Private API for extensions like ssh-client that need access to TCP.

base/crypto/symmetric_key_nss.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/crypto/symmetric_key.h"
 
 #include <nss.h>
 #include <pk11pub.h>
 
 #include "base/nss_util.h"
 #include "base/logging.h"
 
 namespace base {
 
 SymmetricKey::~SymmetricKey() {}
 
 // static
+bool SymmetricKey::GenerateRandomBytes(size_t num_bytes, uint8* out) {
+  return num_bytes == 0 ||
+      (out == NULL && PK11_GenerateRandom(out, num_bytes) == SECSuccess);
+}
+
+// static
 SymmetricKey* SymmetricKey::GenerateRandomKey(Algorithm algorithm,
                                               size_t key_size_in_bits) {
   DCHECK_EQ(AES, algorithm);
 
   EnsureNSSInit();
   if (key_size_in_bits == 0)
     return NULL;
 
   ScopedPK11Slot slot(PK11_GetBestSlot(CKM_AES_KEY_GEN, NULL));
   if (!slot.get())
@@ skipping 90 matching lines @@
 
   raw_key->assign(reinterpret_cast<char*>(key_item->data), key_item->len);
   return true;
 }
 
 SymmetricKey::SymmetricKey(PK11SymKey* key) : key_(key) {
   DCHECK(key);
 }
 
 }  // namespace base