cms_enc.h

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/*
* CMS Encoding
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
 
#ifndef BOTAN_CMS_ENCODER_H__
#define BOTAN_CMS_ENCODER_H__
 
#include <botan/x509cert.h>
#include <botan/x509stor.h>
#include <botan/pkcs8.h>
#include <botan/symkey.h>
 
namespace Botan {
 
/**
* CMS Encoding Operation
*/
class BOTAN_DLL CMS_Encoder
   {
   public:
 
      void encrypt(RandomNumberGenerator&,
                   const X509_Certificate&, const std::string = "");
 
      void encrypt(RandomNumberGenerator& rng,
                   const std::string&, const std::string& = "");
 
      void encrypt(RandomNumberGenerator& rng,
                   const SymmetricKey&, const std::string& = "");
 
      void authenticate(const X509_Certificate&, const std::string& = "");
      void authenticate(const std::string&, const std::string& = "");
      void authenticate(const SymmetricKey&, const std::string& = "");
 
      void sign(const X509_Certificate& cert,
                const Private_Key& key,
                RandomNumberGenerator& rng,
                const std::vector<X509_Certificate>& cert_chain,
                const std::string& hash,
                const std::string& padding);
 
      void digest(const std::string& = "");
 
      void compress(const std::string&);
      static bool can_compress_with(const std::string&);
 
      SecureVector<byte> get_contents();
      std::string PEM_contents();
 
      void set_data(const std::string&);
      void set_data(const byte[], size_t);
 
      CMS_Encoder(const std::string& str) { set_data(str); }
      CMS_Encoder(const byte buf[], size_t length) { set_data(buf, length); }
   private:
      void add_layer(const std::string&, DER_Encoder&);
 
      void encrypt_ktri(RandomNumberGenerator&,
                        const X509_Certificate&, Public_Key*,
                        const std::string&);
      void encrypt_kari(RandomNumberGenerator&,
                        const X509_Certificate&, Public_Key*,
                        const std::string&);
 
      SecureVector<byte> do_encrypt(RandomNumberGenerator& rng,
                                    const SymmetricKey&, const std::string&);
 
      static SecureVector<byte> make_econtent(const SecureVector<byte>&,
                                              const std::string&);
 
      static SymmetricKey setup_key(RandomNumberGenerator& rng,
                                    const std::string&);
 
      static SecureVector<byte> wrap_key(RandomNumberGenerator& rng,
                                         const std::string&,
                                         const SymmetricKey&,
                                         const SymmetricKey&);
 
      static SecureVector<byte> encode_params(const std::string&,
                                              const SymmetricKey&,
                                              const InitializationVector&);
 
      SecureVector<byte> data;
      std::string type;
   };
 
}
 
#endif