inc/FSecCryptoSha2Hmac.h

   1 //
   2 // Open Service Platform
   3 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
   4 //
   5 // Licensed under the Apache License, Version 2.0 (the License);
   6 // you may not use this file except in compliance with the License.
   7 // You may obtain a copy of the License at
   8 //
   9 //     http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing, software
  12 // distributed under the License is distributed on an "AS IS" BASIS,
  13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 // See the License for the specific language governing permissions and
  15 // limitations under the License.
  16 //
  17
  18 /**
  19  * @file                FSecCryptoSha2Hmac.h
  20  * @brief       This is the header file for the %Sha2Hmac class.
  21  *
  22  * This header file contains the declarations of the %Sha2Hmac class.
  23  */
  24 #ifndef _FSEC_CRYPTO_SHA2_HMAC_H_
  25 #define _FSEC_CRYPTO_SHA2_HMAC_H_
  26
  27 #include <FSecCryptoIHmac.h>
  28
  29 struct env_md_st;
  30 struct hmac_ctx_st;
  31
  32 namespace Tizen { namespace Security { namespace Crypto
  33 {
  34
  35 /**
  36  *      @class  Sha2Hmac
  37  *      @brief  This class implements the SHA-2 HMAC algorithm.
  38  *
  39  *      @since  2.0
  40  *
  41  *      The %Sha2Hmac class implements the SHA-2 HMAC algorithm. @n
  42  *
  43  * For more information on the class features, see <a href="../org.tizen.native.appprogramming/html/guide/security/hashing.htm">Hashing</a>.
  44  *
  45  *      @see            Tizen::Security::Crypto::IHmac
  46  *      @see            Tizen::Security::Crypto::Md5Hmac
  47  *      @see            Tizen::Security::Crypto::Sha1Hmac
  48  */
  49 class _OSP_EXPORT_ Sha2Hmac
  50         : public virtual IHmac
  51         , public Tizen::Base::Object
  52 {
  53
  54 public:
  55         /**
  56          *      This is the default constructor for this class.
  57          *
  58          *      @since  2.0
  59          */
  60         Sha2Hmac(void);
  61
  62         /**
  63          *      This destructor overrides Tizen::Base::Object::~Object().
  64          *
  65          *      @since          2.0
  66          */
  67         virtual ~Sha2Hmac(void);
  68
  69         /**
  70          *      Sets the HMAC algorithm.
  71          *
  72          *      @since          2.0
  73          *
  74          *      @return         An error code
  75          *      @param[in]      algorithm                               The name of the HMAC algorithm @n
  76          *                                                                              For example, "HMACSHA2/224", "HMACSHA2/256", "HMACSHA2/384", or "HMACSHA2/512".
  77          *      @exception      E_SUCCESS                               The method is successful.
  78          *      @exception      E_UNSUPPORTED_ALGORITHM The algorithm is not supported.
  79          */
  80         virtual result SetAlgorithm(const Tizen::Base::String& algorithm);
  81
  82         /**
  83          *      Sets the secret key.
  84          *
  85          *      @since          2.0
  86          *
  87          *      @return         An error code
  88          *      @param[in]      key                                             An instance of ISecretKey
  89          *      @exception      E_SUCCESS                               The method is successful.
  90          *      @exception      E_INVALID_ARG                   The specified @c key is invalid.
  91          *      @exception      E_OUT_OF_MEMORY                 The memory is insufficient.
  92          */
  93         virtual result SetKey(const Tizen::Security::ISecretKey& key);
  94
  95         /**
  96          *      Gets the HMAC with the given input.
  97          *
  98          *      @since          2.0
  99          *
 100          *      @return         A pointer to the Tizen::Base::ByteBuffer class that contains the output, @n
 101          *                              else @c null if an error occurs
 102          *      @param[in]      input                                   An instance of Tizen::Base::ByteBuffer
 103          *      @exception      E_SUCCESS                               The method is successful.
 104          *      @exception      E_INVALID_ARG                   The input Tizen::Base::ByteBuffer is empty or contains invalid data.
 105          *      @exception      E_OUT_OF_MEMORY                 The memory is insufficient.
 106          *      @exception      E_KEY_NOT_FOUND                 The specified key is not found.
 107          *      @exception      E_SYSTEM                                A system error has occurred. @n
 108          *                                                                              The method has failed to operate with the OpenSSL library, or
 109          *                                                                              the Tizen::Base::ByteBuffer operation has failed.
 110          *      @remarks        The specific error code can be accessed using the GetLastResult() method.
 111          */
 112         virtual Tizen::Base::ByteBuffer* GetHmacN(const Tizen::Base::ByteBuffer& input) const;
 113
 114         /**
 115          * Initializes a multiple-part HMAC operation.
 116          *
 117          *      @since          2.0
 118          *
 119          *      @return         An error code
 120          *      @exception      E_SUCCESS                               The method is successful.
 121          *      @exception      E_OUT_OF_MEMORY                 The memory is insufficient.
 122          *      @exception      E_KEY_NOT_FOUND                 The specified key is not found.
 123          *      @exception      E_SYSTEM                                A system error has occurred. @n
 124          *                                                                              The method has failed to operate with the OpenSSL library.
 125          */
 126         virtual result Initialize(void);
 127
 128         /**
 129          *      Updates a multiple-part HMAC operation while processing another part of the data.
 130          *
 131          *      @since          2.0
 132          *
 133          *      @return         An error code
 134          *      @param[in]      input                                   An instance of Tizen::Base::ByteBuffer
 135          *      @exception      E_SUCCESS                               The method is successful.
 136          *      @exception      E_INVALID_ARG                   The input Tizen::Base::ByteBuffer is empty or contains invalid data.
 137          *      @exception      E_OUT_OF_MEMORY                 The memory is insufficient.
 138          *      @exception      E_SYSTEM                                A system error has occurred. @n
 139          *                                                                              The method has failed to operate with the OpenSSL library, or
 140          *                                                                              the Tizen::Base::ByteBuffer operation has failed.
 141          */
 142         virtual result Update(const Tizen::Base::ByteBuffer& input);
 143
 144         /**
 145          * Finalizes a multiple-part HMAC operation.
 146          *
 147          *      @since          2.0
 148          *
 149          *      @return         A pointer to the Tizen::Base::ByteBuffer class that contains the output, @n
 150          *                              else @c null if an error occurs
 151          *      @exception      E_SUCCESS                               The method is successful.
 152          *      @exception      E_OUT_OF_MEMORY                 The memory is insufficient.
 153          *      @exception      E_SYSTEM                                A system error has occurred. @n
 154          *                                                                              The method has failed to operate with the OpenSSL library, or
 155          *                                                                              the Tizen::Base::ByteBuffer operation has failed.
 156          *      @remarks        The specific error code can be accessed using the GetLastResult() method.
 157          */
 158         virtual Tizen::Base::ByteBuffer* FinalizeN(void);
 159
 160 private:
 161
 162         //
 163         // The implementation of this copy constructor is intentionally blank and declared as private to prohibit copying of objects.
 164         //
 165         // @since 2.0
 166         //
 167         Sha2Hmac(const Sha2Hmac& rhs);
 168
 169         //
 170         // The implementation of this copy assignment operator is intentionally blank and declared as private to prohibit copying of objects.
 171         //
 172         // @since 2.0
 173         //
 174         Sha2Hmac& operator =(const Sha2Hmac& rhs);
 175
 176 private:
 177         hmac_ctx_st* __pSha2HmacCtx;
 178         Tizen::Base::ByteBuffer __keyBytes;
 179         const env_md_st* __pAlgorithm;
 180
 181         class _Sha2HmacImpl* __pSha2HmacImpl;
 182         friend class _Sha2HmacImpl;
 183
 184 }; //Sha2Hmac
 185
 186 } } } //Tizen::Security:Crypto
 187
 188 #endif //_FSEC_CRYPTO_SHA2_HMAC_H_