Move crypto files out of base, to a top level directory.

base/crypto/signature_creator.h

-// 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.
-
-#ifndef BASE_CRYPTO_SIGNATURE_CREATOR_H_
-#define BASE_CRYPTO_SIGNATURE_CREATOR_H_
-#pragma once
-
-#include "build/build_config.h"
-
-#if defined(USE_OPENSSL)
-// Forward declaration for openssl/*.h
-typedef struct env_md_ctx_st EVP_MD_CTX;
-#elif defined(USE_NSS)
-// Forward declaration.
-struct SGNContextStr;
-#elif defined(OS_MACOSX)
-#include <Security/cssm.h>
-#endif
-
-#include <vector>
-
-#include "base/base_api.h"
-#include "base/basictypes.h"
-#include "base/crypto/rsa_private_key.h"
-
-#if defined(OS_WIN)
-#include "base/crypto/scoped_capi_types.h"
-#endif
-
-namespace base {
-
-// Signs data using a bare private key (as opposed to a full certificate).
-// Currently can only sign data using SHA-1 with RSA encryption.
-class BASE_API SignatureCreator {
- public:
-  ~SignatureCreator();
-
-  // Create an instance. The caller must ensure that the provided PrivateKey
-  // instance outlives the created SignatureCreator.
-  static SignatureCreator* Create(RSAPrivateKey* key);
-
-  // Update the signature with more data.
-  bool Update(const uint8* data_part, int data_part_len);
-
-  // Finalize the signature.
-  bool Final(std::vector<uint8>* signature);
-
- private:
-  // Private constructor. Use the Create() method instead.
-  SignatureCreator();
-
-  RSAPrivateKey* key_;
-
-#if defined(USE_OPENSSL)
-  EVP_MD_CTX* sign_context_;
-#elif defined(USE_NSS)
-  SGNContextStr* sign_context_;
-#elif defined(OS_MACOSX)
-  CSSM_CC_HANDLE sig_handle_;
-#elif defined(OS_WIN)
-  ScopedHCRYPTHASH hash_object_;
-#endif
-
-  DISALLOW_COPY_AND_ASSIGN(SignatureCreator);
-};
-
-}  // namespace base
-
-#endif  // BASE_CRYPTO_SIGNATURE_CREATOR_H_