Index: content/renderer/webcrypto_impl_nss.cc |
diff --git a/content/renderer/webcrypto_impl_nss.cc b/content/renderer/webcrypto_impl_nss.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c584e5f813c8ddcb48937127d4fb95e72f939ae8 |
--- /dev/null |
+++ b/content/renderer/webcrypto_impl_nss.cc |
@@ -0,0 +1,76 @@ |
+// Copyright (c) 2013 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 "content/renderer/webcrypto_impl.h" |
+ |
+#include <sechash.h> |
+ |
+#include "base/logging.h" |
+#include "crypto/nss_util.h" |
+#include "third_party/WebKit/public/platform/WebArrayBuffer.h" |
+#include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h" |
+ |
+namespace content { |
+ |
+void WebCryptoImpl::digest( |
+ const WebKit::WebCryptoAlgorithm& algorithm, |
+ const unsigned char* data, |
+ size_t data_size, |
+ WebKit::WebCryptoResult result) { |
+ HASH_HashType hash_type = HASH_AlgNULL; |
+ |
+ switch (algorithm.id()) { |
+ case WebKit::WebCryptoAlgorithmIdSha1: |
+ hash_type = HASH_AlgSHA1; |
+ break; |
+ case WebKit::WebCryptoAlgorithmIdSha224: |
+ hash_type = HASH_AlgSHA224; |
+ break; |
+ case WebKit::WebCryptoAlgorithmIdSha256: |
+ hash_type = HASH_AlgSHA256; |
+ break; |
+ case WebKit::WebCryptoAlgorithmIdSha384: |
+ hash_type = HASH_AlgSHA384; |
+ break; |
+ case WebKit::WebCryptoAlgorithmIdSha512: |
+ hash_type = HASH_AlgSHA512; |
+ break; |
+ default: |
+ // Not a digest algorithm. |
+ result.completeWithError(); |
+ return; |
+ } |
+ |
+ crypto::EnsureNSSInit(); |
+ |
+ HASHContext* context = HASH_Create(hash_type); |
+ if (!context) { |
+ result.completeWithError(); |
+ return; |
+ } |
+ |
+ HASH_Begin(context); |
+ |
+ HASH_Update(context, data, data_size); |
+ |
+ size_t hash_result_length = HASH_ResultLenContext(context); |
+ DCHECK(hash_result_length <= HASH_LENGTH_MAX); |
jamesr
2013/08/23 01:27:40
DCHECK_LE()
Bryan Eyler
2013/08/23 17:45:31
Done.
|
+ |
+ WebKit::WebArrayBuffer buffer( |
+ WebKit::WebArrayBuffer::create(hash_result_length, 1)); |
+ |
+ unsigned char* digest = reinterpret_cast<unsigned char*>(buffer.data()); |
+ |
+ uint32 result_length = 0; |
+ HASH_End(context, digest, &result_length, hash_result_length); |
+ if (result_length != hash_result_length) { |
+ result.completeWithError(); |
+ } else { |
+ result.completeWithBuffer(buffer); |
+ } |
+ |
+ HASH_Destroy(context); |
+} |
+ |
+} // namespace content |