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// A base class for signing unstructured data. This class is mockable.
#ifndef CERT_TRANS_LOG_SIGNER_H_
#define CERT_TRANS_LOG_SIGNER_H_
#include <openssl/evp.h>
#include <openssl/x509.h> // for i2d_PUBKEY
#include <stdint.h>
#include "base/macros.h"
#include "proto/ct.pb.h"
#include "util/openssl_scoped_types.h"
namespace cert_trans {
class Signer {
public:
explicit Signer(EVP_PKEY* pkey);
virtual ~Signer() = default;
virtual std::string KeyID() const;
virtual void Sign(const std::string& data,
ct::DigitallySigned* signature) const;
protected:
// A constructor for mocking.
Signer();
private:
std::string RawSign(const std::string& data) const;
ScopedEVP_PKEY pkey_;
ct::DigitallySigned::HashAlgorithm hash_algo_;
ct::DigitallySigned::SignatureAlgorithm sig_algo_;
std::string key_id_;
DISALLOW_COPY_AND_ASSIGN(Signer);
};
} // namespace cert_trans
#endif // CERT_TRANS_LOG_SIGNER_H_
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