344 lines
11 KiB
C++
344 lines
11 KiB
C++
// aria.cpp - written and placed in the public domain by Jeffrey Walton
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#include "pch.h"
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#include "config.h"
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#include "aria.h"
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#include "misc.h"
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#include "cpu.h"
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#if CRYPTOPP_SSE2_INTRIN_AVAILABLE
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# define CRYPTOPP_ENABLE_ARIA_SSE2_INTRINSICS 1
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#endif
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#if CRYPTOPP_SSSE3_AVAILABLE
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# define CRYPTOPP_ENABLE_ARIA_SSSE3_INTRINSICS 1
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#endif
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// GCC cast warning. Note: this is used on round key table,
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// which is word32 and naturally aligned.
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#define UINT32_CAST(x) ((word32 *)(void *)(x))
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NAMESPACE_BEGIN(CryptoPP)
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NAMESPACE_BEGIN(ARIATab)
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extern const word32 S1[256];
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extern const word32 S2[256];
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extern const word32 X1[256];
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extern const word32 X2[256];
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extern const word32 KRK[3][4];
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NAMESPACE_END
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NAMESPACE_END
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NAMESPACE_BEGIN(CryptoPP)
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using CryptoPP::ARIATab::S1;
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using CryptoPP::ARIATab::S2;
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using CryptoPP::ARIATab::X1;
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using CryptoPP::ARIATab::X2;
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using CryptoPP::ARIATab::KRK;
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inline byte ARIA_BRF(const word32 x, const int y) {
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return static_cast<byte>(GETBYTE(x, y));
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}
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// Key XOR Layer
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#define ARIA_KXL { \
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typedef BlockGetAndPut<word32, NativeByteOrder, true, true> NativeBlock; \
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NativeBlock::Put(rk, t)(t[0])(t[1])(t[2])(t[3]); \
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}
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// S-Box Layer 1 + M
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#define SBL1_M(T0,T1,T2,T3) { \
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T0=S1[ARIA_BRF(T0,3)]^S2[ARIA_BRF(T0,2)]^X1[ARIA_BRF(T0,1)]^X2[ARIA_BRF(T0,0)]; \
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T1=S1[ARIA_BRF(T1,3)]^S2[ARIA_BRF(T1,2)]^X1[ARIA_BRF(T1,1)]^X2[ARIA_BRF(T1,0)]; \
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T2=S1[ARIA_BRF(T2,3)]^S2[ARIA_BRF(T2,2)]^X1[ARIA_BRF(T2,1)]^X2[ARIA_BRF(T2,0)]; \
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T3=S1[ARIA_BRF(T3,3)]^S2[ARIA_BRF(T3,2)]^X1[ARIA_BRF(T3,1)]^X2[ARIA_BRF(T3,0)]; \
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}
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// S-Box Layer 2 + M
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#define SBL2_M(T0,T1,T2,T3) { \
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T0=X1[ARIA_BRF(T0,3)]^X2[ARIA_BRF(T0,2)]^S1[ARIA_BRF(T0,1)]^S2[ARIA_BRF(T0,0)]; \
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T1=X1[ARIA_BRF(T1,3)]^X2[ARIA_BRF(T1,2)]^S1[ARIA_BRF(T1,1)]^S2[ARIA_BRF(T1,0)]; \
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T2=X1[ARIA_BRF(T2,3)]^X2[ARIA_BRF(T2,2)]^S1[ARIA_BRF(T2,1)]^S2[ARIA_BRF(T2,0)]; \
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T3=X1[ARIA_BRF(T3,3)]^X2[ARIA_BRF(T3,2)]^S1[ARIA_BRF(T3,1)]^S2[ARIA_BRF(T3,0)]; \
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}
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#define ARIA_P(T0,T1,T2,T3) { \
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(T1) = (((T1)<< 8)&0xff00ff00) ^ (((T1)>> 8)&0x00ff00ff); \
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(T2) = rotrConstant<16>(T2); \
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(T3) = ByteReverse((T3)); \
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}
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#define ARIA_M(X,Y) { \
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Y=(X)<<8 ^ (X)>>8 ^ (X)<<16 ^ (X)>>16 ^ (X)<<24 ^ (X)>>24; \
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}
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#define ARIA_MM(T0,T1,T2,T3) { \
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(T1)^=(T2); (T2)^=(T3); (T0)^=(T1); \
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(T3)^=(T1); (T2)^=(T0); (T1)^=(T2); \
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}
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#define ARIA_FO {SBL1_M(t[0],t[1],t[2],t[3]) ARIA_MM(t[0],t[1],t[2],t[3]) ARIA_P(t[0],t[1],t[2],t[3]) ARIA_MM(t[0],t[1],t[2],t[3])}
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#define ARIA_FE {SBL2_M(t[0],t[1],t[2],t[3]) ARIA_MM(t[0],t[1],t[2],t[3]) ARIA_P(t[2],t[3],t[0],t[1]) ARIA_MM(t[0],t[1],t[2],t[3])}
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#if (CRYPTOPP_ARM_NEON_AVAILABLE)
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extern void ARIA_UncheckedSetKey_Schedule_NEON(byte* rk, word32* ws, unsigned int keylen);
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extern void ARIA_ProcessAndXorBlock_NEON(const byte* xorBlock, byte* outblock, const byte *rk, word32 *t);
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#endif
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#if (CRYPTOPP_SSSE3_AVAILABLE)
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extern void ARIA_ProcessAndXorBlock_SSSE3(const byte* xorBlock, byte* outBlock, const byte *rk, word32 *t);
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#endif
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// n-bit right shift of Y XORed to X
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template <unsigned int N>
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inline void ARIA_GSRK(const word32 X[4], const word32 Y[4], byte RK[16])
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{
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// MSVC is not generating a "rotate immediate". Constify to help it along.
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static const unsigned int Q = 4-(N/32);
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static const unsigned int R = N % 32;
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UINT32_CAST(RK)[0] = (X[0]) ^ ((Y[(Q )%4])>>R) ^ ((Y[(Q+3)%4])<<(32-R));
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UINT32_CAST(RK)[1] = (X[1]) ^ ((Y[(Q+1)%4])>>R) ^ ((Y[(Q )%4])<<(32-R));
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UINT32_CAST(RK)[2] = (X[2]) ^ ((Y[(Q+2)%4])>>R) ^ ((Y[(Q+1)%4])<<(32-R));
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UINT32_CAST(RK)[3] = (X[3]) ^ ((Y[(Q+3)%4])>>R) ^ ((Y[(Q+2)%4])<<(32-R));
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}
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void ARIA::Base::UncheckedSetKey(const byte *key, unsigned int keylen, const NameValuePairs ¶ms)
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{
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CRYPTOPP_UNUSED(params);
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m_rk.New(16*17); // round keys
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m_w.New(4*7); // w0, w1, w2, w3, t and u
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byte *rk = m_rk.data();
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int Q, q, R, r;
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switch (keylen)
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{
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case 16:
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R = r = m_rounds = 12;
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Q = q = 0;
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break;
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case 32:
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R = r = m_rounds = 16;
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Q = q = 2;
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break;
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case 24:
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R = r = m_rounds = 14;
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Q = q = 1;
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break;
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default:
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Q = q = R = r = m_rounds = 0;
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CRYPTOPP_ASSERT(0);
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}
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// w0 has room for 32 bytes. w1-w3 each has room for 16 bytes. t and u are 16 byte temp areas.
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word32 *w0 = m_w.data(), *w1 = m_w.data()+8, *w2 = m_w.data()+12, *w3 = m_w.data()+16, *t = m_w.data()+20;
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GetBlock<word32, BigEndian, false>block(key);
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block(w0[0])(w0[1])(w0[2])(w0[3]);
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t[0]=w0[0]^KRK[q][0]; t[1]=w0[1]^KRK[q][1];
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t[2]=w0[2]^KRK[q][2]; t[3]=w0[3]^KRK[q][3];
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ARIA_FO;
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if (keylen == 32)
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{
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block(w1[0])(w1[1])(w1[2])(w1[3]);
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}
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else if (keylen == 24)
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{
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block(w1[0])(w1[1]); w1[2] = w1[3] = 0;
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}
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else
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{
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w1[0]=w1[1]=w1[2]=w1[3]=0;
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}
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w1[0]^=t[0]; w1[1]^=t[1]; w1[2]^=t[2]; w1[3]^=t[3];
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::memcpy(t, w1, 16);
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q = (q==2) ? 0 : (q+1);
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t[0]^=KRK[q][0]; t[1]^=KRK[q][1]; t[2]^=KRK[q][2]; t[3]^=KRK[q][3];
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ARIA_FE;
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t[0]^=w0[0]; t[1]^=w0[1]; t[2]^=w0[2]; t[3]^=w0[3];
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::memcpy(w2, t, 16);
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q = (q==2) ? 0 : (q+1);
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t[0]^=KRK[q][0]; t[1]^=KRK[q][1]; t[2]^=KRK[q][2]; t[3]^=KRK[q][3];
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ARIA_FO;
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w3[0]=t[0]^w1[0]; w3[1]=t[1]^w1[1]; w3[2]=t[2]^w1[2]; w3[3]=t[3]^w1[3];
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#if CRYPTOPP_ARM_NEON_AVAILABLE
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if (HasNEON())
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{
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ARIA_UncheckedSetKey_Schedule_NEON(rk, m_w, keylen);
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}
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else
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#endif // CRYPTOPP_ARM_NEON_AVAILABLE
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{
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ARIA_GSRK<19>(w0, w1, rk + 0);
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ARIA_GSRK<19>(w1, w2, rk + 16);
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ARIA_GSRK<19>(w2, w3, rk + 32);
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ARIA_GSRK<19>(w3, w0, rk + 48);
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ARIA_GSRK<31>(w0, w1, rk + 64);
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ARIA_GSRK<31>(w1, w2, rk + 80);
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ARIA_GSRK<31>(w2, w3, rk + 96);
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ARIA_GSRK<31>(w3, w0, rk + 112);
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ARIA_GSRK<67>(w0, w1, rk + 128);
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ARIA_GSRK<67>(w1, w2, rk + 144);
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ARIA_GSRK<67>(w2, w3, rk + 160);
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ARIA_GSRK<67>(w3, w0, rk + 176);
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ARIA_GSRK<97>(w0, w1, rk + 192);
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if (keylen > 16)
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{
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ARIA_GSRK<97>(w1, w2, rk + 208);
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ARIA_GSRK<97>(w2, w3, rk + 224);
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if (keylen > 24)
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{
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ARIA_GSRK< 97>(w3, w0, rk + 240);
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ARIA_GSRK<109>(w0, w1, rk + 256);
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}
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}
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}
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// Decryption operation
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if (!IsForwardTransformation())
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{
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word32 *a, *z, *s;
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rk = m_rk.data();
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r = R; q = Q;
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a=UINT32_CAST(rk); s=m_w.data()+24; z=a+r*4;
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::memcpy(t, a, 16); ::memcpy(a, z, 16); ::memcpy(z, t, 16);
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a+=4; z-=4;
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for (; a<z; a+=4, z-=4)
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{
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ARIA_M(a[0],t[0]); ARIA_M(a[1],t[1]); ARIA_M(a[2],t[2]); ARIA_M(a[3],t[3]);
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ARIA_MM(t[0],t[1],t[2],t[3]); ARIA_P(t[0],t[1],t[2],t[3]); ARIA_MM(t[0],t[1],t[2],t[3]);
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::memcpy(s, t, 16);
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ARIA_M(z[0],t[0]); ARIA_M(z[1],t[1]); ARIA_M(z[2],t[2]); ARIA_M(z[3],t[3]);
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ARIA_MM(t[0],t[1],t[2],t[3]); ARIA_P(t[0],t[1],t[2],t[3]); ARIA_MM(t[0],t[1],t[2],t[3]);
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::memcpy(a, t, 16); ::memcpy(z, s, 16);
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}
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ARIA_M(a[0],t[0]); ARIA_M(a[1],t[1]); ARIA_M(a[2],t[2]); ARIA_M(a[3],t[3]);
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ARIA_MM(t[0],t[1],t[2],t[3]); ARIA_P(t[0],t[1],t[2],t[3]); ARIA_MM(t[0],t[1],t[2],t[3]);
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::memcpy(z, t, 16);
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}
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// Silence warnings
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CRYPTOPP_UNUSED(Q); CRYPTOPP_UNUSED(R);
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CRYPTOPP_UNUSED(q); CRYPTOPP_UNUSED(r);
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}
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void ARIA::Base::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
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{
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const byte *rk = reinterpret_cast<const byte*>(m_rk.data());
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word32 *t = const_cast<word32*>(m_w.data()+20);
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// Timing attack countermeasure. See comments in Rijndael for more details.
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// We used Yun's 32-bit implementation, so we use words rather than bytes.
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const int cacheLineSize = GetCacheLineSize();
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unsigned int i;
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volatile word32 _u = 0;
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word32 u = _u;
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for (i=0; i<COUNTOF(S1); i+=cacheLineSize/(sizeof(S1[0])))
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u |= *(S1+i);
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t[0] |= u;
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GetBlock<word32, BigEndian>block(inBlock);
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block(t[0])(t[1])(t[2])(t[3]);
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if (m_rounds > 12) {
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ARIA_KXL; rk+= 16; ARIA_FO;
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ARIA_KXL; rk+= 16; ARIA_FE;
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}
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if (m_rounds > 14) {
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ARIA_KXL; rk+= 16; ARIA_FO;
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ARIA_KXL; rk+= 16; ARIA_FE;
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}
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ARIA_KXL; rk+= 16; ARIA_FO; ARIA_KXL; rk+= 16; ARIA_FE;
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ARIA_KXL; rk+= 16; ARIA_FO; ARIA_KXL; rk+= 16; ARIA_FE;
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ARIA_KXL; rk+= 16; ARIA_FO; ARIA_KXL; rk+= 16; ARIA_FE;
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ARIA_KXL; rk+= 16; ARIA_FO; ARIA_KXL; rk+= 16; ARIA_FE;
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ARIA_KXL; rk+= 16; ARIA_FO; ARIA_KXL; rk+= 16; ARIA_FE;
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ARIA_KXL; rk+= 16; ARIA_FO; ARIA_KXL; rk+= 16;
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#if CRYPTOPP_ENABLE_ARIA_SSSE3_INTRINSICS
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if (HasSSSE3())
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{
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ARIA_ProcessAndXorBlock_SSSE3(xorBlock, outBlock, rk, t);
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return;
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}
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else
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#endif // CRYPTOPP_ENABLE_ARIA_SSSE3_INTRINSICS
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#if (CRYPTOPP_ARM_NEON_AVAILABLE)
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if (HasNEON())
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{
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ARIA_ProcessAndXorBlock_NEON(xorBlock, outBlock, rk, t);
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return;
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}
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else
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#endif // CRYPTOPP_ARM_NEON_AVAILABLE
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#if (CRYPTOPP_LITTLE_ENDIAN)
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{
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outBlock[ 0] = (byte)(X1[ARIA_BRF(t[0],3)] ) ^ rk[ 3];
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outBlock[ 1] = (byte)(X2[ARIA_BRF(t[0],2)]>>8) ^ rk[ 2];
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outBlock[ 2] = (byte)(S1[ARIA_BRF(t[0],1)] ) ^ rk[ 1];
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outBlock[ 3] = (byte)(S2[ARIA_BRF(t[0],0)] ) ^ rk[ 0];
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outBlock[ 4] = (byte)(X1[ARIA_BRF(t[1],3)] ) ^ rk[ 7];
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outBlock[ 5] = (byte)(X2[ARIA_BRF(t[1],2)]>>8) ^ rk[ 6];
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outBlock[ 6] = (byte)(S1[ARIA_BRF(t[1],1)] ) ^ rk[ 5];
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outBlock[ 7] = (byte)(S2[ARIA_BRF(t[1],0)] ) ^ rk[ 4];
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outBlock[ 8] = (byte)(X1[ARIA_BRF(t[2],3)] ) ^ rk[11];
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outBlock[ 9] = (byte)(X2[ARIA_BRF(t[2],2)]>>8) ^ rk[10];
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outBlock[10] = (byte)(S1[ARIA_BRF(t[2],1)] ) ^ rk[ 9];
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outBlock[11] = (byte)(S2[ARIA_BRF(t[2],0)] ) ^ rk[ 8];
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outBlock[12] = (byte)(X1[ARIA_BRF(t[3],3)] ) ^ rk[15];
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outBlock[13] = (byte)(X2[ARIA_BRF(t[3],2)]>>8) ^ rk[14];
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outBlock[14] = (byte)(S1[ARIA_BRF(t[3],1)] ) ^ rk[13];
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outBlock[15] = (byte)(S2[ARIA_BRF(t[3],0)] ) ^ rk[12];
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}
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#else
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{
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outBlock[ 0] = (byte)(X1[ARIA_BRF(t[0],3)] ) ^ rk[ 0];
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outBlock[ 1] = (byte)(X2[ARIA_BRF(t[0],2)]>>8) ^ rk[ 1];
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outBlock[ 2] = (byte)(S1[ARIA_BRF(t[0],1)] ) ^ rk[ 2];
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outBlock[ 3] = (byte)(S2[ARIA_BRF(t[0],0)] ) ^ rk[ 3];
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outBlock[ 4] = (byte)(X1[ARIA_BRF(t[1],3)] ) ^ rk[ 4];
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outBlock[ 5] = (byte)(X2[ARIA_BRF(t[1],2)]>>8) ^ rk[ 5];
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outBlock[ 6] = (byte)(S1[ARIA_BRF(t[1],1)] ) ^ rk[ 6];
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outBlock[ 7] = (byte)(S2[ARIA_BRF(t[1],0)] ) ^ rk[ 7];
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outBlock[ 8] = (byte)(X1[ARIA_BRF(t[2],3)] ) ^ rk[ 8];
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outBlock[ 9] = (byte)(X2[ARIA_BRF(t[2],2)]>>8) ^ rk[ 9];
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outBlock[10] = (byte)(S1[ARIA_BRF(t[2],1)] ) ^ rk[10];
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outBlock[11] = (byte)(S2[ARIA_BRF(t[2],0)] ) ^ rk[11];
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outBlock[12] = (byte)(X1[ARIA_BRF(t[3],3)] ) ^ rk[12];
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outBlock[13] = (byte)(X2[ARIA_BRF(t[3],2)]>>8) ^ rk[13];
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outBlock[14] = (byte)(S1[ARIA_BRF(t[3],1)] ) ^ rk[14];
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outBlock[15] = (byte)(S2[ARIA_BRF(t[3],0)] ) ^ rk[15];
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}
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#endif // CRYPTOPP_LITTLE_ENDIAN
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if (xorBlock != NULLPTR)
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for (unsigned int n=0; n<ARIA::BLOCKSIZE; ++n)
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outBlock[n] ^= xorBlock[n];
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}
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NAMESPACE_END
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