1 files changed, 49 insertions, 0 deletions
diff --git a/crypto/secure_hash_default.cc b/crypto/secure_hash_default.cc
new file mode 100644
index 0000000..b24221b
--- /dev/null
+++ b/crypto/secure_hash_default.cc
@@ -0,0 +1,49 @@
+// 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 "crypto/secure_hash.h"
+
+#include "base/logging.h"
+#include "crypto/third_party/nss/blapi.h"
+#include "crypto/third_party/nss/sha256.h"
+
+namespace crypto {
+
+namespace {
+
+class SecureHashSHA256NSS : public SecureHash {
+ public:
+  SecureHashSHA256NSS() {
+    SHA256_Begin(&ctx_);
+  }
+
+  virtual ~SecureHashSHA256NSS() {
+  }
+
+  virtual void Update(const void* input, size_t len) {
+    SHA256_Update(&ctx_, static_cast<const unsigned char*>(input), len);
+  }
+
+  virtual void Finish(void* output, size_t len) {
+    SHA256_End(&ctx_, static_cast<unsigned char*>(output), NULL,
+               static_cast<unsigned int>(len));
+  }
+
+ private:
+  SHA256Context ctx_;
+};
+
+}  // namespace
+
+SecureHash* SecureHash::Create(Algorithm algorithm) {
+  switch (algorithm) {
+    case SHA256:
+      return new SecureHashSHA256NSS();
+    default:
+      NOTIMPLEMENTED();
+      return NULL;
+  }
+}
+
+}  // namespace crypto