5079590438

Committed 25 May 2023 12:28PM UTC coverage: 92.228% (+0.5%) from 91.723%
Build # 5079590438
Build Type
Pull #3502
github
Pull Request Pull Request #3502: Apply clang-format to the codebase
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93.52
/src/tests/test_x509_path.cpp
/*
* (C) 2006,2011,2012,2014,2015 Jack Lloyd
* (C) 2022 René Meusel, Rohde & Schwarz Cybersecurity
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "tests.h"

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   #include <botan/data_src.h>
   #include <botan/exceptn.h>
   #include <botan/pkcs10.h>
   #include <botan/x509_crl.h>
   #include <botan/x509_key.h>
   #include <botan/x509path.h>
   #include <botan/internal/calendar.h>
   #include <botan/internal/filesystem.h>
   #include <botan/internal/parsing.h>

   #include <algorithm>
   #include <fstream>
   #include <limits>
   #include <map>
   #include <string>
   #include <vector>
#endif

namespace Botan_Tests {

namespace {

#if defined(BOTAN_HAS_X509_CERTIFICATES) && defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)

   #if defined(BOTAN_HAS_RSA) && defined(BOTAN_HAS_EMSA_PKCS1)

std::map<std::string, std::string> read_results(const std::string& results_file, const char delim = ':') {
   std::ifstream in(results_file);
   if(!in.good()) {
      throw Test_Error("Failed reading " + results_file);
   }

   std::map<std::string, std::string> m;
   std::string line;
   while(in.good()) {
      std::getline(in, line);
      if(line.empty()) {
         continue;
      }
      if(line[0] == '#') {
         continue;
      }

      std::vector<std::string> parts = Botan::split_on(line, delim);

      if(parts.size() != 2) {
         throw Test_Error("Invalid line " + line);
      }

      m[parts[0]] = parts[1];
   }

   return m;
}

std::set<Botan::Certificate_Status_Code> flatten(const Botan::CertificatePathStatusCodes& codes) {
   std::set<Botan::Certificate_Status_Code> result;

   for(const auto& statuses : codes) {
      result.insert(statuses.begin(), statuses.end());
   }

   return result;
}

class X509test_Path_Validation_Tests final : public Test {
   public:
      std::vector<Test::Result> run() override {
         std::vector<Test::Result> results;

         // Test certs generated by https://github.com/yymax/x509test

         std::map<std::string, std::string> expected = read_results(Test::data_file("x509/x509test/expected.txt"));

         // Current tests use SHA-1
         const Botan::Path_Validation_Restrictions restrictions(false, 80);

         Botan::X509_Certificate root(Test::data_file("x509/x509test/root.pem"));
         Botan::Certificate_Store_In_Memory trusted;
         trusted.add_certificate(root);

         auto validation_time = Botan::calendar_point(2016, 10, 21, 4, 20, 0).to_std_timepoint();

         for(auto i = expected.begin(); i != expected.end(); ++i) {
            Test::Result result("X509test path validation");
            result.start_timer();
            const std::string filename = i->first;
            const std::string expected_result = i->second;

            std::vector<Botan::X509_Certificate> certs = load_cert_file(Test::data_file("x509/x509test/" + filename));

            if(certs.empty()) {
               throw Test_Error("Failed to read certs from " + filename);
            }

            Botan::Path_Validation_Result path_result = Botan::x509_path_validate(
               certs, restrictions, trusted, "www.tls.test", Botan::Usage_Type::TLS_SERVER_AUTH, validation_time);

            if(path_result.successful_validation() && path_result.trust_root() != root) {
               path_result = Botan::Path_Validation_Result(Botan::Certificate_Status_Code::CANNOT_ESTABLISH_TRUST);
            }

            result.test_eq("test " + filename, path_result.result_string(), expected_result);
            result.test_eq("test no warnings string", path_result.warnings_string(), "");
            result.confirm("test no warnings", path_result.no_warnings());
            result.end_timer();
            results.push_back(result);
         }

         // test softfail
         {
            Test::Result result("X509test path validation softfail");
            result.start_timer();

            // this certificate must not have a OCSP URL
            const std::string filename = "ValidAltName.pem";
            std::vector<Botan::X509_Certificate> certs = load_cert_file(Test::data_file("x509/x509test/" + filename));
            if(certs.empty()) {
               throw Test_Error("Failed to read certs from " + filename);
            }

            Botan::Path_Validation_Result path_result =
               Botan::x509_path_validate(certs,
                                         restrictions,
                                         trusted,
                                         "www.tls.test",
                                         Botan::Usage_Type::TLS_SERVER_AUTH,
                                         validation_time,
                                         /* activate check_ocsp_online */ std::chrono::milliseconds(1000),
                                         {});

            if(path_result.successful_validation() && path_result.trust_root() != root) {
               path_result = Botan::Path_Validation_Result(Botan::Certificate_Status_Code::CANNOT_ESTABLISH_TRUST);
            }

            // certificate verification succeed even if no OCSP URL (softfail)
            result.confirm("test success", path_result.successful_validation());
            result.test_eq("test " + filename, path_result.result_string(), "Verified");
      #if defined(BOTAN_TARGET_OS_HAS_THREADS) && defined(BOTAN_HAS_HTTP_UTIL)
            // if softfail, there is warnings
            result.confirm("test warnings", !path_result.no_warnings());
            result.test_eq("test warnings string", path_result.warnings_string(), "[0] OCSP URL not available");
      #endif
            result.end_timer();
            results.push_back(result);
         }

         return results;
      }

   private:
      static std::vector<Botan::X509_Certificate> load_cert_file(const std::string& filename) {
         Botan::DataSource_Stream in(filename);

         std::vector<Botan::X509_Certificate> certs;
         while(!in.end_of_data()) {
            try {
               certs.emplace_back(in);
            } catch(Botan::Decoding_Error&) {}
         }

         return certs;
      }
};

BOTAN_REGISTER_TEST("x509", "x509_path_x509test", X509test_Path_Validation_Tests);

class NIST_Path_Validation_Tests final : public Test {
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> NIST_Path_Validation_Tests::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("NIST path validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   /**
   * Code to run the X.509v3 processing tests described in "Conformance
   *  Testing of Relying Party Client Certificate Path Proccessing Logic",
   *  which is available on NIST's web site.
   *
   * Known Failures/Problems:
   *  - Policy extensions are not implemented, so we skip tests #34-#53.
   *  - Tests #75 and #76 are skipped as they make use of relatively
   *    obscure CRL extensions which are not supported.
   */
   const std::string nist_test_dir = Test::data_dir() + "/x509/nist";

   std::map<std::string, std::string> expected = read_results(Test::data_file("x509/nist/expected.txt"));

   const Botan::X509_Certificate root_cert(nist_test_dir + "/root.crt");
   const Botan::X509_CRL root_crl(nist_test_dir + "/root.crl");

   const auto validation_time = Botan::calendar_point(2018, 4, 1, 9, 30, 33).to_std_timepoint();

   for(auto i = expected.begin(); i != expected.end(); ++i) {
      Test::Result result("NIST path validation");
      result.start_timer();

      const std::string test_name = i->first;

      try {
         const std::string expected_result = i->second;

         const std::string test_dir = nist_test_dir + "/" + test_name;

         const std::vector<std::string> all_files = Botan::get_files_recursive(test_dir);

         if(all_files.empty()) {
            result.test_failure("No test files found in " + test_dir);
            results.push_back(result);
            continue;
         }

         Botan::Certificate_Store_In_Memory store;

         store.add_certificate(root_cert);
         store.add_crl(root_crl);

         for(const auto& file : all_files) {
            if(file.find(".crt") != std::string::npos && file != "end.crt") {
               store.add_certificate(Botan::X509_Certificate(file));
            } else if(file.find(".crl") != std::string::npos) {
               Botan::DataSource_Stream in(file, true);
               Botan::X509_CRL crl(in);
               store.add_crl(crl);
            }
         }

         Botan::X509_Certificate end_user(test_dir + "/end.crt");

         // 1024 bit root cert
         Botan::Path_Validation_Restrictions restrictions(true, 80);

         Botan::Path_Validation_Result validation_result = Botan::x509_path_validate(
            end_user, restrictions, store, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

         result.test_eq(test_name + " path validation result", validation_result.result_string(), expected_result);
      } catch(std::exception& e) { result.test_failure(test_name, e.what()); }

      result.end_timer();
      results.push_back(result);
   }

   return results;
}

BOTAN_REGISTER_TEST("x509", "x509_path_nist", NIST_Path_Validation_Tests);

class Extended_Path_Validation_Tests final : public Test {
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> Extended_Path_Validation_Tests::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("Extended x509 path validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   const std::string extended_x509_test_dir = Test::data_dir() + "/x509/extended";

   std::map<std::string, std::string> expected = read_results(Test::data_file("x509/extended/expected.txt"));

   auto validation_time = Botan::calendar_point(2017, 9, 1, 9, 30, 33).to_std_timepoint();

   for(auto i = expected.begin(); i != expected.end(); ++i) {
      const std::string test_name = i->first;
      const std::string expected_result = i->second;

      const std::string test_dir = extended_x509_test_dir + "/" + test_name;

      Test::Result result("Extended X509 path validation");
      result.start_timer();

      const std::vector<std::string> all_files = Botan::get_files_recursive(test_dir);

      if(all_files.empty()) {
         result.test_failure("No test files found in " + test_dir);
         results.push_back(result);
         continue;
      }

      Botan::Certificate_Store_In_Memory store;

      for(const auto& file : all_files) {
         if(file.find(".crt") != std::string::npos && file != "end.crt") {
            store.add_certificate(Botan::X509_Certificate(file));
         }
      }

      Botan::X509_Certificate end_user(test_dir + "/end.crt");

      Botan::Path_Validation_Restrictions restrictions;
      Botan::Path_Validation_Result validation_result =
         Botan::x509_path_validate(end_user, restrictions, store, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

      result.test_eq(test_name + " path validation result", validation_result.result_string(), expected_result);

      result.end_timer();
      results.push_back(result);
   }

   return results;
}

BOTAN_REGISTER_TEST("x509", "x509_path_extended", Extended_Path_Validation_Tests);

class PSS_Path_Validation_Tests : public Test {
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> PSS_Path_Validation_Tests::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("RSA-PSS X509 signature validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   const std::string pss_x509_test_dir = Test::data_dir() + "/x509/pss_certs";

   std::map<std::string, std::string> expected = read_results(Test::data_file("x509/pss_certs/expected.txt"));

   std::map<std::string, std::string> validation_times =
      read_results(Test::data_file("x509/pss_certs/validation_times.txt"));

   auto validation_times_iter = validation_times.begin();
   for(auto i = expected.begin(); i != expected.end(); ++i) {
      const std::string test_name = i->first;
      const std::string expected_result = i->second;

      const std::string test_dir = pss_x509_test_dir + "/" + test_name;

      Test::Result result("RSA-PSS X509 signature validation");
      result.start_timer();

      const std::vector<std::string> all_files = Botan::get_files_recursive(test_dir);

      if(all_files.empty()) {
         result.test_failure("No test files found in " + test_dir);
         results.push_back(result);
         continue;
      }

      std::optional<Botan::X509_CRL> crl;
      std::optional<Botan::X509_Certificate> end;
      std::optional<Botan::X509_Certificate> root;
      Botan::Certificate_Store_In_Memory store;
      std::optional<Botan::PKCS10_Request> csr;

      const auto validation_year = Botan::to_u32bit((validation_times_iter++)->second);

      const auto validation_time = Botan::calendar_point(validation_year, 0, 0, 0, 0, 0).to_std_timepoint();

      for(const auto& file : all_files) {
         if(file.find("end.crt") != std::string::npos) {
            end = Botan::X509_Certificate(file);
         } else if(file.find("root.crt") != std::string::npos) {
            root = Botan::X509_Certificate(file);
            store.add_certificate(*root);
         } else if(file.find(".crl") != std::string::npos) {
            crl = Botan::X509_CRL(file);
         } else if(file.find(".csr") != std::string::npos) {
            csr = Botan::PKCS10_Request(file);
         }
      }

      if(end && crl && root)  // CRL tests
      {
         const std::vector<Botan::X509_Certificate> cert_path = {*end, *root};
         const std::vector<std::optional<Botan::X509_CRL>> crls = {crl};
         auto crl_status = Botan::PKIX::check_crl(
            cert_path,
            crls,
            validation_time);  // alternatively we could just call crl.check_signature( root_pubkey )

         result.test_eq(test_name + " check_crl result",
                        Botan::Path_Validation_Result::status_string(Botan::PKIX::overall_status(crl_status)),
                        expected_result);
      } else if(end && root)  // CRT chain tests
      {
         // sha-1 is used
         Botan::Path_Validation_Restrictions restrictions(false, 80);

         Botan::Path_Validation_Result validation_result =
            Botan::x509_path_validate(*end, restrictions, store, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

         result.test_eq(test_name + " path validation result", validation_result.result_string(), expected_result);
      } else if(end && !root)  // CRT self signed tests
      {
         auto pubkey = end->subject_public_key();
         result.test_eq(test_name + " verify signature", end->check_signature(*pubkey), !!(std::stoi(expected_result)));
      } else if(csr)  // PKCS#10 Request
      {
         auto pubkey = csr->subject_public_key();
         result.test_eq(test_name + " verify signature", csr->check_signature(*pubkey), !!(std::stoi(expected_result)));
      }

      result.end_timer();
      results.push_back(result);
   }

   return results;
}

BOTAN_REGISTER_TEST("x509", "x509_path_rsa_pss", PSS_Path_Validation_Tests);

class Validate_V1Cert_Test final : public Test {
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> Validate_V1Cert_Test::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("BSI path validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   const std::string root_crt = Test::data_file("/x509/misc/v1ca/root.pem");
   const std::string int_crt = Test::data_file("/x509/misc/v1ca/int.pem");
   const std::string ee_crt = Test::data_file("/x509/misc/v1ca/ee.pem");

   auto validation_time = Botan::calendar_point(2019, 4, 19, 23, 0, 0).to_std_timepoint();

   Botan::X509_Certificate root(root_crt);
   Botan::X509_Certificate intermediate(int_crt);
   Botan::X509_Certificate ee_cert(ee_crt);

   Botan::Certificate_Store_In_Memory trusted;
   trusted.add_certificate(root);

   std::vector<Botan::X509_Certificate> chain = {ee_cert, intermediate};

   Botan::Path_Validation_Restrictions restrictions;
   Botan::Path_Validation_Result validation_result =
      Botan::x509_path_validate(chain, restrictions, trusted, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

   Test::Result result("Verifying using v1 certificate");
   result.test_eq("Path validation result", validation_result.result_string(), "Verified");

   Botan::Certificate_Store_In_Memory empty;

   std::vector<Botan::X509_Certificate> new_chain = {ee_cert, intermediate, root};

   Botan::Path_Validation_Result validation_result2 =
      Botan::x509_path_validate(new_chain, restrictions, empty, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

   result.test_eq("Path validation result", validation_result2.result_string(), "Cannot establish trust");

   return {result};
}

BOTAN_REGISTER_TEST("x509", "x509_v1_ca", Validate_V1Cert_Test);

class Validate_V2Uid_in_V1_Test final : public Test {
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> Validate_V2Uid_in_V1_Test::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("Path validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   const std::string root_crt = Test::data_file("/x509/v2-in-v1/root.pem");
   const std::string int_crt = Test::data_file("/x509/v2-in-v1/int.pem");
   const std::string ee_crt = Test::data_file("/x509/v2-in-v1/leaf.pem");

   auto validation_time = Botan::calendar_point(2020, 1, 1, 1, 0, 0).to_std_timepoint();

   Botan::X509_Certificate root(root_crt);
   Botan::X509_Certificate intermediate(int_crt);
   Botan::X509_Certificate ee_cert(ee_crt);

   Botan::Certificate_Store_In_Memory trusted;
   trusted.add_certificate(root);

   std::vector<Botan::X509_Certificate> chain = {ee_cert, intermediate};

   Botan::Path_Validation_Restrictions restrictions;
   Botan::Path_Validation_Result validation_result =
      Botan::x509_path_validate(chain, restrictions, trusted, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

   Test::Result result("Verifying v1 certificate using v2 uid fields");
   result.test_eq("Path validation failed", validation_result.successful_validation(), false);
   result.test_eq(
      "Path validation result", validation_result.result_string(), "Encountered v2 identifiers in v1 certificate");

   return {result};
}

BOTAN_REGISTER_TEST("x509", "x509_v2uid_in_v1", Validate_V2Uid_in_V1_Test);

class Validate_Name_Constraint_SAN_Test final : public Test {
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> Validate_Name_Constraint_SAN_Test::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("Path validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   const std::string root_crt = Test::data_file("/x509/name_constraint_san/root.pem");
   const std::string int_crt = Test::data_file("/x509/name_constraint_san/int.pem");
   const std::string ee_crt = Test::data_file("/x509/name_constraint_san/leaf.pem");

   auto validation_time = Botan::calendar_point(2020, 1, 1, 1, 0, 0).to_std_timepoint();

   Botan::X509_Certificate root(root_crt);
   Botan::X509_Certificate intermediate(int_crt);
   Botan::X509_Certificate ee_cert(ee_crt);

   Botan::Certificate_Store_In_Memory trusted;
   trusted.add_certificate(root);

   std::vector<Botan::X509_Certificate> chain = {ee_cert, intermediate};

   Botan::Path_Validation_Restrictions restrictions;
   Botan::Path_Validation_Result validation_result =
      Botan::x509_path_validate(chain, restrictions, trusted, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

   Test::Result result("Verifying certificate with alternative SAN violating name constraint");
   result.test_eq("Path validation failed", validation_result.successful_validation(), false);
   result.test_eq(
      "Path validation result", validation_result.result_string(), "Certificate does not pass name constraint");

   return {result};
}

BOTAN_REGISTER_TEST("x509", "x509_name_constraint_san", Validate_Name_Constraint_SAN_Test);

class Validate_Name_Constraint_CaseInsensitive final : public Test {
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> Validate_Name_Constraint_CaseInsensitive::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("Path validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   const std::string root_crt = Test::data_file("/x509/misc/name_constraint_ci/root.pem");
   const std::string int_crt = Test::data_file("/x509/misc/name_constraint_ci/int.pem");
   const std::string ee_crt = Test::data_file("/x509/misc/name_constraint_ci/leaf.pem");

   auto validation_time = Botan::calendar_point(2021, 5, 8, 1, 0, 0).to_std_timepoint();

   Botan::X509_Certificate root(root_crt);
   Botan::X509_Certificate intermediate(int_crt);
   Botan::X509_Certificate ee_cert(ee_crt);

   Botan::Certificate_Store_In_Memory trusted;
   trusted.add_certificate(root);

   std::vector<Botan::X509_Certificate> chain = {ee_cert, intermediate};

   Botan::Path_Validation_Restrictions restrictions;
   Botan::Path_Validation_Result validation_result =
      Botan::x509_path_validate(chain, restrictions, trusted, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

   Test::Result result("DNS name constraints are case insensitive");
   result.test_eq("Path validation succeeded", validation_result.successful_validation(), true);

   return {result};
}

BOTAN_REGISTER_TEST("x509", "x509_name_constraint_ci", Validate_Name_Constraint_CaseInsensitive);

class Validate_Name_Constraint_NoCheckSelf final : public Test {
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> Validate_Name_Constraint_NoCheckSelf::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("Path validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   const std::string root_crt = Test::data_file("/x509/misc/nc_skip_self/root.pem");
   const std::string int_crt = Test::data_file("/x509/misc/nc_skip_self/int.pem");
   const std::string ee_crt = Test::data_file("/x509/misc/nc_skip_self/leaf.pem");

   auto validation_time = Botan::calendar_point(2021, 5, 8, 1, 0, 0).to_std_timepoint();

   Botan::X509_Certificate root(root_crt);
   Botan::X509_Certificate intermediate(int_crt);
   Botan::X509_Certificate ee_cert(ee_crt);

   Botan::Certificate_Store_In_Memory trusted;
   trusted.add_certificate(root);

   std::vector<Botan::X509_Certificate> chain = {ee_cert, intermediate};

   Botan::Path_Validation_Restrictions restrictions;
   Botan::Path_Validation_Result validation_result =
      Botan::x509_path_validate(chain, restrictions, trusted, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

   Test::Result result("Name constraints do not apply to the certificate which includes them");
   result.test_eq("Path validation succeeded", validation_result.successful_validation(), true);

   return {result};
}

BOTAN_REGISTER_TEST("x509", "x509_name_constraint_no_check_self", Validate_Name_Constraint_NoCheckSelf);

class BSI_Path_Validation_Tests final : public Test

{
   public:
      std::vector<Test::Result> run() override;
};

std::vector<Test::Result> BSI_Path_Validation_Tests::run() {
   if(Botan::has_filesystem_impl() == false) {
      return {Test::Result::Note("BSI path validation", "Skipping due to missing filesystem access")};
   }

   std::vector<Test::Result> results;

   const std::string bsi_test_dir = Test::data_dir() + "/x509/bsi";

   const std::map<std::string, std::string> expected = read_results(Test::data_file("/x509/bsi/expected.txt"), '$');

   for(const auto& i : expected) {
      const std::string test_name = i.first;
      std::string expected_result = i.second;

      #if !defined(BOTAN_HAS_MD5)
      if(expected_result == "Hash function used is considered too weak for security")
         expected_result = "Certificate signed with unknown/unavailable algorithm";
      #endif

      const std::string test_dir = bsi_test_dir + "/" + test_name;

      Test::Result result("BSI path validation");
      result.start_timer();

      const std::vector<std::string> all_files = Botan::get_files_recursive(test_dir);

      if(all_files.empty()) {
         result.test_failure("No test files found in " + test_dir);
         results.push_back(result);
         continue;
      }

      Botan::Certificate_Store_In_Memory trusted;
      std::vector<Botan::X509_Certificate> certs;

      auto validation_time = Botan::calendar_point(2017, 8, 19, 12, 0, 0).to_std_timepoint();

      // By convention: if CRL is a substring if the directory name,
      // we need to check the CRLs
      bool use_crl = false;
      if(test_dir.find("CRL") != std::string::npos) {
         use_crl = true;
      }

      try {
         for(const auto& file : all_files) {
            // found a trust anchor
            if(file.find("TA") != std::string::npos) {
               trusted.add_certificate(Botan::X509_Certificate(file));
            }
            // found the target certificate. It needs to be at the front of certs
            else if(file.find("TC") != std::string::npos) {
               certs.insert(certs.begin(), Botan::X509_Certificate(file));
            }
            // found a certificate that might be part of a valid certificate chain to the trust anchor
            else if(file.find(".crt") != std::string::npos) {
               certs.push_back(Botan::X509_Certificate(file));
            } else if(file.find(".crl") != std::string::npos) {
               trusted.add_crl(Botan::X509_CRL(file));
            }
         }

         Botan::Path_Validation_Restrictions restrictions(use_crl, 79, use_crl);

         /*
          * Following the test document, the test are executed 16 times with
          * randomly chosen order of the available certificates. However, the target
          * certificate needs to stay in front.
          * For certain test, the order in which the certificates are given to
          * the validation function may be relevant, i.e. if issuer DNs are
          * ambiguous.
          */
         struct random_bit_generator {
               using result_type = size_t;

               static constexpr result_type min() { return 0; }

               static constexpr result_type max() { return std::numeric_limits<size_t>::max(); }

               result_type operator()() {
                  size_t s;
                  Test::rng().randomize(reinterpret_cast<uint8_t*>(&s), sizeof(s));
                  return s;
               }
         } rbg;

         for(size_t r = 0; r < 16; r++) {
            std::shuffle(++(certs.begin()), certs.end(), rbg);

            Botan::Path_Validation_Result validation_result = Botan::x509_path_validate(
               certs, restrictions, trusted, "", Botan::Usage_Type::UNSPECIFIED, validation_time);

            // We expect to be warned
            if(expected_result.find("Warning: ") == 0) {
               std::string stripped = expected_result.substr(std::string("Warning: ").size());
               bool found_warning = false;
               for(const auto& warning_set : validation_result.warnings()) {
                  for(const auto& warning : warning_set) {
                     std::string warning_str(Botan::to_string(warning));
                     if(stripped == warning_str) {
                        result.test_eq(test_name + " path validation result", warning_str, stripped);
                        found_warning = true;
                     }
                  }
               }
               if(!found_warning) {
                  result.test_failure(test_name, "Did not receive the expected warning: " + stripped);
               }
            } else {
               result.test_eq(
                  test_name + " path validation result", validation_result.result_string(), expected_result);
            }
         }
      }

      /* Some certificates are rejected when executing the X509_Certificate constructor
       * by throwing a Decoding_Error exception.
       */
      catch(const Botan::Exception& e) {
         if(e.error_type() == Botan::ErrorType::DecodingFailure) {
            result.test_eq(test_name + " path validation result", e.what(), expected_result);
         } else {
            result.test_failure(test_name, e.what());
         }
      }

      result.end_timer();
      results.push_back(result);
   }

   return results;
}

BOTAN_REGISTER_TEST("x509", "x509_path_bsi", BSI_Path_Validation_Tests);

class Path_Validation_With_OCSP_Tests final : public Test {
   public:
      static Botan::X509_Certificate load_test_X509_cert(const std::string& path) {
         return Botan::X509_Certificate(Test::data_file(path));
      }

      static std::optional<Botan::OCSP::Response> load_test_OCSP_resp(const std::string& path) {
         return Botan::OCSP::Response(Test::read_binary_data_file(path));
      }

      static Test::Result validate_with_ocsp_with_next_update_without_max_age() {
         Test::Result result("path check with ocsp with next_update w/o max_age");
         Botan::Certificate_Store_In_Memory trusted;

         auto restrictions = Botan::Path_Validation_Restrictions(false, 110, false);

         auto ee = load_test_X509_cert("x509/ocsp/randombit.pem");
         auto ca = load_test_X509_cert("x509/ocsp/letsencrypt.pem");
         auto trust_root = load_test_X509_cert("x509/ocsp/identrust.pem");
         trusted.add_certificate(trust_root);

         const std::vector<Botan::X509_Certificate> cert_path = {ee, ca, trust_root};

         std::optional<const Botan::OCSP::Response> ocsp = load_test_OCSP_resp("x509/ocsp/randombit_ocsp.der");

         auto check_path = [&](const std::chrono::system_clock::time_point valid_time,
                               const Botan::Certificate_Status_Code expected) {
            const auto path_result = Botan::x509_path_validate(cert_path,
                                                               restrictions,
                                                               trusted,
                                                               "",
                                                               Botan::Usage_Type::UNSPECIFIED,
                                                               valid_time,
                                                               std::chrono::milliseconds(0),
                                                               {ocsp});

            return result.confirm(std::string("Status: '") + Botan::to_string(expected) + "' should match '" +
                                     Botan::to_string(path_result.result()) + "'",
                                  path_result.result() == expected);
         };

         check_path(Botan::calendar_point(2016, 11, 11, 12, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_NOT_YET_VALID);
         check_path(Botan::calendar_point(2016, 11, 18, 12, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OK);
         check_path(Botan::calendar_point(2016, 11, 20, 8, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OK);
         check_path(Botan::calendar_point(2016, 11, 28, 8, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_HAS_EXPIRED);

         return result;
      }

      static Test::Result validate_with_ocsp_with_next_update_with_max_age() {
         Test::Result result("path check with ocsp with next_update with max_age");
         Botan::Certificate_Store_In_Memory trusted;

         auto restrictions = Botan::Path_Validation_Restrictions(false, 110, false, std::chrono::minutes(59));

         auto ee = load_test_X509_cert("x509/ocsp/randombit.pem");
         auto ca = load_test_X509_cert("x509/ocsp/letsencrypt.pem");
         auto trust_root = load_test_X509_cert("x509/ocsp/identrust.pem");
         trusted.add_certificate(trust_root);

         const std::vector<Botan::X509_Certificate> cert_path = {ee, ca, trust_root};

         auto ocsp = load_test_OCSP_resp("x509/ocsp/randombit_ocsp.der");

         auto check_path = [&](const std::chrono::system_clock::time_point valid_time,
                               const Botan::Certificate_Status_Code expected) {
            const auto path_result = Botan::x509_path_validate(cert_path,
                                                               restrictions,
                                                               trusted,
                                                               "",
                                                               Botan::Usage_Type::UNSPECIFIED,
                                                               valid_time,
                                                               std::chrono::milliseconds(0),
                                                               {ocsp});

            return result.confirm(std::string("Status: '") + Botan::to_string(expected) + "' should match '" +
                                     Botan::to_string(path_result.result()) + "'",
                                  path_result.result() == expected);
         };

         check_path(Botan::calendar_point(2016, 11, 11, 12, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_NOT_YET_VALID);
         check_path(Botan::calendar_point(2016, 11, 18, 12, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OK);
         check_path(Botan::calendar_point(2016, 11, 20, 8, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OK);
         check_path(Botan::calendar_point(2016, 11, 28, 8, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_HAS_EXPIRED);

         return result;
      }

      static Test::Result validate_with_ocsp_without_next_update_without_max_age() {
         Test::Result result("path check with ocsp w/o next_update w/o max_age");
         Botan::Certificate_Store_In_Memory trusted;

         auto restrictions = Botan::Path_Validation_Restrictions(false, 110, false);

         auto ee = load_test_X509_cert("x509/ocsp/patrickschmidt.pem");
         auto ca = load_test_X509_cert("x509/ocsp/bdrive_encryption.pem");
         auto trust_root = load_test_X509_cert("x509/ocsp/bdrive_root.pem");

         trusted.add_certificate(trust_root);

         const std::vector<Botan::X509_Certificate> cert_path = {ee, ca, trust_root};

         auto ocsp = load_test_OCSP_resp("x509/ocsp/patrickschmidt_ocsp.der");

         auto check_path = [&](const std::chrono::system_clock::time_point valid_time,
                               const Botan::Certificate_Status_Code expected) {
            const auto path_result = Botan::x509_path_validate(cert_path,
                                                               restrictions,
                                                               trusted,
                                                               "",
                                                               Botan::Usage_Type::UNSPECIFIED,
                                                               valid_time,
                                                               std::chrono::milliseconds(0),
                                                               {ocsp});

            return result.confirm(std::string("Status: '") + Botan::to_string(expected) + "' should match '" +
                                     Botan::to_string(path_result.result()) + "'",
                                  path_result.result() == expected);
         };

         check_path(Botan::calendar_point(2019, 5, 28, 7, 0, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_NOT_YET_VALID);
         check_path(Botan::calendar_point(2019, 5, 28, 7, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OK);
         check_path(Botan::calendar_point(2019, 5, 28, 8, 0, 0).to_std_timepoint(), Botan::Certificate_Status_Code::OK);

         return result;
      }

      static Test::Result validate_with_ocsp_without_next_update_with_max_age() {
         Test::Result result("path check with ocsp w/o next_update with max_age");
         Botan::Certificate_Store_In_Memory trusted;

         auto restrictions = Botan::Path_Validation_Restrictions(false, 110, false, std::chrono::minutes(59));

         auto ee = load_test_X509_cert("x509/ocsp/patrickschmidt.pem");
         auto ca = load_test_X509_cert("x509/ocsp/bdrive_encryption.pem");
         auto trust_root = load_test_X509_cert("x509/ocsp/bdrive_root.pem");

         trusted.add_certificate(trust_root);

         const std::vector<Botan::X509_Certificate> cert_path = {ee, ca, trust_root};

         auto ocsp = load_test_OCSP_resp("x509/ocsp/patrickschmidt_ocsp.der");

         auto check_path = [&](const std::chrono::system_clock::time_point valid_time,
                               const Botan::Certificate_Status_Code expected) {
            const auto path_result = Botan::x509_path_validate(cert_path,
                                                               restrictions,
                                                               trusted,
                                                               "",
                                                               Botan::Usage_Type::UNSPECIFIED,
                                                               valid_time,
                                                               std::chrono::milliseconds(0),
                                                               {ocsp});

            return result.confirm(std::string("Status: '") + Botan::to_string(expected) + "' should match '" +
                                     Botan::to_string(path_result.result()) + "'",
                                  path_result.result() == expected);
         };

         check_path(Botan::calendar_point(2019, 5, 28, 7, 0, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_NOT_YET_VALID);
         check_path(Botan::calendar_point(2019, 5, 28, 7, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OK);
         check_path(Botan::calendar_point(2019, 5, 28, 8, 0, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_IS_TOO_OLD);

         return result;
      }

      static Test::Result validate_with_ocsp_with_authorized_responder() {
         Test::Result result("path check with ocsp response from authorized responder certificate");
         Botan::Certificate_Store_In_Memory trusted;

         auto restrictions = Botan::Path_Validation_Restrictions(true,   // require revocation info
                                                                 110,    // minimum key strength
                                                                 true);  // OCSP for all intermediates

         auto ee = load_test_X509_cert("x509/ocsp/bdr.pem");
         auto ca = load_test_X509_cert("x509/ocsp/bdr-int.pem");
         auto trust_root = load_test_X509_cert("x509/ocsp/bdr-root.pem");

         // These OCSP responses are signed by an authorized OCSP responder
         // certificate issued by `ca` and `trust_root` respectively. Note that
         // the responder certificates contain the "OCSP No Check" extension,
         // meaning that they themselves do not need a revocation check via OCSP.
         auto ocsp_ee = load_test_OCSP_resp("x509/ocsp/bdr-ocsp-resp.der");
         auto ocsp_ca = load_test_OCSP_resp("x509/ocsp/bdr-int-ocsp-resp.der");

         trusted.add_certificate(trust_root);
         const std::vector<Botan::X509_Certificate> cert_path = {ee, ca, trust_root};

         auto check_path = [&](const std::chrono::system_clock::time_point valid_time,
                               const Botan::Certificate_Status_Code expected) {
            const auto path_result = Botan::x509_path_validate(cert_path,
                                                               restrictions,
                                                               trusted,
                                                               "",
                                                               Botan::Usage_Type::UNSPECIFIED,
                                                               valid_time,
                                                               std::chrono::milliseconds(0),
                                                               {ocsp_ee, ocsp_ca});

            return result.confirm(std::string("Status: '") + Botan::to_string(expected) + "' should match '" +
                                     Botan::to_string(path_result.result()) + "'",
                                  path_result.result() == expected);
         };

         check_path(Botan::calendar_point(2022, 9, 18, 16, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_NOT_YET_VALID);
         check_path(Botan::calendar_point(2022, 9, 19, 16, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OK);
         check_path(Botan::calendar_point(2022, 9, 20, 16, 30, 0).to_std_timepoint(),
                    Botan::Certificate_Status_Code::OCSP_HAS_EXPIRED);

         return result;
      }

      static Test::Result validate_with_ocsp_with_authorized_responder_without_keyusage() {
         Test::Result result(
            "path check with ocsp response from authorized responder certificate (without sufficient key usage)");
         Botan::Certificate_Store_In_Memory trusted;

         auto restrictions = Botan::Path_Validation_Restrictions(true,    // require revocation info
                                                                 110,     // minimum key strength
                                                                 false);  // OCSP for all intermediates

         // See `src/scripts/mychain_creater.sh` if you need to recreate those
         auto ee = load_test_X509_cert("x509/ocsp/mychain_ee.pem");
         auto ca = load_test_X509_cert("x509/ocsp/mychain_int.pem");
         auto trust_root = load_test_X509_cert("x509/ocsp/mychain_root.pem");

         auto ocsp_ee_delegate = load_test_OCSP_resp("x509/ocsp/mychain_ocsp_for_ee_delegate_signed.der").value();
         auto ocsp_ee_delegate_malformed =
            load_test_OCSP_resp("x509/ocsp/mychain_ocsp_for_ee_delegate_signed_malformed.der").value();

         trusted.add_certificate(trust_root);
         const std::vector<Botan::X509_Certificate> cert_path = {ee, ca, trust_root};

         auto check_path = [&](const std::chrono::system_clock::time_point valid_time,
                               const Botan::OCSP::Response& ocsp_ee,
                               const Botan::Certificate_Status_Code expected,
                               const std::optional<Botan::Certificate_Status_Code> also_expected = std::nullopt) {
            const auto path_result = Botan::x509_path_validate(cert_path,
                                                               restrictions,
                                                               trusted,
                                                               "",
                                                               Botan::Usage_Type::UNSPECIFIED,
                                                               valid_time,
                                                               std::chrono::milliseconds(0),
                                                               {ocsp_ee});

            result.test_is_eq("should result in expected validation status code", path_result.result(), expected);
            if(also_expected) {
               result.confirm("Secondary error is also present",
                              flatten(path_result.all_statuses()).contains(also_expected.value()));
            }
         };

         check_path(Botan::calendar_point(2022, 9, 22, 23, 30, 0).to_std_timepoint(),
                    ocsp_ee_delegate,
                    Botan::Certificate_Status_Code::VERIFIED);
         check_path(Botan::calendar_point(2022, 10, 8, 23, 30, 0).to_std_timepoint(),
                    ocsp_ee_delegate,
                    Botan::Certificate_Status_Code::CERT_HAS_EXPIRED,
                    Botan::Certificate_Status_Code::OCSP_ISSUER_NOT_TRUSTED);
         check_path(Botan::calendar_point(2022, 9, 22, 23, 30, 0).to_std_timepoint(),
                    ocsp_ee_delegate_malformed,
                    Botan::Certificate_Status_Code::OCSP_RESPONSE_MISSING_KEYUSAGE,
                    Botan::Certificate_Status_Code::OCSP_ISSUER_NOT_TRUSTED);

         return result;
      }

      static Test::Result validate_with_forged_ocsp_using_self_signed_cert() {
         Test::Result result("path check with forged ocsp using self-signed certificate");
         Botan::Certificate_Store_In_Memory trusted;

         auto restrictions = Botan::Path_Validation_Restrictions(true,    // require revocation info
                                                                 110,     // minimum key strength
                                                                 false);  // OCSP for all intermediates

         auto ee = load_test_X509_cert("x509/ocsp/randombit.pem");
         auto ca = load_test_X509_cert("x509/ocsp/letsencrypt.pem");
         auto trust_root = load_test_X509_cert("x509/ocsp/identrust.pem");
         trusted.add_certificate(trust_root);

         const std::vector<Botan::X509_Certificate> cert_path = {ee, ca, trust_root};

         auto check_path = [&](const std::string& forged_ocsp,
                               const Botan::Certificate_Status_Code expected,
                               const Botan::Certificate_Status_Code also_expected) {
            auto ocsp = load_test_OCSP_resp(forged_ocsp);
            const auto path_result =
               Botan::x509_path_validate(cert_path,
                                         restrictions,
                                         trusted,
                                         "",
                                         Botan::Usage_Type::UNSPECIFIED,
                                         Botan::calendar_point(2016, 11, 18, 12, 30, 0).to_std_timepoint(),
                                         std::chrono::milliseconds(0),
                                         {ocsp});

            result.test_is_eq(
               "Path validation with forged OCSP response should fail with", path_result.result(), expected);
            result.confirm("Secondary error is also present",
                           flatten(path_result.all_statuses()).contains(also_expected));
            result.test_note(std::string("Failed with: ") + Botan::to_string(path_result.result()));
         };

         // In both cases the path validation should detect the forged OCSP
         // response and generate an appropriate error. By no means it should
         // follow the unauthentic OCSP response.
         check_path("x509/ocsp/randombit_ocsp_forged_valid.der",
                    Botan::Certificate_Status_Code::CERT_ISSUER_NOT_FOUND,
                    Botan::Certificate_Status_Code::OCSP_ISSUER_NOT_TRUSTED);
         check_path("x509/ocsp/randombit_ocsp_forged_revoked.der",
                    Botan::Certificate_Status_Code::CERT_ISSUER_NOT_FOUND,
                    Botan::Certificate_Status_Code::OCSP_ISSUER_NOT_TRUSTED);

         return result;
      }

      static Test::Result validate_with_ocsp_self_signed_by_intermediate_cert() {
         Test::Result result(
            "path check with ocsp response for intermediate that is (maliciously) self-signed by the intermediate");
         Botan::Certificate_Store_In_Memory trusted;

         auto restrictions = Botan::Path_Validation_Restrictions(true,   // require revocation info
                                                                 110,    // minimum key strength
                                                                 true);  // OCSP for all intermediates

         // See `src/scripts/mychain_creater.sh` if you need to recreate those
         auto ee = load_test_X509_cert("x509/ocsp/mychain_ee.pem");
         auto ca = load_test_X509_cert("x509/ocsp/mychain_int.pem");
         auto trust_root = load_test_X509_cert("x509/ocsp/mychain_root.pem");

         // this OCSP response for EE is valid (signed by intermediate cert)
         auto ocsp_ee = load_test_OCSP_resp("x509/ocsp/mychain_ocsp_for_ee.der");

         // this OCSP response for Intermediate is malicious (signed by intermediate itself)
         auto ocsp_ca = load_test_OCSP_resp("x509/ocsp/mychain_ocsp_for_int_self_signed.der");

         trusted.add_certificate(trust_root);
         const std::vector<Botan::X509_Certificate> cert_path = {ee, ca, trust_root};

         const auto path_result =
            Botan::x509_path_validate(cert_path,
                                      restrictions,
                                      trusted,
                                      "",
                                      Botan::Usage_Type::UNSPECIFIED,
                                      Botan::calendar_point(2022, 9, 22, 22, 30, 0).to_std_timepoint(),
                                      std::chrono::milliseconds(0),
                                      {ocsp_ee, ocsp_ca});
         result.confirm("should reject intermediate OCSP response",
                        path_result.result() == Botan::Certificate_Status_Code::OCSP_ISSUER_NOT_FOUND);
         result.test_note(std::string("Failed with: ") + Botan::to_string(path_result.result()));

         return result;
      }

      std::vector<Test::Result> run() override {
         return {validate_with_ocsp_with_next_update_without_max_age(),
                 validate_with_ocsp_with_next_update_with_max_age(),
                 validate_with_ocsp_without_next_update_without_max_age(),
                 validate_with_ocsp_without_next_update_with_max_age(),
                 validate_with_ocsp_with_authorized_responder(),
                 validate_with_ocsp_with_authorized_responder_without_keyusage(),
                 validate_with_forged_ocsp_using_self_signed_cert(),
                 validate_with_ocsp_self_signed_by_intermediate_cert()};
      }
};

BOTAN_REGISTER_TEST("x509", "x509_path_with_ocsp", Path_Validation_With_OCSP_Tests);

   #endif

   #if defined(BOTAN_HAS_ECDSA)

class CVE_2020_0601_Tests final : public Test {
   public:
      std::vector<Test::Result> run() override {
         Test::Result result("CVE-2020-0601");
         auto ca_crt = Botan::X509_Certificate(Test::data_file("x509/cve-2020-0601/ca.pem"));
         auto fake_ca_crt = Botan::X509_Certificate(Test::data_file("x509/cve-2020-0601/fake_ca.pem"));
         auto ee_crt = Botan::X509_Certificate(Test::data_file("x509/cve-2020-0601/ee.pem"));

         Botan::Certificate_Store_In_Memory trusted;
         trusted.add_certificate(ca_crt);

         const auto restrictions = Botan::Path_Validation_Restrictions(false, 80, false);

         const auto valid_time = Botan::calendar_point(2020, 1, 20, 0, 0, 0).to_std_timepoint();

         const auto path_result1 = Botan::x509_path_validate(std::vector<Botan::X509_Certificate>{ee_crt, fake_ca_crt},
                                                             restrictions,
                                                             trusted,
                                                             "",
                                                             Botan::Usage_Type::UNSPECIFIED,
                                                             valid_time,
                                                             std::chrono::milliseconds(0),
                                                             {});

         result.confirm("Validation failed", !path_result1.successful_validation());

         result.confirm("Expected status",
                        path_result1.result() == Botan::Certificate_Status_Code::CANNOT_ESTABLISH_TRUST);

         const auto path_result2 = Botan::x509_path_validate(std::vector<Botan::X509_Certificate>{ee_crt},
                                                             restrictions,
                                                             trusted,
                                                             "",
                                                             Botan::Usage_Type::UNSPECIFIED,
                                                             valid_time,
                                                             std::chrono::milliseconds(0),
                                                             {});

         result.confirm("Validation failed", !path_result2.successful_validation());

         result.confirm("Expected status",
                        path_result2.result() == Botan::Certificate_Status_Code::CERT_ISSUER_NOT_FOUND);

         // Verify the signature from the bad CA is actually correct
         Botan::Certificate_Store_In_Memory frusted;
         frusted.add_certificate(fake_ca_crt);

         const auto path_result3 = Botan::x509_path_validate(std::vector<Botan::X509_Certificate>{ee_crt},
                                                             restrictions,
                                                             frusted,
                                                             "",
                                                             Botan::Usage_Type::UNSPECIFIED,
                                                             valid_time,
                                                             std::chrono::milliseconds(0),
                                                             {});

         result.confirm("Validation succeeded", path_result3.successful_validation());

         return {result};
      }
};

BOTAN_REGISTER_TEST("x509", "x509_cve_2020_0601", CVE_2020_0601_Tests);

   #endif

   #if defined(BOTAN_HAS_XMSS_RFC8391)

class XMSS_Path_Validation_Tests final : public Test {
   public:
      static Test::Result validate_self_signed(const std::string& name, const std::string& file) {
         Test::Result result(name);

         Botan::Path_Validation_Restrictions restrictions;
         auto self_signed = Botan::X509_Certificate(Test::data_dir() + "/x509/xmss/" + file);

         auto cert_path = std::vector<Botan::X509_Certificate>{self_signed};
         auto valid_time = Botan::calendar_point(2019, 10, 8, 4, 45, 0).to_std_timepoint();

         auto status = Botan::PKIX::overall_status(
            Botan::PKIX::check_chain(cert_path, valid_time, "", Botan::Usage_Type::UNSPECIFIED, restrictions));
         result.test_eq("Cert validation status", Botan::to_string(status), "Verified");
         return result;
      }

      std::vector<Test::Result> run() override {
         if(Botan::has_filesystem_impl() == false) {
            return {Test::Result::Note("XMSS path validation", "Skipping due to missing filesystem access")};
         }

         return {
            validate_self_signed("XMSS path validation with certificate created by ISARA corp", "xmss_isara_root.pem"),
            validate_self_signed("XMSS path validation with certificate created by BouncyCastle",
                                 "xmss_bouncycastle_sha256_10_root.pem")};
      }
};

BOTAN_REGISTER_TEST("x509", "x509_path_xmss", XMSS_Path_Validation_Tests);

   #endif

#endif

}

}
randombit / botan / 5079590438

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