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diff --git a/polarssl/src/include/polarssl/entropy.h b/polarssl/src/include/polarssl/entropy.h
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-/**
- * \file entropy.h
- *
- * \brief Entropy accumulator implementation
- *
- * Copyright (C) 2006-2011, Brainspark B.V.
- *
- * This file is part of PolarSSL (http://www.polarssl.org)
- * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-#ifndef POLARSSL_ENTROPY_H
-#define POLARSSL_ENTROPY_H
-
-#include <string.h>
-
-#include "config.h"
-
-#include "sha4.h"
-#if defined(POLARSSL_HAVEGE_C)
-#include "havege.h"
-#endif
-
-#define POLARSSL_ERR_ENTROPY_SOURCE_FAILED -0x003C /**< Critical entropy source failure. */
-#define POLARSSL_ERR_ENTROPY_MAX_SOURCES -0x003E /**< No more sources can be added. */
-#define POLARSSL_ERR_ENTROPY_NO_SOURCES_DEFINED -0x0040 /**< No sources have been added to poll. */
-
-#define ENTROPY_MAX_SOURCES 20 /**< Maximum number of sources supported */
-#define ENTROPY_MAX_GATHER 128 /**< Maximum amount requested from entropy sources */
-#define ENTROPY_BLOCK_SIZE 64 /**< Block size of entropy accumulator (SHA-512) */
-
-#define ENTROPY_SOURCE_MANUAL ENTROPY_MAX_SOURCES
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \brief Entropy poll callback pointer
- *
- * \param data Callback-specific data pointer
- * \param output Data to fill
- * \param len Maximum size to provide
- * \param olen The actual amount of bytes put into the buffer (Can be 0)
- *
- * \return 0 if no critical failures occurred,
- * POLARSSL_ERR_ENTROPY_SOURCE_FAILED otherwise
- */
-typedef int (*f_source_ptr)(void *, unsigned char *, size_t, size_t *);
-
-/**
- * \brief Entropy source state
- */
-typedef struct
-{
- f_source_ptr f_source; /**< The entropy source callback */
- void * p_source; /**< The callback data pointer */
- size_t size; /**< Amount received */
- size_t threshold; /**< Minimum level required before release */
-}
-source_state;
-
-/**
- * \brief Entropy context structure
- */
-typedef struct
-{
- sha4_context accumulator;
- int source_count;
- source_state source[ENTROPY_MAX_SOURCES];
-#if defined(POLARSSL_HAVEGE_C)
- havege_state havege_data;
-#endif
-}
-entropy_context;
-
-/**
- * \brief Initialize the context
- *
- * \param ctx Entropy context to initialize
- */
-void entropy_init( entropy_context *ctx );
-
-/**
- * \brief Adds an entropy source to poll
- *
- * \param ctx Entropy context
- * \param f_source Entropy function
- * \param p_source Function data
- * \param threshold Minimum required from source before entropy is released
- * ( with entropy_func() )
- *
- * \return 0 if successful or POLARSSL_ERR_ENTROPY_MAX_SOURCES
- */
-int entropy_add_source( entropy_context *ctx,
- f_source_ptr f_source, void *p_source,
- size_t threshold );
-
-/**
- * \brief Trigger an extra gather poll for the accumulator
- *
- * \param ctx Entropy context
- *
- * \return 0 if successful, or POLARSSL_ERR_ENTROPY_SOURCE_FAILED
- */
-int entropy_gather( entropy_context *ctx );
-
-/**
- * \brief Retrieve entropy from the accumulator (Max ENTROPY_BLOCK_SIZE)
- *
- * \param data Entropy context
- * \param output Buffer to fill
- * \param len Length of buffer
- *
- * \return 0 if successful, or POLARSSL_ERR_ENTROPY_SOURCE_FAILED
- */
-int entropy_func( void *data, unsigned char *output, size_t len );
-
-/**
- * \brief Add data to the accumulator manually
- *
- * \param ctx Entropy context
- * \param data Data to add
- * \param len Length of data
- *
- * \return 0 if successful
- */
-int entropy_update_manual( entropy_context *ctx,
- const unsigned char *data, size_t len );
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* entropy.h */