Changeset 94082 in vbox for trunk/src/libs/openssl-3.0.1/include/internal/constant_time.h

Timestamp:

Mar 3, 2022 7:17:34 PM (3 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

150325

Message:

libs/openssl-3.0.1: started applying and adjusting our OpenSSL changes to 3.0.1. bugref:10128

Location:

trunk/src/libs/openssl-3.0.1

Files:

• . (modified) (1 prop)
• include/internal/constant_time.h (modified) (4 diffs)

trunk/src/libs/openssl-3.0.1

@@ -12 +12 @@
 /vendor/openssl/1.1.1c:131722-131725
 /vendor/openssl/1.1.1k:145841-145843
+/vendor/openssl/3.0.1:150323-150324
+/vendor/openssl/current:147554-150322

@@ -12 +12 @@
 /vendor/openssl/1.1.1c:131722-131725
 /vendor/openssl/1.1.1k:145841-145843
+/vendor/openssl/3.0.1:150323-150324
+/vendor/openssl/current:147554-150322

trunk/src/libs/openssl-3.0.1/include/internal/constant_time.h

@@ -1 +1 @@
 /*
- * Copyright 2014-2019 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Copyright 2014-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
@@ -10 +10 @@
 #ifndef OSSL_INTERNAL_CONSTANT_TIME_H
 # define OSSL_INTERNAL_CONSTANT_TIME_H
+# pragma once
 
 # include <stdlib.h>
@@ -182 +183 @@
 }
 
+static ossl_inline uint64_t constant_time_is_zero_64(uint64_t a)
+{
+    return constant_time_msb_64(~a & (a - 1));
+}
+
 static ossl_inline unsigned int constant_time_eq(unsigned int a,
                                                  unsigned int b)
@@ -354 +360 @@
 
 /*
+ * mask must be 0xFF or 0x00.
+ * "constant time" is per len.
+ *
+ * if (mask) {
+ *     unsigned char tmp[len];
+ *
+ *     memcpy(tmp, a, len);
+ *     memcpy(a, b);
+ *     memcpy(b, tmp);
+ * }
+ */
+static ossl_inline void constant_time_cond_swap_buff(unsigned char mask,
+                                                     unsigned char *a,
+                                                     unsigned char *b,
+                                                     size_t len)
+{
+    size_t i;
+    unsigned char tmp;
+
+    for (i = 0; i < len; i++) {
+        tmp = a[i] ^ b[i];
+        tmp &= mask;
+        a[i] ^= tmp;
+        b[i] ^= tmp;
+    }
+}
+
+/*
  * table is a two dimensional array of bytes. Each row has rowsize elements.
  * Copies row number idx into out. rowsize and numrows are not considered

@@ -12 +12 @@
 /vendor/openssl/1.1.1c:131722-131725
 /vendor/openssl/1.1.1k:145841-145843
+/vendor/openssl/3.0.1:150323-150324
+/vendor/openssl/current:147554-150322