Botan::Certificate_Store_In_Memory Class Reference

#include <certstor.h>

Inheritance diagram for Botan::Certificate_Store_In_Memory:

Public Member Functions
void	add_certificate (const X509_Certificate &cert)
void	add_crl (const X509_CRL &crl)
std::vector< X509_DN >	all_subjects () const override
bool	certificate_known (const X509_Certificate &cert) const
	Certificate_Store_In_Memory ()=default
	Certificate_Store_In_Memory (const std::string &dir)
	Certificate_Store_In_Memory (const X509_Certificate &cert)
std::vector< X509_Certificate >	find_all_certs (const X509_DN &subject_dn, const std::vector< uint8_t > &key_id) const override
std::optional< X509_Certificate >	find_cert (const X509_DN &subject_dn, const std::vector< uint8_t > &key_id) const override
std::optional< X509_Certificate >	find_cert_by_pubkey_sha1 (const std::vector< uint8_t > &key_hash) const override
std::optional< X509_Certificate >	find_cert_by_raw_subject_dn_sha256 (const std::vector< uint8_t > &subject_hash) const override
std::optional< X509_CRL >	find_crl_for (const X509_Certificate &subject) const override

Detailed Description

In Memory Certificate Store

Definition at line 85 of file certstor.h.

Constructor & Destructor Documentation

Certificate_Store_In_Memory() [1/3]

Botan::Certificate_Store_In_Memory::Certificate_Store_In_Memory ( const std::string &  dir )

explicit

Attempt to parse all files in dir (including subdirectories) as certificates. Ignores errors.

Certificate_Store_In_Memory() [2/3]

Botan::Certificate_Store_In_Memory::Certificate_Store_In_Memory ( const X509_Certificate &  cert )

explicit

Adds given certificate to the store.

Definition at line 175 of file certstor.cpp.

   {
   add_certificate(cert);
   }

References add_certificate().

Certificate_Store_In_Memory() [3/3]

Botan::Certificate_Store_In_Memory::Certificate_Store_In_Memory ( )

default

Create an empty store.

Member Function Documentation

add_certificate()

void Botan::Certificate_Store_In_Memory::add_certificate

(

const X509_Certificate &

cert

)

Add a certificate to the store.

Parameters

cert	certificate to be added

Definition at line 38 of file certstor.cpp.

   {
   for(const auto& c : m_certs)
      if(c == cert)
         return;
 
   m_certs.push_back(cert);
   }

Referenced by Botan::PKIX::build_all_certificate_paths(), Botan::PKIX::build_certificate_path(), and Certificate_Store_In_Memory().

add_crl()

void Botan::Certificate_Store_In_Memory::add_crl

(

const X509_CRL &

crl

)

Add a certificate revocation list (CRL) to the store.

Parameters

crl	CRL to be added

Definition at line 134 of file certstor.cpp.

   {
   const X509_DN& crl_issuer = crl.issuer_dn();
 
   for(auto& c : m_crls)
      {
      // Found an update of a previously existing one; replace it
      if(c.issuer_dn() == crl_issuer)
         {
         if(c.this_update() <= crl.this_update())
            c = crl;
         return;
         }
      }
 
   // Totally new CRL, add to the list
   m_crls.push_back(crl);
   }

References Botan::X509_CRL::issuer_dn(), and Botan::X509_CRL::this_update().

all_subjects()

std::vector< X509_DN > Botan::Certificate_Store_In_Memory::all_subjects ( ) const

overridevirtual

Returns

DNs for all certificates managed by the store

Implements Botan::Certificate_Store.

Definition at line 47 of file certstor.cpp.

   {
   std::vector<X509_DN> subjects;
   for(const auto& cert : m_certs)
      subjects.push_back(cert.subject_dn());
   return subjects;
   }

certificate_known()

bool Botan::Certificate_Store::certificate_known ( const X509_Certificate &  cert ) const

inlineinherited

Returns

whether the certificate is known

Parameters

cert	certififcate to be searched

Definition at line 73 of file certstor.h.

         {
         return find_cert(cert.subject_dn(), cert.subject_key_id()).has_value();
         }

References Botan::X509_Certificate::subject_dn(), and Botan::X509_Certificate::subject_key_id().

find_all_certs()

std::vector< X509_Certificate > Botan::Certificate_Store_In_Memory::find_all_certs ( const X509_DN &  subject_dn, const std::vector< uint8_t > &  key_id  ) const

overridevirtual

Find all certificates with a given Subject DN. Subject DN and even the key identifier might not be unique.

Implements Botan::Certificate_Store.

Definition at line 77 of file certstor.cpp.

   {
   std::vector<X509_Certificate> matches;
 
   for(const auto& cert : m_certs)
      {
      if(!key_id.empty())
         {
         std::vector<uint8_t> skid = cert.subject_key_id();
 
         if(!skid.empty() && skid != key_id) // no match
            continue;
         }
 
      if(cert.subject_dn() == subject_dn)
         matches.push_back(cert);
      }
 
   return matches;
   }

References Botan::PEM_Code::matches().

Referenced by Botan::PKIX::build_all_certificate_paths().

find_cert()

std::optional< X509_Certificate > Botan::Certificate_Store_In_Memory::find_cert ( const X509_DN &  subject_dn, const std::vector< uint8_t > &  key_id  ) const

overridevirtual

Find a certificate by Subject DN and (optionally) key identifier

Parameters

subject_dn	the subject's distinguished name
key_id	an optional key id

Returns

a matching certificate or nullopt otherwise If more than one certificate in the certificate store matches, then a single value is selected arbitrarily.

Reimplemented from Botan::Certificate_Store.

Definition at line 56 of file certstor.cpp.

   {
   for(const auto& cert : m_certs)
      {
      // Only compare key ids if set in both call and in the cert
      if(!key_id.empty())
         {
         std::vector<uint8_t> skid = cert.subject_key_id();
 
         if(!skid.empty() && skid != key_id) // no match
            continue;
         }
 
      if(cert.subject_dn() == subject_dn)
         return cert;
      }
 
   return std::nullopt;
   }

Referenced by Botan::PKIX::build_certificate_path().

find_cert_by_pubkey_sha1()

std::optional< X509_Certificate > Botan::Certificate_Store_In_Memory::find_cert_by_pubkey_sha1 ( const std::vector< uint8_t > &  key_hash ) const

overridevirtual

Find a certificate by searching for one with a matching SHA-1 hash of public key. Used for OCSP.

Parameters

key_hash

SHA-1 hash of the subject's public key

Returns

a matching certificate or nullopt otherwise

Implements Botan::Certificate_Store.

Definition at line 101 of file certstor.cpp.

   {
   if(key_hash.size() != 20)
      throw Invalid_Argument("Certificate_Store_In_Memory::find_cert_by_pubkey_sha1 invalid hash");
 
   std::unique_ptr<HashFunction> hash(HashFunction::create("SHA-1"));
 
   for(const auto& cert : m_certs){
      hash->update(cert.subject_public_key_bitstring());
      if(key_hash == hash->final_stdvec()) //final_stdvec also clears the hash to initial state
         return cert;
   }
 
   return std::nullopt;
   }

References Botan::HashFunction::create(), and hash.

find_cert_by_raw_subject_dn_sha256()

std::optional< X509_Certificate > Botan::Certificate_Store_In_Memory::find_cert_by_raw_subject_dn_sha256 ( const std::vector< uint8_t > &  subject_hash ) const

overridevirtual

Find a certificate by searching for one with a matching SHA-256 hash of raw subject name. Used for OCSP.

Parameters

subject_hash

SHA-256 hash of the subject's raw name

Returns

a matching certificate or nullopt otherwise

Implements Botan::Certificate_Store.

Definition at line 118 of file certstor.cpp.

   {
   if(subject_hash.size() != 32)
      throw Invalid_Argument("Certificate_Store_In_Memory::find_cert_by_raw_subject_dn_sha256 invalid hash");
 
   std::unique_ptr<HashFunction> hash(HashFunction::create("SHA-256"));
 
   for(const auto& cert : m_certs){
      hash->update(cert.raw_subject_dn());
      if(subject_hash == hash->final_stdvec()) //final_stdvec also clears the hash to initial state
         return cert;
   }
 
   return std::nullopt;
   }

References Botan::HashFunction::create(), and hash.

find_crl_for()

std::optional< X509_CRL > Botan::Certificate_Store_In_Memory::find_crl_for ( const X509_Certificate &  subject ) const

overridevirtual

Finds a CRL for the given certificate

Reimplemented from Botan::Certificate_Store.

Definition at line 153 of file certstor.cpp.

   {
   const std::vector<uint8_t>& key_id = subject.authority_key_id();
 
   for(const auto& c : m_crls)
      {
      // Only compare key ids if set in both call and in the CRL
      if(!key_id.empty())
         {
         std::vector<uint8_t> akid = c.authority_key_id();
 
         if(!akid.empty() && akid != key_id) // no match
            continue;
         }
 
      if(c.issuer_dn() == subject.issuer_dn())
         return c;
      }
 
   return {};
   }

References Botan::X509_Certificate::authority_key_id(), and Botan::X509_Certificate::issuer_dn().

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The documentation for this class was generated from the following files:

• src/lib/x509/certstor.h
• src/lib/x509/certstor.cpp