValue ::= Any
|
|
while (!decoder.eof()) {
|
|
// Parse only the the required fields, and ignore the rest.
|
|
ENTER_SCOPE_OR_FAIL(Set, "Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName");
|
|
while (!decoder.eof()) {
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue");
|
|
ENSURE_OBJECT_KIND(ObjectIdentifier, "Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue::type");
|
|
|
|
if (auto type_identifier_or_error = decoder.read<Vector<int>>(); !type_identifier_or_error.is_error()) {
|
|
// Figure out what type of identifier this is
|
|
auto& identifier = type_identifier_or_error.value();
|
|
if (identifier == common_name_oid) {
|
|
READ_OBJECT_OR_FAIL(PrintableString, StringView, name,
|
|
"Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue::Value");
|
|
name_struct.subject = name;
|
|
} else if (identifier == country_name_oid) {
|
|
READ_OBJECT_OR_FAIL(PrintableString, StringView, name,
|
|
"Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue::Value");
|
|
name_struct.country = name;
|
|
} else if (identifier == locality_name_oid) {
|
|
READ_OBJECT_OR_FAIL(PrintableString, StringView, name,
|
|
"Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue::Value");
|
|
name_struct.location = name;
|
|
} else if (identifier == organization_name_oid) {
|
|
READ_OBJECT_OR_FAIL(PrintableString, StringView, name,
|
|
"Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue::Value");
|
|
name_struct.entity = name;
|
|
} else if (identifier == organizational_unit_name_oid) {
|
|
READ_OBJECT_OR_FAIL(PrintableString, StringView, name,
|
|
"Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue::Value");
|
|
name_struct.unit = name;
|
|
}
|
|
} else {
|
|
dbgln_if(TLS_DEBUG, "Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue::type data was invalid: {}", type_identifier_or_error.error());
|
|
return {};
|
|
}
|
|
|
|
EXIT_SCOPE("Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName::$::AttributeTypeAndValue");
|
|
}
|
|
EXIT_SCOPE("Certificate::TBSCertificate::issuer/subject::$::RelativeDistinguishedName");
|
|
}
|
|
|
|
EXIT_SCOPE("Certificate::TBSCertificate::issuer/subject");
|
|
return true;
|
|
};
|
|
|
|
// issuer
|
|
{
|
|
if (!parse_name(certificate.issuer).has_value())
|
|
return {};
|
|
}
|
|
|
|
// validity
|
|
{
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate::TBSCertificate::Validity");
|
|
|
|
auto parse_time = [&](Core::DateTime& datetime) -> Optional<bool> {
|
|
// Time ::= Choice {
|
|
// utc_time UTCTime,
|
|
// general_time GeneralizedTime
|
|
// }
|
|
auto tag = decoder.peek();
|
|
if (tag.is_error()) {
|
|
dbgln_if(1, "Certificate::TBSCertificate::Validity::$::Time failed to read tag: {}", tag.error());
|
|
return {};
|
|
};
|
|
|
|
if (tag.value().kind == Crypto::ASN1::Kind::UTCTime) {
|
|
READ_OBJECT_OR_FAIL(UTCTime, StringView, time, "Certificate::TBSCertificate::Validity::$");
|
|
auto result = Crypto::ASN1::parse_utc_time(time);
|
|
if (!result.has_value()) {
|
|
dbgln_if(1, "Certificate::TBSCertificate::Validity::$::Time Invalid UTC Time: {}", time);
|
|
return {};
|
|
}
|
|
datetime = result.release_value();
|
|
return true;
|
|
}
|
|
|
|
if (tag.value().kind == Crypto::ASN1::Kind::GeneralizedTime) {
|
|
READ_OBJECT_OR_FAIL(UTCTime, StringView, time, "Certificate::TBSCertificate::Validity::$");
|
|
auto result = Crypto::ASN1::parse_generalized_time(time);
|
|
if (!result.has_value()) {
|
|
dbgln_if(1, "Certificate::TBSCertificate::Validity::$::Time Invalid Generalized Time: {}", time);
|
|
return {};
|
|
}
|
|
datetime = result.release_value();
|
|
return true;
|
|
}
|
|
|
|
dbgln_if(1, "Unrecognised Time format {}", Crypto::ASN1::kind_name(tag.value().kind));
|
|
return {};
|
|
};
|
|
|
|
if (!parse_time(certificate.not_before).has_value())
|
|
return {};
|
|
|
|
if (!parse_time(certificate.not_after).has_value())
|
|
return {};
|
|
|
|
EXIT_SCOPE("Certificate::TBSCertificate::Validity");
|
|
}
|
|
|
|
// subject
|
|
{
|
|
if (!parse_name(certificate.subject).has_value())
|
|
return {};
|
|
}
|
|
|
|
// subject_public_key_info
|
|
{
|
|
// SubjectPublicKeyInfo ::= Sequence {
|
|
// algorithm AlgorithmIdentifier,
|
|
// subject_public_key BitString
|
|
// }
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate::TBSCertificate::subject_public_key_info");
|
|
|
|
if (!parse_algorithm_identifier(certificate.key_algorithm).has_value())
|
|
return {};
|
|
|
|
READ_OBJECT_OR_FAIL(BitString, const BitmapView, value, "Certificate::TBSCertificate::subject_public_key_info::subject_public_key_info");
|
|
// Note: Once we support other kinds of keys, make sure to check the kind here!
|
|
auto key = Crypto::PK::RSA::parse_rsa_key({ value.data(), value.size_in_bytes() });
|
|
if (!key.public_key.length()) {
|
|
dbgln_if(TLS_DEBUG, "Certificate::TBSCertificate::subject_public_key_info::subject_public_key_info: Invalid key");
|
|
return {};
|
|
}
|
|
certificate.public_key = move(key.public_key);
|
|
EXIT_SCOPE("Certificate::TBSCertificate::subject_public_key_info");
|
|
}
|
|
|
|
auto parse_unique_identifier = [&]() -> Optional<bool> {
|
|
if (certificate.version == 0)
|
|
return true;
|
|
|
|
auto tag = decoder.peek();
|
|
if (tag.is_error()) {
|
|
dbgln_if(TLS_DEBUG, "Certificate::TBSCertificate::*::UniqueIdentifier could not read tag: {}", tag.error());
|
|
return {};
|
|
}
|
|
|
|
// The spec says to just ignore these.
|
|
if (static_cast<u8>(tag.value().kind) == 1 || static_cast<u8>(tag.value().kind) == 2)
|
|
DROP_OBJECT_OR_FAIL("UniqueIdentifier");
|
|
|
|
return true;
|
|
};
|
|
|
|
// issuer_unique_identifier
|
|
{
|
|
if (!parse_unique_identifier().has_value())
|
|
return {};
|
|
}
|
|
|
|
// subject_unique_identifier
|
|
{
|
|
if (!parse_unique_identifier().has_value())
|
|
return {};
|
|
}
|
|
|
|
// extensions
|
|
{
|
|
if (certificate.version == 2) {
|
|
auto tag = decoder.peek();
|
|
if (tag.is_error()) {
|
|
dbgln_if(TLS_DEBUG, "Certificate::TBSCertificate::*::UniqueIdentifier could not read tag: {}", tag.error());
|
|
return {};
|
|
}
|
|
if (static_cast<u8>(tag.value().kind) == 3) {
|
|
// Extensions ::= Sequence OF Extension
|
|
// Extension ::= Sequence {
|
|
// extension_id ObjectIdentifier,
|
|
// critical Boolean DEFAULT false,
|
|
// extension_value OctetString (DER-encoded)
|
|
// }
|
|
ENTER_SCOPE_WITHOUT_TYPECHECK("Certificate::TBSCertificate::Extensions(IMPLICIT)");
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate::TBSCertificate::Extensions");
|
|
|
|
while (!decoder.eof()) {
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate::TBSCertificate::Extensions::$::Extension");
|
|
READ_OBJECT_OR_FAIL(ObjectIdentifier, Vector<int>, extension_id, "Certificate::TBSCertificate::Extensions::$::Extension::extension_id");
|
|
bool is_critical = false;
|
|
if (auto tag = decoder.peek(); !tag.is_error() && tag.value().kind == Crypto::ASN1::Kind::Boolean) {
|
|
// Read the 'critical' property
|
|
READ_OBJECT_OR_FAIL(Boolean, bool, critical, "Certificate::TBSCertificate::Extensions::$::Extension::critical");
|
|
is_critical = critical;
|
|
}
|
|
READ_OBJECT_OR_FAIL(OctetString, StringView, extension_value, "Certificate::TBSCertificate::Extensions::$::Extension::extension_value");
|
|
|
|
// Figure out what this extension is.
|
|
if (extension_id == subject_alternative_name_oid) {
|
|
Crypto::ASN1::Decoder decoder { extension_value.bytes() };
|
|
// SubjectAlternativeName ::= GeneralNames
|
|
// GeneralNames ::= Sequence OF GeneralName
|
|
// GeneralName ::= CHOICE {
|
|
// other_name (0) OtherName,
|
|
// rfc_822_name (1) IA5String,
|
|
// dns_name (2) IA5String,
|
|
// x400Address (3) ORAddress,
|
|
// directory_name (4) Name,
|
|
// edi_party_name (5) EDIPartyName,
|
|
// uri (6) IA5String,
|
|
// ip_address (7) OctetString,
|
|
// registered_id (8) ObjectIdentifier,
|
|
// }
|
|
ENTER_SCOPE_OR_FAIL(Sequence, "Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName");
|
|
|
|
while (!decoder.eof()) {
|
|
auto tag = decoder.peek();
|
|
if (tag.is_error()) {
|
|
dbgln_if(TLS_DEBUG, "Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$ could not read tag: {}", tag.error());
|
|
return {};
|
|
}
|
|
|
|
auto tag_value = static_cast<u8>(tag.value().kind);
|
|
switch (tag_value) {
|
|
case 0:
|
|
// OtherName
|
|
// We don't know how to use this.
|
|
DROP_OBJECT_OR_FAIL("Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::OtherName");
|
|
break;
|
|
case 1:
|
|
// RFC 822 name
|
|
// We don't know how to use this.
|
|
DROP_OBJECT_OR_FAIL("Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::RFC822Name");
|
|
break;
|
|
case 2: {
|
|
// DNS Name
|
|
READ_OBJECT_OR_FAIL(IA5String, StringView, name, "Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::Name");
|
|
certificate.SAN.append(name);
|
|
break;
|
|
}
|
|
case 3:
|
|
// x400Address
|
|
// We don't know how to use this.
|
|
DROP_OBJECT_OR_FAIL("Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::X400Address");
|
|
break;
|
|
case 4:
|
|
// Directory name
|
|
// We don't know how to use this.
|
|
DROP_OBJECT_OR_FAIL("Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::DirectoryName");
|
|
break;
|
|
case 5:
|
|
// edi party name
|
|
// We don't know how to use this.
|
|
DROP_OBJECT_OR_FAIL("Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::EDIPartyName");
|
|
break;
|
|
case 6: {
|
|
// URI
|
|
READ_OBJECT_OR_FAIL(IA5String, StringView, name, "Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::URI");
|
|
certificate.SAN.append(name);
|
|
break;
|
|
}
|
|
case 7:
|
|
// IP Address
|
|
// We can't handle these.
|
|
DROP_OBJECT_OR_FAIL("Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::IPAddress");
|
|
break;
|
|
case 8:
|
|
// Registered ID
|
|
// We can't handle these.
|
|
DROP_OBJECT_OR_FAIL("Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::RegisteredID");
|
|
break;
|
|
default:
|
|
dbgln_if(TLS_DEBUG, "Unknown tag in SAN choice {}", tag_value);
|
|
if (is_critical)
|
|
return {};
|
|
else
|
|
DROP_OBJECT_OR_FAIL("Certificate::TBSCertificate::Extensions::$::Extension::extension_value::SubjectAlternativeName::$::???");
|
|
}
|
|
}
|
|
}
|
|
|
|
EXIT_SCOPE("Certificate::TBSCertificate::Extensions::$::Extension");
|
|
}
|
|
|
|
EXIT_SCOPE("Certificate::TBSCertificate::Extensions");
|
|
EXIT_SCOPE("Certificate::TBSCertificate::Extensions(IMPLICIT)");
|
|
}
|
|
}
|
|
}
|
|
|
|
EXIT_SCOPE("Certificate::TBSCertificate");
|
|
|
|
// signature_algorithm
|
|
{
|
|
if (!parse_algorithm_identifier(certificate.signature_algorithm).has_value())
|
|
return {};
|
|
}
|
|
|
|
// signature_value
|
|
{
|
|
READ_OBJECT_OR_FAIL(BitString, const BitmapView, value, "Certificate");
|
|
auto signature_data_result = ByteBuffer::copy(value.data(), value.size_in_bytes());
|
|
if (signature_data_result.is_error()) {
|
|
dbgln("Certificate::signature_value: out of memory");
|
|
return {};
|
|
}
|
|
certificate.signature_value = signature_data_result.release_value();
|
|
}
|
|
|
|
EXIT_SCOPE("Certificate");
|
|
|
|
dbgln_if(TLS_DEBUG, "Certificate issued for {} by {}", certificate.subject.subject, certificate.issuer.subject);
|
|
|
|
return certificate;
|
|
|
|
#undef DROP_OBJECT_OR_FAIL
|
|
#undef ENSURE_OBJECT_KIND
|
|
#undef ENTER_SCOPE_OR_FAIL
|
|
#undef ENTER_SCOPE_WITHOUT_TYPECHECK
|
|
#undef EXIT_SCOPE
|
|
#undef READ_OBJECT_OR_FAIL
|
|
}
|
|
|
|
}
|