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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/**
* Copyright (C) 2013 Regents of the University of California.
* @author: Yingdi Yu <yingdi@cs.ucla.edu>
* @author: Jeff Thompson <jefft0@remap.ucla.edu>
* See COPYING for copyright and distribution information.
*/
#ifndef NDN_PRIVATE_KEY_STORAGE_HPP
#define NDN_PRIVATE_KEY_STORAGE_HPP
#include <string>
#include "../../util/blob.hpp"
#include "../certificate/public-key.hpp"
#include "../security-common.hpp"
#include "../../name.hpp"
namespace ndn {
class PrivateKeyStorage {
public:
/**
* The virtual destructor.
*/
virtual
~PrivateKeyStorage() {}
/**
* Generate a pair of asymmetric keys.
* @param keyName The name of the key pair.
* @param keyType The type of the key pair, e.g. KEY_TYPE_RSA.
* @param keySize The size of the key pair.
*/
virtual void
generateKeyPair(const Name& keyName, KeyType keyType = KEY_TYPE_RSA, int keySize = 2048) = 0;
/**
* Get the public key
* @param keyName The name of public key.
* @return The public key.
*/
virtual ptr_lib::shared_ptr<PublicKey>
getPublicKey(const Name& keyName) = 0;
/**
* Fetch the private key for keyName and sign the data, returning a signature Blob.
* @param data Pointer to the input byte array.
* @param dataLength The length of data.
* @param keyName The name of the signing key.
* @param digestAlgorithm the digest algorithm.
* @return The signature, or a null pointer if signing fails.
*/
virtual Blob
sign(const uint8_t *data, size_t dataLength, const Name& keyName, DigestAlgorithm digestAlgorithm = DIGEST_ALGORITHM_SHA256) = 0;
Blob
sign(const Blob& data, const Name& keyName, DigestAlgorithm digestAlgorithm = DIGEST_ALGORITHM_SHA256)
{
return sign(data.buf(), data.size(), keyName, digestAlgorithm);
}
/**
* Decrypt data.
* @param keyName The name of the decrypting key.
* @param data The byte to be decrypted.
* @param dataLength the length of data.
* @param isSymmetric If true symmetric encryption is used, otherwise asymmetric encryption is used.
* @return The decrypted data.
*/
virtual Blob
decrypt(const Name& keyName, const uint8_t* data, size_t dataLength, bool isSymmetric = false) = 0;
Blob
decrypt(const Name& keyName, const Blob& data, bool isSymmetric = false)
{
return decrypt(keyName, data.buf(), data.size(), isSymmetric);
}
/**
* Encrypt data.
* @param keyName The name of the encrypting key.
* @param data The byte to be encrypted.
* @param dataLength the length of data.
* @param isSymmetric If true symmetric encryption is used, otherwise asymmetric encryption is used.
* @return The encrypted data.
*/
virtual Blob
encrypt(const Name& keyName, const uint8_t* data, size_t dataLength, bool isSymmetric = false) = 0;
Blob
encrypt(const Name& keyName, const Blob& data, bool isSymmetric = false)
{
return encrypt(keyName, data.buf(), data.size(), isSymmetric);
}
/**
* @brief Generate a symmetric key.
* @param keyName The name of the key.
* @param keyType The type of the key, e.g. KEY_TYPE_AES.
* @param keySize The size of the key.
*/
virtual void
generateKey(const Name& keyName, KeyType keyType = KEY_TYPE_AES, int keySize = 256) = 0;
/**
* Check if a particular key exists.
* @param keyName The name of the key.
* @param keyClass The class of the key, e.g. KEY_CLASS_PUBLIC, KEY_CLASS_PRIVATE, or KEY_CLASS_SYMMETRIC.
* @return True if the key exists, otherwise false.
*/
virtual bool
doesKeyExist(const Name& keyName, KeyClass keyClass) = 0;
};
}
#endif