xref: /external/chromium_org/chrome/common/extensions/api/networking_private/networking_private_crypto.h

// Copyright 2014 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 CHROME_COMMON_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_CRYPTO_H_
#define CHROME_COMMON_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_CRYPTO_H_

#include <stdint.h>

#include <string>
#include <vector>

#include "base/basictypes.h"

namespace networking_private_crypto {

// Verify that the credentials described by |certificate| and |signed_data|
// are valid as follows:
// 1) The MAC address listed in the certificate matches |connected_mac|.
// 2) The certificate is a valid PEM encoded certificate signed by trusted CA.
// 3) |signature| is a valid signature for |data|, using the public key in
// |certificate|
bool VerifyCredentials(const std::string& certificate,
                       const std::string& signature,
                       const std::string& data,
                       const std::string& connected_mac);

// Encrypt |data| with |public_key|. |public_key| is a DER-encoded
// RSAPublicKey. |data| is some string of bytes that is smaller than the
// maximum length permissible for PKCS#1 v1.5 with a key of |public_key| size.
//
// Returns true on success, storing the encrypted result in
// |encrypted_output|.
bool EncryptByteString(const std::vector<uint8_t>& public_key,
                       const std::string& data,
                       std::vector<uint8_t>* encrypted_output);

// Decrypt |encrypted_data| with |private_key_pem|. |private_key_pem| is the
// PKCS8 PEM-encoded private key. |encrypted_data| is data encrypted with
// EncryptByteString. Used in NetworkingPrivateCryptoTest::EncryptString test.
// Returns true on success, storing the decrypted result in
// |decrypted_output|.
bool DecryptByteString(const std::string& private_key_pem,
                       const std::vector<uint8_t>& encrypted_data,
                       std::string* decrypted_output);

// The trusted public key as a DER-encoded PKCS#1 RSAPublicKey structure.
extern const uint8_t kTrustedCAPublicKeyDER[];

// The length of |kTrustedCAPublicKeyDER| in bytes.
extern const size_t kTrustedCAPublicKeyDERLength;

}  // namespace networking_private_crypto

#endif  // CHROME_COMMON_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_CRYPTO_H_