From: Andy Polyakov <appro@openssl.org>
Date: Sat, 23 Apr 2011 09:15:03 +0000 (+0000)
Subject: xts128.c: fix bug introduced in commit#20704. Bug affected encryption of
X-Git-Tag: OpenSSL-fips-2_0-rc1~511
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9e5fe439b4e8fb4198f241f2ba16a029a480d5f5;p=openssl

xts128.c: fix bug introduced in commit#20704. Bug affected encryption of
vectors whose lenght was not multiples of 16 bytes.
---

diff --git a/crypto/modes/xts128.c b/crypto/modes/xts128.c
index ebdc5ea649..e7f1641070 100644
--- a/crypto/modes/xts128.c
+++ b/crypto/modes/xts128.c
@@ -89,8 +89,8 @@ int CRYPTO_xts128_encrypt(const XTS128_CONTEXT *ctx, const unsigned char iv[16],
 		scratch.u[1] ^= tweak.u[1];
 		memcpy(out,scratch.c,16);
 #else
-		((u64*)out)[0] = scratch.u[0]^tweak.u[0];
-		((u64*)out)[1] = scratch.u[1]^tweak.u[1];
+		((u64*)out)[0] = scratch.u[0]^=tweak.u[0];
+		((u64*)out)[1] = scratch.u[1]^=tweak.u[1];
 #endif
 		inp += 16;
 		out += 16;