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https://github.com/data61/MP-SPDZ.git
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127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
#ifndef __AES_H
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#define __AES_H
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#include "Networking/data.h"
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#include "cpu_support.h"
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#include "intrinsics.h"
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typedef unsigned int uint;
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#define AES_BLK_SIZE 16
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/************* C Version *************/
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// Key Schedule
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void aes_schedule( int nb, int nr, const octet* k, uint* RK );
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inline void aes_schedule( uint* RK, octet* K )
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{ aes_schedule(4,10,K,RK); }
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inline void aes_128_schedule( uint* RK, const octet* K )
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{ aes_schedule(4,10,K,RK); }
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inline void aes_192_schedule( uint* RK, octet* K )
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{ aes_schedule(6,12,K,RK); }
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inline void aes_256_schedule( uint* RK, octet* K )
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{ aes_schedule(8,14,K,RK); }
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// Encryption Function
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void aes_128_encrypt( octet* C, octet* M, uint* RK );
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void aes_192_encrypt( octet* C, octet* M, uint* RK );
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void aes_256_encrypt( octet* C, octet* M, uint* RK );
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inline void aes_encrypt( octet* C, octet* M, uint* RK )
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{ aes_128_encrypt(C,M,RK ); }
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/*********** M-Code Version ***********/
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// Check can support this
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inline int Check_CPU_support_AES() { return cpu_has_aes(); }
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// Key Schedule
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void aes_128_schedule( octet* key, const octet* userkey );
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void aes_192_schedule( octet* key, const octet* userkey );
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void aes_256_schedule( octet* key, const octet* userkey );
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inline void aes_schedule( octet* key, const octet* userkey )
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{ aes_128_schedule(key,userkey); }
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// Encryption Function
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void aes_128_encrypt( octet* C, const octet* M,const octet* RK );
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void aes_192_encrypt( octet* C, const octet* M,const octet* RK );
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void aes_256_encrypt( octet* C, const octet* M,const octet* RK );
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#ifndef __clang__
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__attribute__((optimize("unroll-loops")))
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#endif
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inline __m128i aes_128_encrypt(__m128i in, const octet* key)
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{
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#if defined(__AES__) || !defined(__x86_64__)
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if (cpu_has_aes())
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{
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__m128i& tmp = in;
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tmp = _mm_xor_si128 (tmp,((__m128i*)key)[0]);
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int j;
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for(j=1; j <10; j++)
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tmp = _mm_aesenc_si128 (tmp,((__m128i*)key)[j]);
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tmp = _mm_aesenclast_si128 (tmp,((__m128i*)key)[j]);
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return tmp;
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}
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else
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#endif
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{
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__m128i tmp;
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aes_128_encrypt((octet*) &tmp, (octet*) &in, (uint*) key);
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return tmp;
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}
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}
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template <int N>
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inline void software_ecb_aes_128_encrypt(__m128i* out, const __m128i* in, uint* key)
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{
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for (int i = 0; i < N; i++)
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aes_128_encrypt((octet*)&out[i], (octet*)&in[i], key);
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}
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template <int N>
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#ifndef __clang__
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__attribute__((optimize("unroll-loops")))
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#endif
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inline void ecb_aes_128_encrypt(__m128i* out, const __m128i* in, const octet* key)
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{
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#if defined(__AES__) || !defined(__x86_64__)
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if (cpu_has_aes())
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{
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__m128i tmp[N];
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for (int i = 0; i < N; i++)
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tmp[i] = _mm_xor_si128 (in[i],((__m128i*)key)[0]);
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int j;
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for(j=1; j <10; j++)
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for (int i = 0; i < N; i++)
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tmp[i] = _mm_aesenc_si128 (tmp[i],((__m128i*)key)[j]);
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for (int i = 0; i < N; i++)
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out[i] = _mm_aesenclast_si128 (tmp[i],((__m128i*)key)[j]);
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}
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else
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#endif
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software_ecb_aes_128_encrypt<N>(out, in, (uint*) key);
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}
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template <int N>
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inline void ecb_aes_128_encrypt(__m128i* out, const __m128i* in, const octet* key, const int* indices)
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{
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__m128i tmp[N];
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for (int i = 0; i < N; i++)
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tmp[i] = in[indices[i]];
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ecb_aes_128_encrypt<N>(tmp, tmp, key);
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for (int i = 0; i < N; i++)
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out[indices[i]] = tmp[i];
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}
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inline void aes_encrypt( octet* C, const octet* M,const octet* RK )
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{ aes_128_encrypt(C,M,RK); }
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inline __m128i aes_encrypt( __m128i M,const octet* RK )
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{ return aes_128_encrypt(M,RK); }
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#endif
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