Added SHA-1, SHA-224, SHA-256, SHA-384 and SHA-512 support

src/Nazara/Core/Hash/SHA256.cpp

@@ -0,0 +1,47 @@
+// Copyright (C) 2012 Jérôme Leclercq
+// This file is part of the "Nazara Engine".
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Core/Hash/SHA256.hpp>
+#include <Nazara/Core/Hash/SHA/Internal.hpp>
+#include <Nazara/Core/Debug.hpp>
+
+NzHashSHA256::NzHashSHA256()
+{
+	m_state = new SHA_CTX;
+}
+
+NzHashSHA256::~NzHashSHA256()
+{
+	delete m_state;
+}
+
+void NzHashSHA256::Append(const nzUInt8* data, unsigned int len)
+{
+	SHA256_Update(m_state, data, len);
+}
+
+void NzHashSHA256::Begin()
+{
+	SHA256_Init(m_state);
+}
+
+NzHashDigest NzHashSHA256::End()
+{
+	nzUInt8 digest[SHA256_DIGEST_LENGTH];
+
+	SHA256_End(m_state, digest);
+
+	return NzHashDigest(GetHashName(), digest, SHA256_DIGEST_LENGTH);
+}
+
+unsigned int NzHashSHA256::GetDigestLength()
+{
+	return SHA256_DIGEST_LENGTH;
+}
+
+NzString NzHashSHA256::GetHashName()
+{
+	static NzString hashName = "SHA256";
+	return hashName;
+}