Camellia using GFNI

camellia.cpp

#include <botan/internal/simd_avx2.h>
#include <botan/internal/simd_avx2_gfni.h>
#include <immintrin.h>
#include <botan/hex.h>
#include <botan/system_rng.h>

namespace Botan {

SIMD_8x32 camellia_s1(SIMD_8x32 x) {
   constexpr uint64_t pre_a = gfni_matrix(R"(
1 1 1 0 1 1 0 1
0 0 1 1 0 0 1 0
1 1 0 1 0 0 0 0
1 0 1 1 0 0 1 1
0 0 0 0 1 1 0 0
1 0 1 0 0 1 0 0
0 0 1 0 1 1 0 0
1 0 0 0 0 1 1 0)");

   constexpr uint8_t pre_c = 0b01000101;

   constexpr uint64_t post_a = gfni_matrix(R"(
0 0 0 0 0 0 0 1
0 1 1 0 0 1 1 0
1 0 1 1 1 1 1 0
0 0 0 1 1 0 1 1
1 0 0 0 1 1 1 0
0 1 0 1 1 1 1 0
0 1 1 1 1 1 1 1
0 0 0 1 1 1 0 0
)");

   constexpr uint8_t post_c = 0b01101110;

   auto y = gf2p8affine<pre_a, pre_c>(x);
   return gf2p8affineinv<post_a, post_c>(y);
}


SIMD_8x32 camellia_s2(SIMD_8x32 x) {
   constexpr uint64_t pre_a = gfni_matrix(R"(
1 1 1 0 1 1 0 1
0 0 1 1 0 0 1 0
1 1 0 1 0 0 0 0
1 0 1 1 0 0 1 1
0 0 0 0 1 1 0 0
1 0 1 0 0 1 0 0
0 0 1 0 1 1 0 0
1 0 0 0 0 1 1 0)");

   constexpr uint8_t pre_c = 0b01000101;

   constexpr uint64_t post_a = gfni_matrix(R"(
0 0 0 1 1 1 0 0
0 0 0 0 0 0 0 1
0 1 1 0 0 1 1 0
1 0 1 1 1 1 1 0
0 0 0 1 1 0 1 1
1 0 0 0 1 1 1 0
0 1 0 1 1 1 1 0
0 1 1 1 1 1 1 1
)");

   constexpr uint8_t post_c = 0b11011100;

   auto y = gf2p8affine<pre_a, pre_c>(x);
   return gf2p8affineinv<post_a, post_c>(y);
}

SIMD_8x32 camellia_s3(SIMD_8x32 x) {
   constexpr uint64_t pre_a = gfni_matrix(R"(
1 1 1 0 1 1 0 1
0 0 1 1 0 0 1 0
1 1 0 1 0 0 0 0
1 0 1 1 0 0 1 1
0 0 0 0 1 1 0 0
1 0 1 0 0 1 0 0
0 0 1 0 1 1 0 0
1 0 0 0 0 1 1 0)");

   constexpr uint8_t pre_c = 0b01000101;

   constexpr uint64_t post_a = gfni_matrix(R"(
0 1 1 0 0 1 1 0
1 0 1 1 1 1 1 0
0 0 0 1 1 0 1 1
1 0 0 0 1 1 1 0
0 1 0 1 1 1 1 0
0 1 1 1 1 1 1 1
0 0 0 1 1 1 0 0
0 0 0 0 0 0 0 1
)");

   constexpr uint8_t post_c = 0b00110111;

   auto y = gf2p8affine<pre_a, pre_c>(x);
   return gf2p8affineinv<post_a, post_c>(y);
}

SIMD_8x32 camellia_s4(SIMD_8x32 x) {
   constexpr uint64_t pre_a = gfni_matrix(R"(
1 1 0 1 1 0 1 1
0 1 1 0 0 1 0 0
1 0 1 0 0 0 0 1
0 1 1 0 0 1 1 1
0 0 0 1 1 0 0 0
0 1 0 0 1 0 0 1
0 1 0 1 1 0 0 0
0 0 0 0 1 1 0 1)");

   constexpr uint8_t pre_c = 0b01000101;

   constexpr uint64_t post_a = gfni_matrix(R"(
0 0 0 0 0 0 0 1
0 1 1 0 0 1 1 0
1 0 1 1 1 1 1 0
0 0 0 1 1 0 1 1
1 0 0 0 1 1 1 0
0 1 0 1 1 1 1 0
0 1 1 1 1 1 1 1
0 0 0 1 1 1 0 0
)");

   constexpr uint8_t post_c = 0b01101110;

   auto y = gf2p8affine<pre_a, pre_c>(x);
   return gf2p8affineinv<post_a, post_c>(y);
}

SIMD_8x32 camellia_s1234(SIMD_8x32 x) {
   constexpr uint64_t pre123_a = gfni_matrix(R"(
1 1 1 0 1 1 0 1
0 0 1 1 0 0 1 0
1 1 0 1 0 0 0 0
1 0 1 1 0 0 1 1
0 0 0 0 1 1 0 0
1 0 1 0 0 1 0 0
0 0 1 0 1 1 0 0
1 0 0 0 0 1 1 0)");

   constexpr uint64_t pre4_a = gfni_matrix(R"(
1 1 0 1 1 0 1 1
0 1 1 0 0 1 0 0
1 0 1 0 0 0 0 1
0 1 1 0 0 1 1 1
0 0 0 1 1 0 0 0
0 1 0 0 1 0 0 1
0 1 0 1 1 0 0 0
0 0 0 0 1 1 0 1)");

   constexpr uint8_t pre_c = 0b01000101;
   auto pre = _mm256_set_epi64x(pre4_a, pre123_a, pre123_a, pre123_a);

   auto y = _mm256_gf2p8affine_epi64_epi8(x.raw(), pre, pre_c);

   constexpr uint64_t post2_a = gfni_matrix(R"(
0 0 0 1 1 1 0 0
0 0 0 0 0 0 0 1
0 1 1 0 0 1 1 0
1 0 1 1 1 1 1 0
0 0 0 1 1 0 1 1
1 0 0 0 1 1 1 0
0 1 0 1 1 1 1 0
0 1 1 1 1 1 1 1
)");


   constexpr uint64_t post3_a = gfni_matrix(R"(
0 1 1 0 0 1 1 0
1 0 1 1 1 1 1 0
0 0 0 1 1 0 1 1
1 0 0 0 1 1 1 0
0 1 0 1 1 1 1 0
0 1 1 1 1 1 1 1
0 0 0 1 1 1 0 0
0 0 0 0 0 0 0 1
)");

   constexpr uint64_t post14_a = gfni_matrix(R"(
0 0 0 0 0 0 0 1
0 1 1 0 0 1 1 0
1 0 1 1 1 1 1 0
0 0 0 1 1 0 1 1
1 0 0 0 1 1 1 0
0 1 0 1 1 1 1 0
0 1 1 1 1 1 1 1
0 0 0 1 1 1 0 0
)");

   //constexpr uint8_t post14_c = 0b01101110;

   const auto post_a = _mm256_set_epi64x(post14_a, post3_a, post2_a, post14_a);

   const auto post_c = _mm256_set_epi64x(0x6E6E6E6E6E6E6E6E, 0x3737373737373737, 0xDCDCDCDCDCDCDCDC, 0x6E6E6E6E6E6E6E6E);

   return SIMD_8x32(_mm256_xor_si256(post_c, _mm256_gf2p8affineinv_epi64_epi8(y, post_a, 0)));
}



alignas(256) const uint8_t SBOX1[256] = {
   0x70, 0x82, 0x2C, 0xEC, 0xB3, 0x27, 0xC0, 0xE5, 0xE4, 0x85, 0x57, 0x35, 0xEA, 0x0C, 0xAE, 0x41, 0x23, 0xEF, 0x6B,
   0x93, 0x45, 0x19, 0xA5, 0x21, 0xED, 0x0E, 0x4F, 0x4E, 0x1D, 0x65, 0x92, 0xBD, 0x86, 0xB8, 0xAF, 0x8F, 0x7C, 0xEB,
   0x1F, 0xCE, 0x3E, 0x30, 0xDC, 0x5F, 0x5E, 0xC5, 0x0B, 0x1A, 0xA6, 0xE1, 0x39, 0xCA, 0xD5, 0x47, 0x5D, 0x3D, 0xD9,
   0x01, 0x5A, 0xD6, 0x51, 0x56, 0x6C, 0x4D, 0x8B, 0x0D, 0x9A, 0x66, 0xFB, 0xCC, 0xB0, 0x2D, 0x74, 0x12, 0x2B, 0x20,
   0xF0, 0xB1, 0x84, 0x99, 0xDF, 0x4C, 0xCB, 0xC2, 0x34, 0x7E, 0x76, 0x05, 0x6D, 0xB7, 0xA9, 0x31, 0xD1, 0x17, 0x04,
   0xD7, 0x14, 0x58, 0x3A, 0x61, 0xDE, 0x1B, 0x11, 0x1C, 0x32, 0x0F, 0x9C, 0x16, 0x53, 0x18, 0xF2, 0x22, 0xFE, 0x44,
   0xCF, 0xB2, 0xC3, 0xB5, 0x7A, 0x91, 0x24, 0x08, 0xE8, 0xA8, 0x60, 0xFC, 0x69, 0x50, 0xAA, 0xD0, 0xA0, 0x7D, 0xA1,
   0x89, 0x62, 0x97, 0x54, 0x5B, 0x1E, 0x95, 0xE0, 0xFF, 0x64, 0xD2, 0x10, 0xC4, 0x00, 0x48, 0xA3, 0xF7, 0x75, 0xDB,
   0x8A, 0x03, 0xE6, 0xDA, 0x09, 0x3F, 0xDD, 0x94, 0x87, 0x5C, 0x83, 0x02, 0xCD, 0x4A, 0x90, 0x33, 0x73, 0x67, 0xF6,
   0xF3, 0x9D, 0x7F, 0xBF, 0xE2, 0x52, 0x9B, 0xD8, 0x26, 0xC8, 0x37, 0xC6, 0x3B, 0x81, 0x96, 0x6F, 0x4B, 0x13, 0xBE,
   0x63, 0x2E, 0xE9, 0x79, 0xA7, 0x8C, 0x9F, 0x6E, 0xBC, 0x8E, 0x29, 0xF5, 0xF9, 0xB6, 0x2F, 0xFD, 0xB4, 0x59, 0x78,
   0x98, 0x06, 0x6A, 0xE7, 0x46, 0x71, 0xBA, 0xD4, 0x25, 0xAB, 0x42, 0x88, 0xA2, 0x8D, 0xFA, 0x72, 0x07, 0xB9, 0x55,
   0xF8, 0xEE, 0xAC, 0x0A, 0x36, 0x49, 0x2A, 0x68, 0x3C, 0x38, 0xF1, 0xA4, 0x40, 0x28, 0xD3, 0x7B, 0xBB, 0xC9, 0x43,
   0xC1, 0x15, 0xE3, 0xAD, 0xF4, 0x77, 0xC7, 0x80, 0x9E};

// SBOX2[x] = rotl<1>(SBOX1[x])
alignas(256) const uint8_t SBOX2[256] = {
   0xE0, 0x05, 0x58, 0xD9, 0x67, 0x4E, 0x81, 0xCB, 0xC9, 0x0B, 0xAE, 0x6A, 0xD5, 0x18, 0x5D, 0x82, 0x46, 0xDF, 0xD6,
   0x27, 0x8A, 0x32, 0x4B, 0x42, 0xDB, 0x1C, 0x9E, 0x9C, 0x3A, 0xCA, 0x25, 0x7B, 0x0D, 0x71, 0x5F, 0x1F, 0xF8, 0xD7,
   0x3E, 0x9D, 0x7C, 0x60, 0xB9, 0xBE, 0xBC, 0x8B, 0x16, 0x34, 0x4D, 0xC3, 0x72, 0x95, 0xAB, 0x8E, 0xBA, 0x7A, 0xB3,
   0x02, 0xB4, 0xAD, 0xA2, 0xAC, 0xD8, 0x9A, 0x17, 0x1A, 0x35, 0xCC, 0xF7, 0x99, 0x61, 0x5A, 0xE8, 0x24, 0x56, 0x40,
   0xE1, 0x63, 0x09, 0x33, 0xBF, 0x98, 0x97, 0x85, 0x68, 0xFC, 0xEC, 0x0A, 0xDA, 0x6F, 0x53, 0x62, 0xA3, 0x2E, 0x08,
   0xAF, 0x28, 0xB0, 0x74, 0xC2, 0xBD, 0x36, 0x22, 0x38, 0x64, 0x1E, 0x39, 0x2C, 0xA6, 0x30, 0xE5, 0x44, 0xFD, 0x88,
   0x9F, 0x65, 0x87, 0x6B, 0xF4, 0x23, 0x48, 0x10, 0xD1, 0x51, 0xC0, 0xF9, 0xD2, 0xA0, 0x55, 0xA1, 0x41, 0xFA, 0x43,
   0x13, 0xC4, 0x2F, 0xA8, 0xB6, 0x3C, 0x2B, 0xC1, 0xFF, 0xC8, 0xA5, 0x20, 0x89, 0x00, 0x90, 0x47, 0xEF, 0xEA, 0xB7,
   0x15, 0x06, 0xCD, 0xB5, 0x12, 0x7E, 0xBB, 0x29, 0x0F, 0xB8, 0x07, 0x04, 0x9B, 0x94, 0x21, 0x66, 0xE6, 0xCE, 0xED,
   0xE7, 0x3B, 0xFE, 0x7F, 0xC5, 0xA4, 0x37, 0xB1, 0x4C, 0x91, 0x6E, 0x8D, 0x76, 0x03, 0x2D, 0xDE, 0x96, 0x26, 0x7D,
   0xC6, 0x5C, 0xD3, 0xF2, 0x4F, 0x19, 0x3F, 0xDC, 0x79, 0x1D, 0x52, 0xEB, 0xF3, 0x6D, 0x5E, 0xFB, 0x69, 0xB2, 0xF0,
   0x31, 0x0C, 0xD4, 0xCF, 0x8C, 0xE2, 0x75, 0xA9, 0x4A, 0x57, 0x84, 0x11, 0x45, 0x1B, 0xF5, 0xE4, 0x0E, 0x73, 0xAA,
   0xF1, 0xDD, 0x59, 0x14, 0x6C, 0x92, 0x54, 0xD0, 0x78, 0x70, 0xE3, 0x49, 0x80, 0x50, 0xA7, 0xF6, 0x77, 0x93, 0x86,
   0x83, 0x2A, 0xC7, 0x5B, 0xE9, 0xEE, 0x8F, 0x01, 0x3D};
   
   // SBOX3[x] = rotl<7>(SBOX1[x])
alignas(256) const uint8_t SBOX3[256] = {
   0x38, 0x41, 0x16, 0x76, 0xD9, 0x93, 0x60, 0xF2, 0x72, 0xC2, 0xAB, 0x9A, 0x75, 0x06, 0x57, 0xA0, 0x91, 0xF7, 0xB5,
   0xC9, 0xA2, 0x8C, 0xD2, 0x90, 0xF6, 0x07, 0xA7, 0x27, 0x8E, 0xB2, 0x49, 0xDE, 0x43, 0x5C, 0xD7, 0xC7, 0x3E, 0xF5,
   0x8F, 0x67, 0x1F, 0x18, 0x6E, 0xAF, 0x2F, 0xE2, 0x85, 0x0D, 0x53, 0xF0, 0x9C, 0x65, 0xEA, 0xA3, 0xAE, 0x9E, 0xEC,
   0x80, 0x2D, 0x6B, 0xA8, 0x2B, 0x36, 0xA6, 0xC5, 0x86, 0x4D, 0x33, 0xFD, 0x66, 0x58, 0x96, 0x3A, 0x09, 0x95, 0x10,
   0x78, 0xD8, 0x42, 0xCC, 0xEF, 0x26, 0xE5, 0x61, 0x1A, 0x3F, 0x3B, 0x82, 0xB6, 0xDB, 0xD4, 0x98, 0xE8, 0x8B, 0x02,
   0xEB, 0x0A, 0x2C, 0x1D, 0xB0, 0x6F, 0x8D, 0x88, 0x0E, 0x19, 0x87, 0x4E, 0x0B, 0xA9, 0x0C, 0x79, 0x11, 0x7F, 0x22,
   0xE7, 0x59, 0xE1, 0xDA, 0x3D, 0xC8, 0x12, 0x04, 0x74, 0x54, 0x30, 0x7E, 0xB4, 0x28, 0x55, 0x68, 0x50, 0xBE, 0xD0,
   0xC4, 0x31, 0xCB, 0x2A, 0xAD, 0x0F, 0xCA, 0x70, 0xFF, 0x32, 0x69, 0x08, 0x62, 0x00, 0x24, 0xD1, 0xFB, 0xBA, 0xED,
   0x45, 0x81, 0x73, 0x6D, 0x84, 0x9F, 0xEE, 0x4A, 0xC3, 0x2E, 0xC1, 0x01, 0xE6, 0x25, 0x48, 0x99, 0xB9, 0xB3, 0x7B,
   0xF9, 0xCE, 0xBF, 0xDF, 0x71, 0x29, 0xCD, 0x6C, 0x13, 0x64, 0x9B, 0x63, 0x9D, 0xC0, 0x4B, 0xB7, 0xA5, 0x89, 0x5F,
   0xB1, 0x17, 0xF4, 0xBC, 0xD3, 0x46, 0xCF, 0x37, 0x5E, 0x47, 0x94, 0xFA, 0xFC, 0x5B, 0x97, 0xFE, 0x5A, 0xAC, 0x3C,
   0x4C, 0x03, 0x35, 0xF3, 0x23, 0xB8, 0x5D, 0x6A, 0x92, 0xD5, 0x21, 0x44, 0x51, 0xC6, 0x7D, 0x39, 0x83, 0xDC, 0xAA,
   0x7C, 0x77, 0x56, 0x05, 0x1B, 0xA4, 0x15, 0x34, 0x1E, 0x1C, 0xF8, 0x52, 0x20, 0x14, 0xE9, 0xBD, 0xDD, 0xE4, 0xA1,
   0xE0, 0x8A, 0xF1, 0xD6, 0x7A, 0xBB, 0xE3, 0x40, 0x4F};

// SBOX4[x] = SBOX1[rotl<1>(x)]
alignas(256) const uint8_t SBOX4[256] = {
   0x70, 0x2C, 0xB3, 0xC0, 0xE4, 0x57, 0xEA, 0xAE, 0x23, 0x6B, 0x45, 0xA5, 0xED, 0x4F, 0x1D, 0x92, 0x86, 0xAF, 0x7C,
   0x1F, 0x3E, 0xDC, 0x5E, 0x0B, 0xA6, 0x39, 0xD5, 0x5D, 0xD9, 0x5A, 0x51, 0x6C, 0x8B, 0x9A, 0xFB, 0xB0, 0x74, 0x2B,
   0xF0, 0x84, 0xDF, 0xCB, 0x34, 0x76, 0x6D, 0xA9, 0xD1, 0x04, 0x14, 0x3A, 0xDE, 0x11, 0x32, 0x9C, 0x53, 0xF2, 0xFE,
   0xCF, 0xC3, 0x7A, 0x24, 0xE8, 0x60, 0x69, 0xAA, 0xA0, 0xA1, 0x62, 0x54, 0x1E, 0xE0, 0x64, 0x10, 0x00, 0xA3, 0x75,
   0x8A, 0xE6, 0x09, 0xDD, 0x87, 0x83, 0xCD, 0x90, 0x73, 0xF6, 0x9D, 0xBF, 0x52, 0xD8, 0xC8, 0xC6, 0x81, 0x6F, 0x13,
   0x63, 0xE9, 0xA7, 0x9F, 0xBC, 0x29, 0xF9, 0x2F, 0xB4, 0x78, 0x06, 0xE7, 0x71, 0xD4, 0xAB, 0x88, 0x8D, 0x72, 0xB9,
   0xF8, 0xAC, 0x36, 0x2A, 0x3C, 0xF1, 0x40, 0xD3, 0xBB, 0x43, 0x15, 0xAD, 0x77, 0x80, 0x82, 0xEC, 0x27, 0xE5, 0x85,
   0x35, 0x0C, 0x41, 0xEF, 0x93, 0x19, 0x21, 0x0E, 0x4E, 0x65, 0xBD, 0xB8, 0x8F, 0xEB, 0xCE, 0x30, 0x5F, 0xC5, 0x1A,
   0xE1, 0xCA, 0x47, 0x3D, 0x01, 0xD6, 0x56, 0x4D, 0x0D, 0x66, 0xCC, 0x2D, 0x12, 0x20, 0xB1, 0x99, 0x4C, 0xC2, 0x7E,
   0x05, 0xB7, 0x31, 0x17, 0xD7, 0x58, 0x61, 0x1B, 0x1C, 0x0F, 0x16, 0x18, 0x22, 0x44, 0xB2, 0xB5, 0x91, 0x08, 0xA8,
   0xFC, 0x50, 0xD0, 0x7D, 0x89, 0x97, 0x5B, 0x95, 0xFF, 0xD2, 0xC4, 0x48, 0xF7, 0xDB, 0x03, 0xDA, 0x3F, 0x94, 0x5C,
   0x02, 0x4A, 0x33, 0x67, 0xF3, 0x7F, 0xE2, 0x9B, 0x26, 0x37, 0x3B, 0x96, 0x4B, 0xBE, 0x2E, 0x79, 0x8C, 0x6E, 0x8E,
   0xF5, 0xB6, 0xFD, 0x59, 0x98, 0x6A, 0x46, 0xBA, 0x25, 0x42, 0xA2, 0xFA, 0x07, 0x55, 0xEE, 0x0A, 0x49, 0x68, 0x38,
   0xA4, 0x28, 0x7B, 0xC9, 0xC1, 0xE3, 0xF4, 0xC7, 0x9E};
   
   }
   


int main() {
   using namespace Botan;

   for(size_t i = 0; i != 8; ++i) {
      uint8_t input[32];
      uint8_t exp[32];
      for(size_t j = 0; j != 32; ++j) {
         input[j] = 32*i + j;

         if(j < 8) {
            exp[j] = SBOX1[32*i + j];
         } else if(j < 16) {
            exp[j] = SBOX2[32*i + j];
         } else if(j < 24) {
            exp[j] = SBOX3[32*i + j];
         } else {
            exp[j] = SBOX4[32*i + j];
         }
      }

      SIMD_8x32 x = SIMD_8x32::load_le(input);

      x = camellia_s1234(x);

      uint8_t gfni[32];
      x.store_le(gfni);

      //printf("%s\n", hex_encode(input, 32).c_str());
      printf("%s\n", hex_encode(exp, 32).c_str());
      printf("%s\n", hex_encode(gfni, 32).c_str());

      bool bad = false;
      for(size_t j = 0; j != 32; ++j) {
         printf("%02X", gfni[j] ^ exp[j]);
         if(gfni[j] != exp[j]) {
            printf("bad at %d\n", j);
            bad = true;
         }
      }
      printf("\n");

      if(bad) {
         return 1;
      }
   }

   printf("ok\n");
}