image_verify.hpp

#pragma once
#include <experimental/filesystem>

namespace phosphor
{
namespace software
{
namespace image
{

namespace fs = std::experimental::filesystem;

/** @class Signature
 *  @brief Contains signature verification functions.
 *  @details The software image class that contains the signature
 *           verification functions for signed image.
 */
class Signature
{
  public:
    Signature() = delete;
    Signature(const Signature&) = delete;
    Signature& operator=(const Signature&) = delete;
    Signature(Signature&&) = default;
    Signature& operator=(Signature&&) = default;
    ~Signature() = default;

    /** @brief Constructs Verify Class
     *
     * @param[in]  imageDirPath - file path
     */
    Signature(const fs::path& imageDirPath) : imageDirPath(imageDirPath){};

    /**
     * @brief Image signature verification function.
     *        Verify the Manifest and public key file signature using the
     *        public keys available in the system first. After successful
     *        validation, continue the whole image files signature
     *        validation using the image specific public key and the
     *        hash function.
     *
     *        @return true if signature verification was successful,
     *                     false if not
     */
    bool verify();

  private:
    /** @brief Directory where software images are placed*/
    fs::path imageDirPath;
};

} // namespace image
} // namespace software
} // namespace phosphor