security: Adding SecTpmFile which a pure file based "TPM".
Change-Id: I73b6ed8e0876217642ab6a8733c4da35ef9e69d9
diff --git a/include/ndn-cpp-dev/security/sec-tpm-file.hpp b/include/ndn-cpp-dev/security/sec-tpm-file.hpp
new file mode 100644
index 0000000..8ef5586
--- /dev/null
+++ b/include/ndn-cpp-dev/security/sec-tpm-file.hpp
@@ -0,0 +1,115 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/**
+ * Copyright (C) 2013 Regents of the University of California.
+ * @author: Xingyu Ma <maxy12@cs.ucla.edu>
+ * Yingdi Yu <yingdi@cs.ucla.edu>
+ * See COPYING for copyright and distribution information.
+ */
+
+#ifndef NDN_SEC_TPM_FILE_HPP
+#define NDN_SEC_TPM_FILE_HPP
+
+#include "../common.hpp"
+
+#include "sec-tpm.hpp"
+
+namespace ndn
+{
+
+class SecTpmFile : public SecTpm
+{
+public:
+ struct Error : public SecTpm::Error { Error(const std::string &what) : SecTpm::Error(what) {} };
+
+ SecTpmFile(const std::string & dir = "");
+
+ /**
+ * @brief destructor
+ */
+ virtual
+ ~SecTpmFile() {};
+
+ /**
+ * 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
+ generateKeyPairInTpm(const Name & keyName, KeyType keyType, int keySize);
+
+ /**
+ * Get the public key
+ * @param keyName The name of public key.
+ * @return The public key.
+ */
+ virtual ptr_lib::shared_ptr<PublicKey>
+ getPublicKeyFromTpm(const Name & keyName);
+
+ /**
+ * Fetch the private key for keyName and sign the data, returning a signature block.
+ * Throw Error if signing fails.
+ * @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 block.
+ */
+ virtual Block
+ signInTpm(const uint8_t *data, size_t dataLength, const Name& keyName, DigestAlgorithm 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 ConstBufferPtr
+ decryptInTpm(const Name& keyName, const uint8_t* data, size_t dataLength, bool 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 decryption is used.
+ * @return The encrypted data.
+ */
+ virtual ConstBufferPtr
+ encryptInTpm(const Name& keyName, const uint8_t* data, size_t dataLength, bool isSymmetric);
+
+
+ /**
+ * 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
+ generateSymmetricKeyInTpm(const Name& keyName, KeyType keyType, int keySize);
+
+ /**
+ * 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
+ doesKeyExistInTpm(const Name& keyName, KeyClass keyClass);
+
+ std::string
+ nameTransform(const std::string &keyName, const std::string &extension);
+
+private:
+ void
+ maintainMapping(std::string str1, std::string str2);
+
+private:
+ class Impl;
+ std::auto_ptr<Impl> impl_;
+};
+}//ndn
+
+#endif