Botan  1.11.15
src/lib/block/aes_ni/aes_ni.h
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00001 /*
00002 * AES using AES-NI instructions
00003 * (C) 2009 Jack Lloyd
00004 *
00005 * Botan is released under the Simplified BSD License (see license.txt)
00006 */
00007 
00008 #ifndef BOTAN_AES_NI_H__
00009 #define BOTAN_AES_NI_H__
00010 
00011 #include <botan/block_cipher.h>
00012 
00013 namespace Botan {
00014 
00015 /**
00016 * AES-128 using AES-NI
00017 */
00018 class BOTAN_DLL AES_128_NI : public Block_Cipher_Fixed_Params<16, 16>
00019    {
00020    public:
00021       size_t parallelism() const { return 4; }
00022 
00023       void encrypt_n(const byte in[], byte out[], size_t blocks) const;
00024       void decrypt_n(const byte in[], byte out[], size_t blocks) const;
00025 
00026       void clear();
00027       std::string name() const { return "AES-128"; }
00028       BlockCipher* clone() const { return new AES_128_NI; }
00029    private:
00030       void key_schedule(const byte[], size_t);
00031 
00032       secure_vector<u32bit> EK, DK;
00033    };
00034 
00035 /**
00036 * AES-192 using AES-NI
00037 */
00038 class BOTAN_DLL AES_192_NI : public Block_Cipher_Fixed_Params<16, 24>
00039    {
00040    public:
00041       size_t parallelism() const { return 4; }
00042 
00043       void encrypt_n(const byte in[], byte out[], size_t blocks) const;
00044       void decrypt_n(const byte in[], byte out[], size_t blocks) const;
00045 
00046       void clear();
00047       std::string name() const { return "AES-192"; }
00048       BlockCipher* clone() const { return new AES_192_NI; }
00049    private:
00050       void key_schedule(const byte[], size_t);
00051 
00052       secure_vector<u32bit> EK, DK;
00053    };
00054 
00055 /**
00056 * AES-256 using AES-NI
00057 */
00058 class BOTAN_DLL AES_256_NI : public Block_Cipher_Fixed_Params<16, 32>
00059    {
00060    public:
00061       size_t parallelism() const { return 4; }
00062 
00063       void encrypt_n(const byte in[], byte out[], size_t blocks) const;
00064       void decrypt_n(const byte in[], byte out[], size_t blocks) const;
00065 
00066       void clear();
00067       std::string name() const { return "AES-256"; }
00068       BlockCipher* clone() const { return new AES_256_NI; }
00069    private:
00070       void key_schedule(const byte[], size_t);
00071 
00072       secure_vector<u32bit> EK, DK;
00073    };
00074 
00075 }
00076 
00077 #endif