1 /*---------------------------------------------------------------------------* 2 Project: Horizon 3 File: crypto_CtrEncryptor.h 4 5 Copyright (C)2009-2012 Nintendo Co., Ltd. All rights reserved. 6 7 These coded instructions, statements, and computer programs contain 8 proprietary information of Nintendo of America Inc. and/or Nintendo 9 Company Ltd., and are protected by Federal copyright law. They may 10 not be disclosed to third parties or copied or duplicated in any form, 11 in whole or in part, without the prior written consent of Nintendo. 12 13 $Rev: 46347 $ 14 *---------------------------------------------------------------------------*/ 15 16 #ifndef NN_CRYPTO_CRYPTO_CTRENCRYPTOR_H_ 17 #define NN_CRYPTO_CRYPTO_CTRENCRYPTOR_H_ 18 19 #include <nn/crypto/crypto_Encryptor.h> 20 #include <nn/crypto/detail/crypto_CtrMode.h> 21 22 23 namespace nn { 24 namespace crypto { 25 26 27 28 /* Please see man pages for details 29 30 31 32 33 34 35 36 37 38 39 40 41 42 */ 43 template <size_t BlockSize> 44 class CtrEncryptor : public Encryptor 45 { 46 private: 47 typedef detail::CtrMode<BlockSize> ImplT; 48 49 public: 50 // 51 // 52 // 53 static const size_t BLOCK_SIZE = ImplT::BLOCK_SIZE; 54 55 // 56 // 57 // 58 static const size_t IV_SIZE = ImplT::IV_SIZE; 59 60 // 61 // 62 // 63 static const size_t UNIT_SIZE = ImplT::UNIT_SIZE; 64 65 public: CtrEncryptor()66 CtrEncryptor(){} ~CtrEncryptor()67 virtual ~CtrEncryptor(){} 68 69 /* Please see man pages for details 70 71 72 73 74 75 76 */ GetIvSize()77 virtual size_t GetIvSize() const { return ImplT::GetIvSize(); } 78 79 /* Please see man pages for details 80 81 82 83 84 85 */ GetUnitSize()86 virtual size_t GetUnitSize() const { return ImplT::GetUnitSize(); } 87 88 89 90 /* Please see man pages for details 91 92 93 94 95 96 97 98 */ Initialize(const BlockCipher & c,const void * pIv,size_t ivSize)99 virtual void Initialize(const BlockCipher& c, const void* pIv, size_t ivSize) 100 { return m_Impl.Initialize(c, pIv, ivSize); } 101 102 /* Please see man pages for details 103 104 105 106 */ Finalize()107 virtual void Finalize() 108 { return m_Impl.Finalize(); } 109 110 /* Please see man pages for details 111 112 113 114 115 116 117 118 119 120 */ Update(void * pDst,size_t dstSize,const void * pSrc,size_t srcSize)121 virtual size_t Update(void* pDst, size_t dstSize, const void* pSrc, size_t srcSize) 122 { return m_Impl.Update(pDst, dstSize, pSrc, srcSize); } 123 124 /* Please see man pages for details 125 126 127 128 129 130 131 132 */ UpdateFinal(void * pDst,size_t size)133 virtual size_t UpdateFinal(void* pDst, size_t size) 134 { return m_Impl.UpdateFinal(pDst, size); } 135 136 137 138 /* Please see man pages for details 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 */ Encrypt(void * pDst,size_t dstSize,const void * pSrc,size_t srcSize,const void * pIv,size_t ivSize,const BlockCipher & c)167 static size_t Encrypt(void* pDst, size_t dstSize, const void* pSrc, size_t srcSize, 168 const void* pIv, size_t ivSize, const BlockCipher& c) 169 { 170 CtrEncryptor<BlockSize> e; 171 return e.Encryptor::Encrypt(pDst, dstSize, pSrc, srcSize, pIv, ivSize, c); 172 } 173 174 private: 175 ImplT m_Impl; 176 }; 177 178 /* Please see man pages for details 179 180 */ 181 typedef CtrEncryptor<16> CtrEncryptor128; 182 183 184 185 } // namespace crypto 186 } // namespace nn 187 188 189 190 #endif /* NN_CRYPTO_CRYPTO_CTRENCRYPTOR_H_ */ 191