initial revision

1 files changed, 75 insertions, 0 deletions

diff --git a/pwmanager/pwmanager/sha1.h b/pwmanager/pwmanager/sha1.h
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+++ b/pwmanager/pwmanager/sha1.h
@@ -0,0 +1,75 @@
+/***************************************************************************
+ *                                                                         *
+ *   copyright (C) 2003 by Michael Buesch                                  *
+ *   email: mbuesch@freenet.de                                             *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License version 2        *
+ *   as published by the Free Software Foundation.                         *
+ *                                                                         *
+ ***************************************************************************/
+
+/***************************************************************************
+ * copyright (C) 2004 by Ulf Schenk
+ * This file is originaly based on version 1.0.1 of pwmanager
+ * and was modified to run on embedded devices that run microkde
+ *
+ * $Id$
+ **************************************************************************/  
+
+#ifndef SHA1_H
+#define SHA1_H
+
+#include <stdint.h>
+#include <string>
+using std::string;
+
+typedef uint8_t		byte;
+
+#define SHA1_HASH_LEN_BIT	160
+#define SHA1_HASH_LEN_BYTE	(SHA1_HASH_LEN_BIT / 8)
+
+/** sha1 hash algorithm.
+  * Derived from libgcrypt-1.1.12
+  */
+class Sha1
+{
+	struct SHA1_CONTEXT
+	{
+		uint32_t  h0,h1,h2,h3,h4;
+		uint32_t  nblocks;
+		byte buf[64];
+		int  count;
+	};
+
+public:
+	Sha1() { sha1_init(); }
+	static bool selfTest();
+
+	void sha1_write(const byte *inbuf, uint32_t inlen);
+	string sha1_read();
+
+protected:
+	void sha1_init();
+	void sha1_final();
+	void burn_stack (int bytes);
+	void transform(const byte *data);
+
+	/** Rotate a 32 bit integer by n bytes */
+	uint32_t rol(uint32_t x, int n)
+	{
+#if defined(__GNUC__) && defined(__i386__)
+		__asm__("roll %%cl,%0"
+			:"=r" (x)
+			:"0" (x),"c" (n));
+		return x;
+#else
+		return ((x) << (n)) | ((x) >> (32-(n)));
+#endif
+	}
+
+protected:
+	struct SHA1_CONTEXT ctx;
+};
+
+#endif