2011-02-10  Adam Barth  <abarth@webkit.org>

        Reviewed by Eric Seidel.

        WebKit should have a cryptographic RNG
        https://bugs.webkit.org/show_bug.cgi?id=22049

        Test crypto.getRandomValues API.  It's pretty hard to write a
        deterministic API for a randomized API, but this test should catch some
        regressions.

        * security/crypto-random-values-expected.txt: Added.
        * security/crypto-random-values.html: Added.
2011-02-10  Adam Barth  <abarth@webkit.org>

        Reviewed by Eric Seidel.

        WebKit should have a cryptographic RNG
        https://bugs.webkit.org/show_bug.cgi?id=22049

        Teach JavaScriptCore how to export this function.

        * JavaScriptCore.exp:
        * JavaScriptCore.xcodeproj/project.pbxproj:
2011-02-10  Adam Barth  <abarth@webkit.org>

        Reviewed by Eric Seidel.

        WebKit should have a cryptographic RNG
        https://bugs.webkit.org/show_bug.cgi?id=22049

        Add crypto.getRandomValues.  Yes, all these diffs are required to
        expose a single function to the DOM.

        Test: security/crypto-random-values.html

        * Android.mk:
        * CMakeLists.txt:
        * DerivedSources.cpp:
        * DerivedSources.make:
        * ForwardingHeaders/wtf/CryptographicallyRandomNumber.h: Added.
        * GNUmakefile.am:
        * WebCore.gypi:
        * WebCore.pri:
        * WebCore.pro:
        * WebCore.vcproj/WebCore.vcproj:
        * WebCore.xcodeproj/project.pbxproj:
        * bindings/js/JSDOMWindowCustom.cpp:
        * bindings/v8/custom/V8DOMWindowCustom.cpp:
        * config.h:
        * page/Crypto.cpp: Added.
        (WebCore::Crypto::Crypto):
        (WebCore::Crypto::getRandomValues):
        * page/Crypto.h: Added.
        (WebCore::Crypto::create):
        * page/Crypto.idl: Added.
        * page/DOMWindow.cpp:
        (WebCore::DOMWindow::clear):
        (WebCore::DOMWindow::crypto):
        * page/DOMWindow.h:
        (WebCore::DOMWindow::optionalCrypto):
        * page/DOMWindow.idl:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@78321 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/WebCore/page/Crypto.cpp b/Source/WebCore/page/Crypto.cpp
new file mode 100644
index 0000000..0b1795e
--- /dev/null
+++ b/Source/WebCore/page/Crypto.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2011 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Google, Inc. ("Google") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY GOOGLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#include "config.h"
+#include "Crypto.h"
+
+#include "ExceptionCode.h"
+#include "Uint8Array.h"
+#include <wtf/CryptographicallyRandomNumber.h>
+
+
+namespace WebCore {
+
+Crypto::Crypto()
+{
+}
+
+void Crypto::getRandomValues(ArrayBufferView* array, ExceptionCode& ec)
+{
+#if USE(OS_RANDOMNESS)
+    if (!array || !array->isUnsignedByteArray()) {
+        ec = VALIDATION_ERR;
+        return;
+    }
+    cryptographicallyRandomValues(array->baseAddress(), array->byteLength());
+#else
+    ASSERT_UNUSED(array, array);
+    ec = NOT_SUPPORTED_ERR;
+#endif
+}
+
+}