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authorParménides GV <parmegv@sdf.org>2014-06-13 13:24:13 +0200
committerParménides GV <parmegv@sdf.org>2014-06-13 13:24:13 +0200
commit69b10487fcd63dfe1e94fa97c9f3fd9b035646b4 (patch)
treed4960893a4444634d404c7fbe4fa3e8778d30179 /app/openssl/crypto/modes/cbc128.c
parent9f6cfff38ae87922adc022300e1e2fd1c0d4c3e4 (diff)
parente45929e220fe49e30235a1d4d36c1a413547f8bf (diff)
Merge branch 'develop'
Diffstat (limited to 'app/openssl/crypto/modes/cbc128.c')
-rw-r--r--app/openssl/crypto/modes/cbc128.c35
1 files changed, 17 insertions, 18 deletions
diff --git a/app/openssl/crypto/modes/cbc128.c b/app/openssl/crypto/modes/cbc128.c
index 8f8bd563..0e54f754 100644
--- a/app/openssl/crypto/modes/cbc128.c
+++ b/app/openssl/crypto/modes/cbc128.c
@@ -48,7 +48,8 @@
*
*/
-#include "modes.h"
+#include <openssl/crypto.h>
+#include "modes_lcl.h"
#include <string.h>
#ifndef MODES_DEBUG
@@ -58,12 +59,7 @@
#endif
#include <assert.h>
-#define STRICT_ALIGNMENT 1
-#if defined(__i386) || defined(__i386__) || \
- defined(__x86_64) || defined(__x86_64__) || \
- defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \
- defined(__s390__) || defined(__s390x__)
-# undef STRICT_ALIGNMENT
+#ifndef STRICT_ALIGNMENT
# define STRICT_ALIGNMENT 0
#endif
@@ -121,7 +117,7 @@ void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out,
unsigned char ivec[16], block128_f block)
{
size_t n;
- union { size_t align; unsigned char c[16]; } tmp;
+ union { size_t t[16/sizeof(size_t)]; unsigned char c[16]; } tmp;
assert(in && out && key && ivec);
@@ -141,11 +137,13 @@ void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out,
out += 16;
}
}
- else {
+ else if (16%sizeof(size_t) == 0) { /* always true */
while (len>=16) {
+ size_t *out_t=(size_t *)out, *iv_t=(size_t *)iv;
+
(*block)(in, out, key);
- for(n=0; n<16; n+=sizeof(size_t))
- *(size_t *)(out+n) ^= *(size_t *)(iv+n);
+ for(n=0; n<16/sizeof(size_t); n++)
+ out_t[n] ^= iv_t[n];
iv = in;
len -= 16;
in += 16;
@@ -169,15 +167,16 @@ void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out,
out += 16;
}
}
- else {
- size_t c;
+ else if (16%sizeof(size_t) == 0) { /* always true */
while (len>=16) {
+ size_t c, *out_t=(size_t *)out, *ivec_t=(size_t *)ivec;
+ const size_t *in_t=(const size_t *)in;
+
(*block)(in, tmp.c, key);
- for(n=0; n<16; n+=sizeof(size_t)) {
- c = *(size_t *)(in+n);
- *(size_t *)(out+n) =
- *(size_t *)(tmp.c+n) ^ *(size_t *)(ivec+n);
- *(size_t *)(ivec+n) = c;
+ for(n=0; n<16/sizeof(size_t); n++) {
+ c = in_t[n];
+ out_t[n] = tmp.t[n] ^ ivec_t[n];
+ ivec_t[n] = c;
}
len -= 16;
in += 16;