| // Copyright (c) 2012 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 CRYPTO_RSA_PRIVATE_KEY_H_ |
| #define CRYPTO_RSA_PRIVATE_KEY_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <list> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "build/build_config.h" |
| #include "crypto/crypto_export.h" |
| |
| #if defined(USE_OPENSSL) |
| // Forward declaration for openssl/*.h |
| typedef struct evp_pkey_st EVP_PKEY; |
| #else |
| // Forward declaration. |
| typedef struct PK11SlotInfoStr PK11SlotInfo; |
| typedef struct SECKEYPrivateKeyStr SECKEYPrivateKey; |
| typedef struct SECKEYPublicKeyStr SECKEYPublicKey; |
| #endif |
| |
| namespace crypto { |
| |
| // Encapsulates an RSA private key. Can be used to generate new keys, export |
| // keys to other formats, or to extract a public key. |
| // TODO(hclam): This class should be ref-counted so it can be reused easily. |
| class CRYPTO_EXPORT RSAPrivateKey { |
| public: |
| ~RSAPrivateKey(); |
| |
| // Create a new random instance. Can return NULL if initialization fails. |
| static RSAPrivateKey* Create(uint16_t num_bits); |
| |
| // Create a new instance by importing an existing private key. The format is |
| // an ASN.1-encoded PrivateKeyInfo block from PKCS #8. This can return NULL if |
| // initialization fails. |
| static RSAPrivateKey* CreateFromPrivateKeyInfo( |
| const std::vector<uint8_t>& input); |
| |
| #if defined(USE_OPENSSL) |
| // Create a new instance from an existing EVP_PKEY, taking a |
| // reference to it. |key| must be an RSA key. Returns NULL on |
| // failure. |
| static RSAPrivateKey* CreateFromKey(EVP_PKEY* key); |
| #else |
| // Create a new instance by referencing an existing private key |
| // structure. Does not import the key. |
| static RSAPrivateKey* CreateFromKey(SECKEYPrivateKey* key); |
| #endif |
| |
| #if defined(USE_OPENSSL) |
| EVP_PKEY* key() { return key_; } |
| #else |
| SECKEYPrivateKey* key() { return key_; } |
| SECKEYPublicKey* public_key() { return public_key_; } |
| #endif |
| |
| // Creates a copy of the object. |
| RSAPrivateKey* Copy() const; |
| |
| // Exports the private key to a PKCS #8 PrivateKeyInfo block. |
| bool ExportPrivateKey(std::vector<uint8_t>* output) const; |
| |
| // Exports the public key to an X509 SubjectPublicKeyInfo block. |
| bool ExportPublicKey(std::vector<uint8_t>* output) const; |
| |
| private: |
| // Constructor is private. Use one of the Create*() methods above instead. |
| RSAPrivateKey(); |
| |
| #if defined(USE_OPENSSL) |
| EVP_PKEY* key_; |
| #else |
| SECKEYPrivateKey* key_; |
| SECKEYPublicKey* public_key_; |
| #endif |
| |
| DISALLOW_COPY_AND_ASSIGN(RSAPrivateKey); |
| }; |
| |
| } // namespace crypto |
| |
| #endif // CRYPTO_RSA_PRIVATE_KEY_H_ |