From 9247ce1bb90c44d19a0069fadb12c0c480ac9b4f Mon Sep 17 00:00:00 2001
From: lealem47 <60322859+lealem47@users.noreply.github.com>
Date: Sun, 12 Nov 2023 16:51:31 -0700
Subject: wolfCrypt as crypto backend for VeraCrypt (#1227)

* wolfCrypt as crypto backend for VeraCrypt

* Refactor to use EncryptionModeWolfCryptXTS class
---
 src/Common/Xts.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/Common/Xts.c')

diff --git a/src/Common/Xts.c b/src/Common/Xts.c
index 390eb31e..4a62aaf3 100644
--- a/src/Common/Xts.c
+++ b/src/Common/Xts.c
@@ -54,10 +54,14 @@ void EncryptBufferXTS (unsigned __int8 *buffer,
 					   unsigned __int8 *ks2,
 					   int cipher)
 {
-	if (CipherSupportsIntraDataUnitParallelization (cipher))
+    #ifndef WOLFCRYPT_BACKEND
+        if (CipherSupportsIntraDataUnitParallelization (cipher))
 		EncryptBufferXTSParallel (buffer, length, startDataUnitNo, startCipherBlockNo, ks, ks2, cipher);
 	else
 		EncryptBufferXTSNonParallel (buffer, length, startDataUnitNo, startCipherBlockNo, ks, ks2, cipher);
+    #else
+        xts_encrypt(buffer, buffer, length, startDataUnitNo, ks);
+    #endif
 }
 
 #if (CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && CRYPTOPP_BOOL_X64)
@@ -380,10 +384,14 @@ void DecryptBufferXTS (unsigned __int8 *buffer,
 					   unsigned __int8 *ks2,
 					   int cipher)
 {
+    #ifndef WOLFCRYPT_BACKEND
 	if (CipherSupportsIntraDataUnitParallelization (cipher))
 		DecryptBufferXTSParallel (buffer, length, startDataUnitNo, startCipherBlockNo, ks, ks2, cipher);
 	else
 		DecryptBufferXTSNonParallel (buffer, length, startDataUnitNo, startCipherBlockNo, ks, ks2, cipher);
+    #else
+        xts_decrypt(buffer, buffer, length, startDataUnitNo, ks);
+    #endif
 }
 
 
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