From 48540940b6c28bb4378abfeb500ec45a625b37b6 Mon Sep 17 00:00:00 2001
From: Vadim Dashevskiy <watcherhd@gmail.com>
Date: Tue, 15 May 2012 10:38:20 +0000
Subject: initial commit

git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
---
 plugins/CryptoPP/crypto/adler32.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 plugins/CryptoPP/crypto/adler32.h

(limited to 'plugins/CryptoPP/crypto/adler32.h')

diff --git a/plugins/CryptoPP/crypto/adler32.h b/plugins/CryptoPP/crypto/adler32.h
new file mode 100644
index 0000000000..672b3edd18
--- /dev/null
+++ b/plugins/CryptoPP/crypto/adler32.h
@@ -0,0 +1,27 @@
+#ifndef CRYPTOPP_ADLER32_H
+#define CRYPTOPP_ADLER32_H
+
+#include "cryptlib.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! ADLER-32 checksum calculations 
+class Adler32 : public HashTransformation
+{
+public:
+	CRYPTOPP_CONSTANT(DIGESTSIZE = 4)
+	Adler32() {Reset();}
+	void Update(const byte *input, size_t length);
+	void TruncatedFinal(byte *hash, size_t size);
+	unsigned int DigestSize() const {return DIGESTSIZE;}
+    std::string AlgorithmName() const {return "Adler32";}
+
+private:
+	void Reset() {m_s1 = 1; m_s2 = 0;}
+
+	word16 m_s1, m_s2;
+};
+
+NAMESPACE_END
+
+#endif
-- 
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