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diff --git a/polarssl/src/include/polarssl/md2.h b/polarssl/src/include/polarssl/md2.h
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+/**
+ * \file md2.h
+ *
+ * \brief MD2 message digest algorithm (hash function)
+ *
+ *  Copyright (C) 2006-2010, 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_MD2_H
+#define POLARSSL_MD2_H
+
+#include <string.h>
+
+#define POLARSSL_ERR_MD2_FILE_IO_ERROR                 -0x0070  /**< Read/write error in file. */
+
+/**
+ * \brief          MD2 context structure
+ */
+typedef struct
+{
+    unsigned char cksum[16];    /*!< checksum of the data block */
+    unsigned char state[48];    /*!< intermediate digest state  */
+    unsigned char buffer[16];   /*!< data block being processed */
+
+    unsigned char ipad[16];     /*!< HMAC: inner padding        */
+    unsigned char opad[16];     /*!< HMAC: outer padding        */
+    size_t left;                /*!< amount of data in buffer   */
+}
+md2_context;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          MD2 context setup
+ *
+ * \param ctx      context to be initialized
+ */
+void md2_starts( md2_context *ctx );
+
+/**
+ * \brief          MD2 process buffer
+ *
+ * \param ctx      MD2 context
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ */
+void md2_update( md2_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief          MD2 final digest
+ *
+ * \param ctx      MD2 context
+ * \param output   MD2 checksum result
+ */
+void md2_finish( md2_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief          Output = MD2( input buffer )
+ *
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   MD2 checksum result
+ */
+void md2( const unsigned char *input, size_t ilen, unsigned char output[16] );
+
+/**
+ * \brief          Output = MD2( file contents )
+ *
+ * \param path     input file name
+ * \param output   MD2 checksum result
+ *
+ * \return         0 if successful, or POLARSSL_ERR_MD2_FILE_IO_ERROR
+ */
+int md2_file( const char *path, unsigned char output[16] );
+
+/**
+ * \brief          MD2 HMAC context setup
+ *
+ * \param ctx      HMAC context to be initialized
+ * \param key      HMAC secret key
+ * \param keylen   length of the HMAC key
+ */
+void md2_hmac_starts( md2_context *ctx, const unsigned char *key, size_t keylen );
+
+/**
+ * \brief          MD2 HMAC process buffer
+ *
+ * \param ctx      HMAC context
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ */
+void md2_hmac_update( md2_context *ctx, const unsigned char *input, size_t ilen );
+
+/**
+ * \brief          MD2 HMAC final digest
+ *
+ * \param ctx      HMAC context
+ * \param output   MD2 HMAC checksum result
+ */
+void md2_hmac_finish( md2_context *ctx, unsigned char output[16] );
+
+/**
+ * \brief          MD2 HMAC context reset
+ *
+ * \param ctx      HMAC context to be reset
+ */
+void md2_hmac_reset( md2_context *ctx );
+
+/**
+ * \brief          Output = HMAC-MD2( 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-MD2 result
+ */
+void md2_hmac( const unsigned char *key, size_t keylen,
+               const unsigned char *input, size_t ilen,
+               unsigned char output[16] );
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int md2_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* md2.h */