From 263abeee3a8c97e98fec49ee0ce628d6c5c5df50 Mon Sep 17 00:00:00 2001
From: Mounir IDRASSI <mounir.idrassi@idrix.fr>
Date: Mon, 28 Nov 2016 00:29:36 +0100
Subject: Crypto: Add optimized Twofish assembly implementation for x86_64.

---
 src/Volume/Cipher.cpp | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'src/Volume/Cipher.cpp')

diff --git a/src/Volume/Cipher.cpp b/src/Volume/Cipher.cpp
index 09c821bb..be8cc3eb 100644
--- a/src/Volume/Cipher.cpp
+++ b/src/Volume/Cipher.cpp
@@ -296,6 +296,39 @@ namespace VeraCrypt
 		twofish_set_key ((TwofishInstance *) ScheduledKey.Ptr(), (unsigned int *) key);
 	}
 	
+	void CipherTwofish::EncryptBlocks (byte *data, size_t blockCount) const
+	{
+		if (!Initialized)
+			throw NotInitialized (SRC_POS);
+
+#if CRYPTOPP_BOOL_X64
+		twofish_encrypt_blocks ( (TwofishInstance *) ScheduledKey.Ptr(), data, data, blockCount);
+#else
+		Cipher::EncryptBlocks (data, blockCount);
+#endif
+	}
+	
+	void CipherTwofish::DecryptBlocks (byte *data, size_t blockCount) const
+	{
+		if (!Initialized)
+			throw NotInitialized (SRC_POS);
+
+#if CRYPTOPP_BOOL_X64
+		twofish_decrypt_blocks ( (TwofishInstance *) ScheduledKey.Ptr(), data, data, blockCount);
+#else
+		Cipher::DecryptBlocks (data, blockCount);
+#endif
+	}
+	
+	bool CipherTwofish::IsHwSupportAvailable () const
+	{
+#if CRYPTOPP_BOOL_X64
+		return true;
+#else
+		return false;
+#endif
+	}
+	
 	// Camellia
 	void CipherCamellia::Decrypt (byte *data) const
 	{
-- 
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