345 lines
12 KiB
C++
345 lines
12 KiB
C++
// simeck_simd.cpp - written and placed in the public domain by Gangqiang Yang and Jeffrey Walton.
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//
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// This source file uses intrinsics and built-ins to gain access to
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// SSSE3, ARM NEON and ARMv8a, and Power7 Altivec instructions. A separate
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// source file is needed because additional CXXFLAGS are required to enable
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// the appropriate instructions sets in some build configurations.
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#include "pch.h"
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#include "config.h"
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#include "simeck.h"
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#include "misc.h"
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#include "adv_simd.h"
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// Uncomment for benchmarking C++ against SSE or NEON.
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// Do so in both simon.cpp and simon-simd.cpp.
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// #undef CRYPTOPP_SSSE3_AVAILABLE
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// #undef CRYPTOPP_ARM_NEON_AVAILABLE
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#if (CRYPTOPP_SSSE3_AVAILABLE)
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# include <pmmintrin.h>
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# include <tmmintrin.h>
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#endif
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#if defined(__XOP__)
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# include <ammintrin.h>
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#endif
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#if defined(__AVX512F__) && defined(__AVX512VL__)
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# define CRYPTOPP_AVX512_ROTATE 1
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# include <immintrin.h>
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#endif
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// Squash MS LNK4221 and libtool warnings
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extern const char SIMECK_SIMD_FNAME[] = __FILE__;
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ANONYMOUS_NAMESPACE_BEGIN
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using CryptoPP::word16;
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using CryptoPP::word32;
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#if (CRYPTOPP_SSSE3_AVAILABLE)
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//////////////////////////////////////////////////////////////////////////
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template <unsigned int R>
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inline __m128i RotateLeft32(const __m128i& val)
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{
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#if defined(CRYPTOPP_AVX512_ROTATE)
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return _mm_rol_epi32(val, R);
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#elif defined(__XOP__)
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return _mm_roti_epi32(val, R);
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#else
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return _mm_or_si128(
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_mm_slli_epi32(val, R), _mm_srli_epi32(val, 32-R));
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#endif
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}
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template <unsigned int R>
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inline __m128i RotateRight32(const __m128i& val)
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{
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#if defined(CRYPTOPP_AVX512_ROTATE)
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return _mm_ror_epi32(val, R);
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#elif defined(__XOP__)
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return _mm_roti_epi32(val, 32-R);
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#else
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return _mm_or_si128(
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_mm_slli_epi32(val, 32-R), _mm_srli_epi32(val, R));
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#endif
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}
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// Faster than two Shifts and an Or. Thanks to Louis Wingers and Bryan Weeks.
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template <>
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inline __m128i RotateLeft32<8>(const __m128i& val)
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{
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#if defined(__XOP__)
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return _mm_roti_epi32(val, 8);
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#else
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const __m128i mask = _mm_set_epi8(14,13,12,15, 10,9,8,11, 6,5,4,7, 2,1,0,3);
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return _mm_shuffle_epi8(val, mask);
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#endif
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}
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// Faster than two Shifts and an Or. Thanks to Louis Wingers and Bryan Weeks.
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template <>
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inline __m128i RotateRight32<8>(const __m128i& val)
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{
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#if defined(__XOP__)
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return _mm_roti_epi32(val, 32-8);
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#else
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const __m128i mask = _mm_set_epi8(12,15,14,13, 8,11,10,9, 4,7,6,5, 0,3,2,1);
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return _mm_shuffle_epi8(val, mask);
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#endif
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}
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/// \brief Unpack XMM words
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/// \tparam IDX the element from each XMM word
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/// \param a the first XMM word
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/// \param b the second XMM word
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/// \param c the third XMM word
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/// \param d the fourth XMM word
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/// \details UnpackXMM selects the IDX element from a, b, c, d and returns a concatenation
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/// equivalent to <tt>a[IDX] || b[IDX] || c[IDX] || d[IDX]</tt>.
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template <unsigned int IDX>
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inline __m128i UnpackXMM(const __m128i& a, const __m128i& b, const __m128i& c, const __m128i& d)
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{
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// Should not be instantiated
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CRYPTOPP_UNUSED(a); CRYPTOPP_UNUSED(b);
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CRYPTOPP_UNUSED(c); CRYPTOPP_UNUSED(d);
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CRYPTOPP_ASSERT(0);
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return _mm_setzero_si128();
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}
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template <>
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inline __m128i UnpackXMM<0>(const __m128i& a, const __m128i& b, const __m128i& c, const __m128i& d)
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{
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const __m128i r1 = _mm_unpacklo_epi32(a, b);
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const __m128i r2 = _mm_unpacklo_epi32(c, d);
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return _mm_shuffle_epi8(_mm_unpacklo_epi64(r1, r2),
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_mm_set_epi8(12,13,14,15, 8,9,10,11, 4,5,6,7, 0,1,2,3));
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}
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template <>
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inline __m128i UnpackXMM<1>(const __m128i& a, const __m128i& b, const __m128i& c, const __m128i& d)
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{
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const __m128i r1 = _mm_unpacklo_epi32(a, b);
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const __m128i r2 = _mm_unpacklo_epi32(c, d);
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return _mm_shuffle_epi8(_mm_unpackhi_epi64(r1, r2),
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_mm_set_epi8(12,13,14,15, 8,9,10,11, 4,5,6,7, 0,1,2,3));
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}
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template <>
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inline __m128i UnpackXMM<2>(const __m128i& a, const __m128i& b, const __m128i& c, const __m128i& d)
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{
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const __m128i r1 = _mm_unpackhi_epi32(a, b);
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const __m128i r2 = _mm_unpackhi_epi32(c, d);
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return _mm_shuffle_epi8(_mm_unpacklo_epi64(r1, r2),
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_mm_set_epi8(12,13,14,15, 8,9,10,11, 4,5,6,7, 0,1,2,3));
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}
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template <>
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inline __m128i UnpackXMM<3>(const __m128i& a, const __m128i& b, const __m128i& c, const __m128i& d)
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{
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const __m128i r1 = _mm_unpackhi_epi32(a, b);
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const __m128i r2 = _mm_unpackhi_epi32(c, d);
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return _mm_shuffle_epi8(_mm_unpackhi_epi64(r1, r2),
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_mm_set_epi8(12,13,14,15, 8,9,10,11, 4,5,6,7, 0,1,2,3));
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}
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/// \brief Unpack a XMM word
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/// \tparam IDX the element from each XMM word
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/// \param v the first XMM word
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/// \details UnpackXMM selects the IDX element from v and returns a concatenation
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/// equivalent to <tt>v[IDX] || v[IDX] || v[IDX] || v[IDX]</tt>.
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template <unsigned int IDX>
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inline __m128i UnpackXMM(const __m128i& v)
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{
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// Should not be instantiated
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CRYPTOPP_UNUSED(v); CRYPTOPP_ASSERT(0);
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return _mm_setzero_si128();
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}
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template <>
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inline __m128i UnpackXMM<0>(const __m128i& v)
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{
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return _mm_shuffle_epi8(v, _mm_set_epi8(0,1,2,3, 0,1,2,3, 0,1,2,3, 0,1,2,3));
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}
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template <>
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inline __m128i UnpackXMM<1>(const __m128i& v)
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{
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return _mm_shuffle_epi8(v, _mm_set_epi8(4,5,6,7, 4,5,6,7, 4,5,6,7, 4,5,6,7));
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}
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template <>
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inline __m128i UnpackXMM<2>(const __m128i& v)
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{
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return _mm_shuffle_epi8(v, _mm_set_epi8(8,9,10,11, 8,9,10,11, 8,9,10,11, 8,9,10,11));
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}
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template <>
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inline __m128i UnpackXMM<3>(const __m128i& v)
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{
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return _mm_shuffle_epi8(v, _mm_set_epi8(12,13,14,15, 12,13,14,15, 12,13,14,15, 12,13,14,15));
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}
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template <unsigned int IDX>
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inline __m128i RepackXMM(const __m128i& a, const __m128i& b, const __m128i& c, const __m128i& d)
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{
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return UnpackXMM<IDX>(a, b, c, d);
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}
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template <unsigned int IDX>
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inline __m128i RepackXMM(const __m128i& v)
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{
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return UnpackXMM<IDX>(v);
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}
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inline void SIMECK64_Encrypt(__m128i &a, __m128i &b, __m128i &c, __m128i &d, const __m128i key)
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{
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// SunStudio 12.3 workaround
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__m128i s, t; s = a; t = c;
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a = _mm_xor_si128(_mm_and_si128(a, RotateLeft32<5>(a)), RotateLeft32<1>(a));
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c = _mm_xor_si128(_mm_and_si128(c, RotateLeft32<5>(c)), RotateLeft32<1>(c));
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a = _mm_xor_si128(a, _mm_xor_si128(b, key));
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c = _mm_xor_si128(c, _mm_xor_si128(d, key));
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b = s; d = t;
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}
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inline void SIMECK64_Enc_Block(__m128i &block0, const word32 *subkeys, unsigned int /*rounds*/)
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{
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// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 B1 C1 D1][A2 B2 C2 D2] ...
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__m128i a = UnpackXMM<0>(block0);
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__m128i b = UnpackXMM<1>(block0);
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__m128i c = UnpackXMM<2>(block0);
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__m128i d = UnpackXMM<3>(block0);
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const unsigned int rounds = 44;
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for (int i = 0; i < static_cast<int>(rounds); i += 4)
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{
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const __m128i key = _mm_loadu_si128((const __m128i*)(subkeys + i));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(0, 0, 0, 0)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(1, 1, 1, 1)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(2, 2, 2, 2)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(3, 3, 3, 3)));
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}
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// [A1 B1 C1 D1][A2 B2 C2 D2] ... => [A1 A2 A3 A4][B1 B2 B3 B4] ...
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block0 = RepackXMM<0>(a,b,c,d);
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}
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inline void SIMECK64_Dec_Block(__m128i &block0, const word32 *subkeys, unsigned int /*rounds*/)
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{
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// SIMECK requires a word swap for the decryption transform
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__m128i w = _mm_shuffle_epi32(block0, _MM_SHUFFLE(2, 3, 0, 1));
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// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 B1 C1 D1][A2 B2 C2 D2] ...
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__m128i a = UnpackXMM<0>(w);
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__m128i b = UnpackXMM<1>(w);
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__m128i c = UnpackXMM<2>(w);
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__m128i d = UnpackXMM<3>(w);
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const unsigned int rounds = 44;
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for (int i = static_cast<int>(rounds)-1; i >= 0; i -= 4)
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{
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const __m128i key = _mm_loadu_si128((const __m128i*)(subkeys + i - 3));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(3, 3, 3, 3)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(2, 2, 2, 2)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(1, 1, 1, 1)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(0, 0, 0, 0)));
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}
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// [A1 B1 C1 D1][A2 B2 C2 D2] ... => [A1 A2 A3 A4][B1 B2 B3 B4] ...
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w = RepackXMM<0>(a,b,c,d);
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block0 = _mm_shuffle_epi32(w, _MM_SHUFFLE(2, 3, 0, 1));
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}
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inline void SIMECK64_Enc_4_Blocks(__m128i &block0, __m128i &block1,
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__m128i &block2, __m128i &block3, const word32 *subkeys, unsigned int /*rounds*/)
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{
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// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 B1 C1 D1][A2 B2 C2 D2] ...
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__m128i a = UnpackXMM<0>(block0, block1, block2, block3);
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__m128i b = UnpackXMM<1>(block0, block1, block2, block3);
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__m128i c = UnpackXMM<2>(block0, block1, block2, block3);
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__m128i d = UnpackXMM<3>(block0, block1, block2, block3);
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const unsigned int rounds = 44;
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for (int i = 0; i < static_cast<int>(rounds); i += 4)
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{
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const __m128i key = _mm_loadu_si128((const __m128i*)(subkeys + i));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(0, 0, 0, 0)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(1, 1, 1, 1)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(2, 2, 2, 2)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(3, 3, 3, 3)));
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}
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// [A1 B1 C1 D1][A2 B2 C2 D2] ... => [A1 A2 A3 A4][B1 B2 B3 B4] ...
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block0 = RepackXMM<0>(a, b, c, d);
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block1 = RepackXMM<1>(a, b, c, d);
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block2 = RepackXMM<2>(a, b, c, d);
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block3 = RepackXMM<3>(a, b, c, d);
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}
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inline void SIMECK64_Dec_4_Blocks(__m128i &block0, __m128i &block1,
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__m128i &block2, __m128i &block3, const word32 *subkeys, unsigned int /*rounds*/)
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{
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// SIMECK requires a word swap for the decryption transform
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__m128i w = _mm_shuffle_epi32(block0, _MM_SHUFFLE(2, 3, 0, 1));
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__m128i x = _mm_shuffle_epi32(block1, _MM_SHUFFLE(2, 3, 0, 1));
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__m128i y = _mm_shuffle_epi32(block2, _MM_SHUFFLE(2, 3, 0, 1));
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__m128i z = _mm_shuffle_epi32(block3, _MM_SHUFFLE(2, 3, 0, 1));
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// [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 B1 C1 D1][A2 B2 C2 D2] ...
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__m128i a = UnpackXMM<0>(w, x, y, z);
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__m128i b = UnpackXMM<1>(w, x, y, z);
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__m128i c = UnpackXMM<2>(w, x, y, z);
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__m128i d = UnpackXMM<3>(w, x, y, z);
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const unsigned int rounds = 44;
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for (int i = static_cast<int>(rounds)-1; i >= 0; i -= 4)
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{
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const __m128i key = _mm_loadu_si128((const __m128i*)(subkeys + i - 3));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(3, 3, 3, 3)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(2, 2, 2, 2)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(1, 1, 1, 1)));
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SIMECK64_Encrypt(a, b, c, d, _mm_shuffle_epi32(key, _MM_SHUFFLE(0, 0, 0, 0)));
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}
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// [A1 B1 C1 D1][A2 B2 C2 D2] ... => [A1 A2 A3 A4][B1 B2 B3 B4] ...
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w = RepackXMM<0>(a, b, c, d);
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x = RepackXMM<1>(a, b, c, d);
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y = RepackXMM<2>(a, b, c, d);
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z = RepackXMM<3>(a, b, c, d);
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block0 = _mm_shuffle_epi32(w, _MM_SHUFFLE(2, 3, 0, 1));
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block1 = _mm_shuffle_epi32(x, _MM_SHUFFLE(2, 3, 0, 1));
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block2 = _mm_shuffle_epi32(y, _MM_SHUFFLE(2, 3, 0, 1));
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block3 = _mm_shuffle_epi32(z, _MM_SHUFFLE(2, 3, 0, 1));
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}
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#endif // CRYPTOPP_SSSE3_AVAILABLE
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ANONYMOUS_NAMESPACE_END
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NAMESPACE_BEGIN(CryptoPP)
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#if defined(CRYPTOPP_SSSE3_AVAILABLE)
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size_t SIMECK64_Enc_AdvancedProcessBlocks_SSSE3(const word32* subKeys, size_t rounds,
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const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
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{
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return AdvancedProcessBlocks64_4x1_SSE(SIMECK64_Enc_Block, SIMECK64_Enc_4_Blocks,
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subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
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}
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size_t SIMECK64_Dec_AdvancedProcessBlocks_SSSE3(const word32* subKeys, size_t rounds,
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const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
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{
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return AdvancedProcessBlocks64_4x1_SSE(SIMECK64_Dec_Block, SIMECK64_Dec_4_Blocks,
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subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
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}
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#endif // CRYPTOPP_SSSE3_AVAILABLE
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NAMESPACE_END
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