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diff --git a/src/uscxml/util/SHA1.h b/src/uscxml/util/SHA1.h
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+/**
+ Copyright (C) 1998, 2009
+ Paul E. Jones <paulej@packetizer.com>
+
+ Freeware Public License (FPL)
+
+ This software is licensed as "freeware."  Permission to distribute
+ this software in source and binary forms, including incorporation 
+ into other products, is hereby granted without a fee.  THIS SOFTWARE 
+ IS PROVIDED 'AS IS' AND WITHOUT ANY EXPRESSED OR IMPLIED WARRANTIES, 
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
+ AND FITNESS FOR A PARTICULAR PURPOSE.  THE AUTHOR SHALL NOT BE HELD 
+ LIABLE FOR ANY DAMAGES RESULTING FROM THE USE OF THIS SOFTWARE, EITHER 
+ DIRECTLY OR INDIRECTLY, INCLUDING, BUT NOT LIMITED TO, LOSS OF DATA 
+ OR DATA BEING RENDERED INACCURATE.
+*/
+
+/*
+ *  sha1.h
+ *
+ *  Copyright (C) 1998, 2009
+ *  Paul E. Jones <paulej@packetizer.com>
+ *  All Rights Reserved
+ *
+ *****************************************************************************
+ *  $Id: sha1.h 12 2009-06-22 19:34:25Z paulej $
+ *****************************************************************************
+ *
+ *  Description:
+ *      This class implements the Secure Hashing Standard as defined
+ *      in FIPS PUB 180-1 published April 17, 1995.
+ *
+ *      Many of the variable names in the SHA1Context, especially the
+ *      single character names, were used because those were the names
+ *      used in the publication.
+ *
+ *      Please read the file sha1.c for more information.
+ *
+ */
+
+#ifndef _SHA1_H_
+#define _SHA1_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* 
+ *  This structure will hold context information for the hashing
+ *  operation
+ */
+typedef struct SHA1Context
+{
+    unsigned Message_Digest[5]; /* Message Digest (output)          */
+
+    unsigned Length_Low;        /* Message length in bits           */
+    unsigned Length_High;       /* Message length in bits           */
+
+    unsigned char Message_Block[64]; /* 512-bit message blocks      */
+    int Message_Block_Index;    /* Index into message block array   */
+
+    int Computed;               /* Is the digest computed?          */
+    int Corrupted;              /* Is the message digest corruped?  */
+} SHA1Context;
+
+/*
+ *  Function Prototypes
+ */
+void SHA1Reset(SHA1Context *);
+int SHA1Result(SHA1Context *);
+void SHA1Input(SHA1Context *,
+               const unsigned char *,
+               unsigned);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif