87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
|
// Copyright (c) 2013 Google Inc. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
#ifndef MEDIA_BASE_REQUEST_SIGNER_H_
|
||
|
|
#define MEDIA_BASE_REQUEST_SIGNER_H_
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
|
||
|
|
#include "base/basictypes.h"
|
||
|
|
#include "base/memory/scoped_ptr.h"
|
||
|
|
|
||
|
|
namespace media {
|
||
|
|
|
||
|
|
class AesCbcEncryptor;
|
||
|
|
class RsaPrivateKey;
|
||
|
|
|
||
|
|
// Define an abstract signer class for signature generation.
|
||
|
|
class RequestSigner {
|
||
|
|
public:
|
||
|
|
virtual ~RequestSigner();
|
||
|
|
|
||
|
|
// Generate signature for |message|. |signature| should not be NULL.
|
||
|
|
// Return true on success.
|
||
|
|
virtual bool GenerateSignature(const std::string& message,
|
||
|
|
std::string* signature) = 0;
|
||
|
|
|
||
|
|
const std::string& signer_name() const { return signer_name_; }
|
||
|
|
|
||
|
|
protected:
|
||
|
|
explicit RequestSigner(const std::string& signer_name);
|
||
|
|
|
||
|
|
private:
|
||
|
|
std::string signer_name_;
|
||
|
|
|
||
|
|
DISALLOW_COPY_AND_ASSIGN(RequestSigner);
|
||
|
|
};
|
||
|
|
|
||
|
|
// AesRequestSigner uses AES-CBC signing.
|
||
|
|
class AesRequestSigner : public RequestSigner {
|
||
|
|
public:
|
||
|
|
virtual ~AesRequestSigner();
|
||
|
|
|
||
|
|
// Create an AesSigner object from key and iv in hex.
|
||
|
|
// Return NULL on failure.
|
||
|
|
static AesRequestSigner* CreateSigner(const std::string& signer_name,
|
||
|
|
const std::string& aes_key_hex,
|
||
|
|
const std::string& iv_hex);
|
||
|
|
|
||
|
|
virtual bool GenerateSignature(const std::string& message,
|
||
|
|
std::string* signature) OVERRIDE;
|
||
|
|
|
||
|
|
private:
|
||
|
|
AesRequestSigner(const std::string& signer_name,
|
||
|
|
scoped_ptr<AesCbcEncryptor> encryptor);
|
||
|
|
|
||
|
|
scoped_ptr<AesCbcEncryptor> aes_cbc_encryptor_;
|
||
|
|
|
||
|
|
DISALLOW_COPY_AND_ASSIGN(AesRequestSigner);
|
||
|
|
};
|
||
|
|
|
||
|
|
// RsaRequestSigner uses RSA-PSS signing.
|
||
|
|
class RsaRequestSigner : public RequestSigner {
|
||
|
|
public:
|
||
|
|
virtual ~RsaRequestSigner();
|
||
|
|
|
||
|
|
// Create an RsaSigner object using a DER encoded PKCS#1 RSAPrivateKey.
|
||
|
|
// Return NULL on failure.
|
||
|
|
static RsaRequestSigner* CreateSigner(const std::string& signer_name,
|
||
|
|
const std::string& pkcs1_rsa_key);
|
||
|
|
|
||
|
|
virtual bool GenerateSignature(const std::string& message,
|
||
|
|
std::string* signature) OVERRIDE;
|
||
|
|
|
||
|
|
private:
|
||
|
|
RsaRequestSigner(const std::string& signer_name,
|
||
|
|
scoped_ptr<RsaPrivateKey> rsa_private_key);
|
||
|
|
|
||
|
|
scoped_ptr<RsaPrivateKey> rsa_private_key_;
|
||
|
|
|
||
|
|
DISALLOW_COPY_AND_ASSIGN(RsaRequestSigner);
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace media
|
||
|
|
|
||
|
|
#endif // MEDIA_BASE_REQUEST_SIGNER_H_
|