- std::vector<certificate *> find_certificates(const publickey *key, const std::string &statement) const;
- std::vector<certificate *> find_certificates(const std::string &statement) const;
- std::vector<certificate *> find_certificates(const publickey *key) const;
+ std::vector<const certificate *> find_certificates(const publickey *key, const std::string &statement) const;
+ std::vector<const certificate *> find_certificates(const std::string &statement) const;
+ std::vector<const certificate *> find_certificates(const publickey *key) const;