unsealing-key.hpp

#pragma once
 
#include "sodium-buffer.hpp"
#include "sealing-key.hpp"
 
class UnsealingKey {
public:
  const SodiumBuffer unsealingKeyBytes;
  const std::vector<unsigned char> sealingKeyBytes;
  const std::string recipe;
 
  UnsealingKey(
    const SodiumBuffer unsealingKeyBytes,
    const std::vector<unsigned char> sealingKeyBytes,
    const std::string recipe
  );
 
  UnsealingKey(
    const SodiumBuffer& seedBuffer,
    const std::string& recipe
  );
 
  UnsealingKey(
    const std::string& seedString,
    const std::string& recipe
  );
 
  static UnsealingKey deriveFromSeed(
    const std::string& seedString,
    const std::string& recipe
  );
 
 
 
  static UnsealingKey fromJson(
    const std::string& unsealingKeyAsJson
  );
 
 
  UnsealingKey(
    const UnsealingKey& other
  );
 
  const SealingKey getSealingKey() const;
 
  const SodiumBuffer unseal(
    const unsigned char* ciphertext,
    const size_t ciphertextLength,
    const std::string& unsealingInstructions
  ) const;
 
  const SodiumBuffer unseal(
    const std::vector<unsigned char> &ciphertext,
    const std::string& unsealingInstructions = {}
  ) const;
 
  const SodiumBuffer unseal(
    const PackagedSealedMessage& packagedSealedMessage
  ) const;
 
  static const SodiumBuffer unseal(
    const PackagedSealedMessage &packagedSealedMessage,
      const std::string& seedString
  ) {
    return UnsealingKey(seedString, packagedSealedMessage.recipe)
      .unseal(packagedSealedMessage.ciphertext, packagedSealedMessage.unsealingInstructions);
  }
 
  const std::string toJson(
    int indent = -1,
    const char indent_char = ' '
  ) const;
 
  const SodiumBuffer toSerializedBinaryForm() const;
 
  static UnsealingKey fromSerializedBinaryForm(const SodiumBuffer &serializedBinaryForm);
 
 
};