crypto/aes/asm/aes-s390x.pl: replace decrypt flag by macro.

[openssl.git] / crypto / aes / aes_x86core.c

diff --git a/crypto/aes/aes_x86core.c b/crypto/aes/aes_x86core.c
index dd7e905470f02006533ebfc31eca2a24c875e77a..1b660d716d6c18baa13b5f7a2d114b95d583ce26 100644 (file)
--- a/crypto/aes/aes_x86core.c
+++ b/crypto/aes/aes_x86core.c
@@ -7,6 +7,14 @@
  * https://www.openssl.org/source/license.html
  */
 
+/*
+ * This is experimental x86[_64] derivative. It assumes little-endian
+ * byte order and expects CPU to sustain unaligned memory references.
+ * It is used as playground for cache-time attack mitigations and
+ * serves as reference C implementation for x86[_64] as well as some
+ * other assembly modules.
+ */
+
 /**
  * rijndael-alg-fst.c
  *
@@ -14,9 +22,9 @@
  *
  * Optimised ANSI C code for the Rijndael cipher (now AES)
  *
- * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
- * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
- * @author Paulo Barreto <paulo.barreto@terra.com.br>
+ * @author Vincent Rijmen
+ * @author Antoon Bosselaers
+ * @author Paulo Barreto
  *
  * This code is hereby placed in the public domain.
  *
@@ -33,15 +41,6 @@
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-/*
- * This is experimental x86[_64] derivative. It assumes little-endian
- * byte order and expects CPU to sustain unaligned memory references.
- * It is used as playground for cache-time attack mitigations and
- * serves as reference C implementation for x86[_64] assembler.
- *
- *                  <appro@fy.chalmers.se>
- */
-
 
 #include <assert.h>
 
@@ -621,7 +620,7 @@ int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
             rk[j] = tpe ^ ROTATE(tpd,16) ^
                 ROTATE(tp9,8) ^ ROTATE(tpb,24);
 #else
-            rk[j] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ 
+            rk[j] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^
                 (tp9 >> 24) ^ (tp9 << 8) ^
                 (tpb >> 8) ^ (tpb << 24);
 #endif
@@ -910,7 +909,7 @@ void AES_decrypt(const unsigned char *in, unsigned char *out,
            (u32)Td4[(s1 >> 16) & 0xff] << 16 ^
            (u32)Td4[(s0 >> 24)       ] << 24;
 
-    /* now do the linear transform using words */ 
+    /* now do the linear transform using words */
     {
         int i;
         u32 tp1, tp2, tp4, tp8, tp9, tpb, tpd, tpe, m;
@@ -934,7 +933,7 @@ void AES_decrypt(const unsigned char *in, unsigned char *out,
             t[i] = tpe ^ ROTATE(tpd,16) ^
                 ROTATE(tp9,8) ^ ROTATE(tpb,24);
 #else
-            t[i] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ 
+            t[i] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^
                 (tp9 >> 24) ^ (tp9 << 8) ^
                 (tpb >> 8) ^ (tpb << 24);
 #endif
@@ -987,7 +986,7 @@ void AES_decrypt(const unsigned char *in, unsigned char *out,
                (u32)Td4[(s1 >> 16) & 0xff] << 16 ^
                (u32)Td4[(s0 >> 24)       ] << 24;
 
-    /* now do the linear transform using words */ 
+    /* now do the linear transform using words */
     {
         int i;
         u32 tp1, tp2, tp4, tp8, tp9, tpb, tpd, tpe, m;
@@ -1011,7 +1010,7 @@ void AES_decrypt(const unsigned char *in, unsigned char *out,
             t[i] = tpe ^ ROTATE(tpd,16) ^
                 ROTATE(tp9,8) ^ ROTATE(tpb,24);
 #else
-            t[i] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^ 
+            t[i] = tpe ^ (tpd >> 16) ^ (tpd << 16) ^
                 (tp9 >> 24) ^ (tp9 << 8) ^
                 (tpb >> 8) ^ (tpb << 24);
 #endif