diff --git a/include/polarssl/sha512.h b/include/polarssl/sha512.h
new file mode 100644
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--- /dev/null
+++ b/include/polarssl/sha512.h
@@ -0,0 +1,189 @@
+/**
+ * \file sha512.h
+ *
+ * \brief SHA-384 and SHA-512 cryptographic hash function
+ *
+ *  Copyright (C) 2006-2013, 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_SHA512_H
+#define POLARSSL_SHA512_H
+
+#include "config.h"
+
+#include <string.h>
+
+#if defined(_MSC_VER) || defined(__WATCOMC__)
+  #define UL64(x) x##ui64
+  typedef unsigned __int64 uint64_t;
+#else
+  #include <inttypes.h>
+  #define UL64(x) x##ULL
+#endif
+
+#define POLARSSL_ERR_SHA512_FILE_IO_ERROR              -0x007A  /**< Read/write error in file. */
+
+#if !defined(POLARSSL_SHA512_ALT)
+// Regular implementation
+//
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          SHA-512 context structure
+ */
+typedef struct
+{
+    uint64_t total[2];          /*!< number of bytes processed  */
+    uint64_t state[8];          /*!< intermediate digest state  */
+    unsigned char buffer[128];  /*!< data block being processed */
+
+    unsigned char ipad[128];    /*!< HMAC: inner padding        */
+    unsigned char opad[128];    /*!< HMAC: outer padding        */
+    int is384;                  /*!< 0 => SHA-512, else SHA-384 */
+}
+sha512_context;
+
+/**
+ * \brief          SHA-512 context setup
+ *
+ * \param ctx      context to be initialized
+ * \param is384    0 = use SHA512, 1 = use SHA384
+ */
+void sha512_starts( sha512_context *ctx, int is384 );
+
+/**
+ * \brief          SHA-512 process buffer
+ *
+ * \param ctx      SHA-512 context
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ */
+void sha512_update( sha512_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief          SHA-512 final digest
+ *
+ * \param ctx      SHA-512 context
+ * \param output   SHA-384/512 checksum result
+ */
+void sha512_finish( sha512_context *ctx, unsigned char output[64] );
+
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* POLARSSL_SHA512_ALT */
+#include "sha512_alt.h"
+#endif /* POLARSSL_SHA512_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Output = SHA-512( input buffer )
+ *
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   SHA-384/512 checksum result
+ * \param is384    0 = use SHA512, 1 = use SHA384
+ */
+void sha512( const unsigned char *input, size_t ilen,
+             unsigned char output[64], int is384 );
+
+/**
+ * \brief          Output = SHA-512( file contents )
+ *
+ * \param path     input file name
+ * \param output   SHA-384/512 checksum result
+ * \param is384    0 = use SHA512, 1 = use SHA384
+ *
+ * \return         0 if successful, or POLARSSL_ERR_SHA512_FILE_IO_ERROR
+ */
+int sha512_file( const char *path, unsigned char output[64], int is384 );
+
+/**
+ * \brief          SHA-512 HMAC context setup
+ *
+ * \param ctx      HMAC context to be initialized
+ * \param is384    0 = use SHA512, 1 = use SHA384
+ * \param key      HMAC secret key
+ * \param keylen   length of the HMAC key
+ */
+void sha512_hmac_starts( sha512_context *ctx, const unsigned char *key,
+                         size_t keylen, int is384 );
+
+/**
+ * \brief          SHA-512 HMAC process buffer
+ *
+ * \param ctx      HMAC context
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ */
+void sha512_hmac_update( sha512_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief          SHA-512 HMAC final digest
+ *
+ * \param ctx      HMAC context
+ * \param output   SHA-384/512 HMAC checksum result
+ */
+void sha512_hmac_finish( sha512_context *ctx, unsigned char output[64] );
+
+/**
+ * \brief          SHA-512 HMAC context reset
+ *
+ * \param ctx      HMAC context to be reset
+ */
+void sha512_hmac_reset( sha512_context *ctx );
+
+/**
+ * \brief          Output = HMAC-SHA-512( hmac key, input buffer )
+ *
+ * \param key      HMAC secret key
+ * \param keylen   length of the HMAC key
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   HMAC-SHA-384/512 result
+ * \param is384    0 = use SHA512, 1 = use SHA384
+ */
+void sha512_hmac( const unsigned char *key, size_t keylen,
+                const unsigned char *input, size_t ilen,
+                unsigned char output[64], int is384 );
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int sha512_self_test( int verbose );
+
+/* Internal use */
+void sha512_process( sha512_context *ctx, const unsigned char data[128] );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* sha512.h */