X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Faes%2Faes_ctr.c;h=2487d83fb15cfd50e24c235306875da9e05c9ec3;hb=33c3ecf741942be48faf701edc7893857d276b75;hp=5a1ced67f85fb91fefe91421601e352aee69bf7b;hpb=da0d33560f78b7c430a20981f2cf125d56926899;p=oweals%2Fopenssl.git

diff --git a/crypto/aes/aes_ctr.c b/crypto/aes/aes_ctr.c
index 5a1ced67f8..2487d83fb1 100644
--- a/crypto/aes/aes_ctr.c
+++ b/crypto/aes/aes_ctr.c
@@ -59,7 +59,7 @@
 #include <openssl/aes.h>
 #include "aes_locl.h"
 
-/* NOTE: CTR mode is big-endian.  The rest of the AES code
+/* NOTE: the IV/counter CTR mode is big-endian.  The rest of the AES code
  * is endian-neutral. */
 
 /* increment counter (128-bit int) by 1 */
@@ -67,61 +67,36 @@ static void AES_ctr128_inc(unsigned char *counter) {
 	unsigned long c;
 
 	/* Grab bottom dword of counter and increment */
-#ifdef L_ENDIAN
-	c = GETU32(counter +  0);
-	c++;
-	PUTU32(counter +  0, c);
-#else
 	c = GETU32(counter + 12);
 	c++;
 	PUTU32(counter + 12, c);
-#endif
 
 	/* if no overflow, we're done */
 	if (c)
 		return;
 
 	/* Grab 1st dword of counter and increment */
-#ifdef L_ENDIAN
-	c = GETU32(counter +  4);
-	c++;
-	PUTU32(counter +  4, c);
-#else
 	c = GETU32(counter +  8);
 	c++;
 	PUTU32(counter +  8, c);
-#endif
 
 	/* if no overflow, we're done */
 	if (c)
 		return;
 
 	/* Grab 2nd dword of counter and increment */
-#ifdef L_ENDIAN
-	c = GETU32(counter +  8);
-	c++;
-	PUTU32(counter +  8, c);
-#else
 	c = GETU32(counter +  4);
 	c++;
 	PUTU32(counter +  4, c);
-#endif
 
 	/* if no overflow, we're done */
 	if (c)
 		return;
 
 	/* Grab top dword of counter and increment */
-#ifdef L_ENDIAN
-	c = GETU32(counter + 12);
-	c++;
-	PUTU32(counter + 12, c);
-#else
 	c = GETU32(counter +  0);
 	c++;
 	PUTU32(counter +  0, c);
-#endif
-
 }
 
 /* The input encrypted as though 128bit counter mode is being
@@ -153,8 +128,8 @@ void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
 
 	while (l--) {
 		if (n == 0) {
-			AES_encrypt(counter, ecount_buf, key);
-			AES_ctr128_inc(counter);
+			AES_encrypt(ivec, ecount_buf, key);
+ 			AES_ctr128_inc(ivec);
 		}
 		*(out++) = *(in++) ^ ecount_buf[n];
 		n = (n+1) % AES_BLOCK_SIZE;