Move PrivateKeyInfoCodec to rsa_private_key_nss.cc

crypto/rsa_private_key.h

Index: crypto/rsa_private_key.h
diff --git a/crypto/rsa_private_key.h b/crypto/rsa_private_key.h
index d4808f5aaef0f495bf09cba460c4e14b04bac2a6..5a6dc8cf012ac4c2ad92f5cab9176a82bc8aaca1 100644
--- a/crypto/rsa_private_key.h
+++ b/crypto/rsa_private_key.h
@@ -25,144 +25,8 @@ typedef struct SECKEYPrivateKeyStr SECKEYPrivateKey;
 typedef struct SECKEYPublicKeyStr SECKEYPublicKey;
 #endif
 
-
 namespace crypto {
 
-// Used internally by RSAPrivateKey for serializing and deserializing
-// PKCS #8 PrivateKeyInfo and PublicKeyInfo.
-class PrivateKeyInfoCodec {
- public:
-  // ASN.1 encoding of the AlgorithmIdentifier from PKCS #8.
-  static const uint8_t kRsaAlgorithmIdentifier[];
-
-  // ASN.1 tags for some types we use.
-  static const uint8_t kBitStringTag = 0x03;
-  static const uint8_t kIntegerTag = 0x02;
-  static const uint8_t kNullTag = 0x05;
-  static const uint8_t kOctetStringTag = 0x04;
-  static const uint8_t kSequenceTag = 0x30;
-
-  // |big_endian| here specifies the byte-significance of the integer components
-  // that will be parsed & serialized (modulus(), etc...) during Import(),
-  // Export() and ExportPublicKeyInfo() -- not the ASN.1 DER encoding of the
-  // PrivateKeyInfo/PublicKeyInfo (which is always big-endian).
-  explicit PrivateKeyInfoCodec(bool big_endian);
-
-  ~PrivateKeyInfoCodec();
-
-  // Exports the contents of the integer components to the ASN.1 DER encoding
-  // of the PrivateKeyInfo structure to |output|.
-  bool Export(std::vector<uint8_t>* output);
-
-  // Exports the contents of the integer components to the ASN.1 DER encoding
-  // of the PublicKeyInfo structure to |output|.
-  bool ExportPublicKeyInfo(std::vector<uint8_t>* output);
-
-  // Exports the contents of the integer components to the ASN.1 DER encoding
-  // of the RSAPublicKey structure to |output|.
-  bool ExportPublicKey(std::vector<uint8_t>* output);
-
-  // Parses the ASN.1 DER encoding of the PrivateKeyInfo structure in |input|
-  // and populates the integer components with |big_endian_| byte-significance.
-  // IMPORTANT NOTE: This is currently *not* security-approved for importing
-  // keys from unstrusted sources.
-  bool Import(const std::vector<uint8_t>& input);
-
-  // Accessors to the contents of the integer components of the PrivateKeyInfo
-  // structure.
-  std::vector<uint8_t>* modulus() { return &modulus_; }
-  std::vector<uint8_t>* public_exponent() { return &public_exponent_; }
-  std::vector<uint8_t>* private_exponent() { return &private_exponent_; }
-  std::vector<uint8_t>* prime1() { return &prime1_; }
-  std::vector<uint8_t>* prime2() { return &prime2_; }
-  std::vector<uint8_t>* exponent1() { return &exponent1_; }
-  std::vector<uint8_t>* exponent2() { return &exponent2_; }
-  std::vector<uint8_t>* coefficient() { return &coefficient_; }
-
- private:
-  // Utility wrappers for PrependIntegerImpl that use the class's |big_endian_|
-  // value.
-  void PrependInteger(const std::vector<uint8_t>& in, std::list<uint8_t>* out);
-  void PrependInteger(uint8_t* val, int num_bytes, std::list<uint8_t>* data);
-
-  // Prepends the integer stored in |val| - |val + num_bytes| with |big_endian|
-  // byte-significance into |data| as an ASN.1 integer.
-  void PrependIntegerImpl(uint8_t* val,
-                          int num_bytes,
-                          std::list<uint8_t>* data,
-                          bool big_endian);
-
-  // Utility wrappers for ReadIntegerImpl that use the class's |big_endian_|
-  // value.
-  bool ReadInteger(uint8_t** pos, uint8_t* end, std::vector<uint8_t>* out);
-  bool ReadIntegerWithExpectedSize(uint8_t** pos,
-                                   uint8_t* end,
-                                   size_t expected_size,
-                                   std::vector<uint8_t>* out);
-
-  // Reads an ASN.1 integer from |pos|, and stores the result into |out| with
-  // |big_endian| byte-significance.
-  bool ReadIntegerImpl(uint8_t** pos,
-                       uint8_t* end,
-                       std::vector<uint8_t>* out,
-                       bool big_endian);
-
-  // Prepends the integer stored in |val|, starting a index |start|, for
-  // |num_bytes| bytes onto |data|.
-  void PrependBytes(uint8_t* val,
-                    int start,
-                    int num_bytes,
-                    std::list<uint8_t>* data);
-
-  // Helper to prepend an ASN.1 length field.
-  void PrependLength(size_t size, std::list<uint8_t>* data);
-
-  // Helper to prepend an ASN.1 type header.
-  void PrependTypeHeaderAndLength(uint8_t type,
-                                  uint32_t length,
-                                  std::list<uint8_t>* output);
-
-  // Helper to prepend an ASN.1 bit string
-  void PrependBitString(uint8_t* val,
-                        int num_bytes,
-                        std::list<uint8_t>* output);
-
-  // Read an ASN.1 length field. This also checks that the length does not
-  // extend beyond |end|.
-  bool ReadLength(uint8_t** pos, uint8_t* end, uint32_t* result);
-
-  // Read an ASN.1 type header and its length.
-  bool ReadTypeHeaderAndLength(uint8_t** pos,
-                               uint8_t* end,
-                               uint8_t expected_tag,
-                               uint32_t* length);
-
-  // Read an ASN.1 sequence declaration. This consumes the type header and
-  // length field, but not the contents of the sequence.
-  bool ReadSequence(uint8_t** pos, uint8_t* end);
-
-  // Read the RSA AlgorithmIdentifier.
-  bool ReadAlgorithmIdentifier(uint8_t** pos, uint8_t* end);
-
-  // Read one of the two version fields in PrivateKeyInfo.
-  bool ReadVersion(uint8_t** pos, uint8_t* end);
-
-  // The byte-significance of the stored components (modulus, etc..).
-  bool big_endian_;
-
-  // Component integers of the PrivateKeyInfo
-  std::vector<uint8_t> modulus_;
-  std::vector<uint8_t> public_exponent_;
-  std::vector<uint8_t> private_exponent_;
-  std::vector<uint8_t> prime1_;
-  std::vector<uint8_t> prime2_;
-  std::vector<uint8_t> exponent1_;
-  std::vector<uint8_t> exponent2_;
-  std::vector<uint8_t> coefficient_;
-
-  DISALLOW_COPY_AND_ASSIGN(PrivateKeyInfoCodec);
-};
-
 // 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.