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C++ CryptoPP::VecXor方法代码示例

本文整理汇总了C++中CryptoPP::VecXor方法的典型用法代码示例。如果您正苦于以下问题：C++ CryptoPP::VecXor方法的具体用法？C++ CryptoPP::VecXor怎么用？C++ CryptoPP::VecXor使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CryptoPP的用法示例。


在下文中一共展示了CryptoPP::VecXor方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: SPECK64_Dec_Block

void SPECK64_Dec_Block(uint32x4_p &block0, uint32x4_p &block1,
        const word32 *subkeys, unsigned int rounds)
{
#if (CRYPTOPP_BIG_ENDIAN)
    const uint8x16_p m1 = {7,6,5,4, 15,14,13,12, 23,22,21,20, 31,30,29,28};
    const uint8x16_p m2 = {3,2,1,0, 11,10,9,8, 19,18,17,16, 27,26,25,24};
#else
    const uint8x16_p m1 = {3,2,1,0, 11,10,9,8, 19,18,17,16, 27,26,25,24};
    const uint8x16_p m2 = {7,6,5,4, 15,14,13,12, 23,22,21,20, 31,30,29,28};
#endif

    // [A1 A2 A3 A4][B1 B2 B3 B4] ... => [A1 A3 B1 B3][A2 A4 B2 B4] ...
    uint32x4_p x1 = VecPermute(block0, block1, m1);
    uint32x4_p y1 = VecPermute(block0, block1, m2);

    for (int i = static_cast<int>(rounds-1); i >= 0; --i)
    {
#if CRYPTOPP_POWER7_AVAILABLE
        const uint32x4_p rk = vec_splats(subkeys[i]);
#else
        // subkeys has extra elements so memory backs the last subkey
        const uint8x16_p m = {0,1,2,3, 0,1,2,3, 0,1,2,3, 0,1,2,3};
        uint32x4_p rk = VecLoad(subkeys+i);
        rk = VecPermute(rk, rk, m);
#endif

        y1 = VecXor(y1, x1);
        y1 = RotateRight32<3>(y1);

        x1 = VecXor(x1, rk);
        x1 = VecSub(x1, y1);
        x1 = RotateLeft32<8>(x1);
    }

#if (CRYPTOPP_BIG_ENDIAN)
    const uint8x16_p m3 = {19,18,17,16, 3,2,1,0, 23,22,21,20, 7,6,5,4};
    const uint8x16_p m4 = {27,26,25,24, 11,10,9,8, 31,30,29,28, 15,14,13,12};
#else
    const uint8x16_p m3 = {3,2,1,0, 19,18,17,16, 7,6,5,4, 23,22,21,20};
    const uint8x16_p m4 = {11,10,9,8, 27,26,25,24, 15,14,13,12, 31,30,29,28};
#endif

    // [A1 A3 B1 B3][A2 A4 B2 B4] => [A1 A2 A3 A4][B1 B2 B3 B4]
    block0 = (uint32x4_p)VecPermute(x1, y1, m3);
    block1 = (uint32x4_p)VecPermute(x1, y1, m4);
}
开发者ID:anonimal，项目名称:cryptopp，代码行数:46，代码来源:speck64_simd.cpp

示例2: SPECK128_Dec_6_Blocks

void SPECK128_Dec_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
            uint32x4_p &block2, uint32x4_p &block3, uint32x4_p &block4,
            uint32x4_p &block5, const word64 *subkeys, unsigned int rounds)
{
#if (CRYPTOPP_BIG_ENDIAN)
    const uint8x16_p m1 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
    const uint8x16_p m2 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
#else
    const uint8x16_p m1 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
    const uint8x16_p m2 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
#endif

    // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
    uint64x2_p x1 = (uint64x2_p)VecPermute(block0, block1, m1);
    uint64x2_p y1 = (uint64x2_p)VecPermute(block0, block1, m2);
    uint64x2_p x2 = (uint64x2_p)VecPermute(block2, block3, m1);
    uint64x2_p y2 = (uint64x2_p)VecPermute(block2, block3, m2);
    uint64x2_p x3 = (uint64x2_p)VecPermute(block4, block5, m1);
    uint64x2_p y3 = (uint64x2_p)VecPermute(block4, block5, m2);

    for (int i = static_cast<int>(rounds-1); i >= 0; --i)
    {
        const uint64x2_p rk = vec_splats((unsigned long long)subkeys[i]);

        y1 = VecXor(y1, x1);
        y2 = VecXor(y2, x2);
        y3 = VecXor(y3, x3);
        y1 = RotateRight64<3>(y1);
        y2 = RotateRight64<3>(y2);
        y3 = RotateRight64<3>(y3);

        x1 = VecXor(x1, rk);
        x2 = VecXor(x2, rk);
        x3 = VecXor(x3, rk);
        x1 = VecSub(x1, y1);
        x2 = VecSub(x2, y2);
        x3 = VecSub(x3, y3);
        x1 = RotateLeft64<8>(x1);
        x2 = RotateLeft64<8>(x2);
        x3 = RotateLeft64<8>(x3);
    }

#if (CRYPTOPP_BIG_ENDIAN)
    const uint8x16_p m3 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
    const uint8x16_p m4 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
#else
    const uint8x16_p m3 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
    const uint8x16_p m4 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
#endif

    // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
    block0 = (uint32x4_p)VecPermute(x1, y1, m3);
    block1 = (uint32x4_p)VecPermute(x1, y1, m4);
    block2 = (uint32x4_p)VecPermute(x2, y2, m3);
    block3 = (uint32x4_p)VecPermute(x2, y2, m4);
    block4 = (uint32x4_p)VecPermute(x3, y3, m3);
    block5 = (uint32x4_p)VecPermute(x3, y3, m4);
}
开发者ID:bonjorno7，项目名称:GAME，代码行数:58，代码来源:speck128_simd.cpp

示例3: SPECK128_Enc_Block

void SPECK128_Enc_Block(uint32x4_p &block, const word64 *subkeys, unsigned int rounds)
{
#if (CRYPTOPP_BIG_ENDIAN)
    const uint8x16_p m1 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
    const uint8x16_p m2 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
#else
    const uint8x16_p m1 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
    const uint8x16_p m2 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
#endif

    // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
    uint64x2_p x1 = (uint64x2_p)VecPermute(block, block, m1);
    uint64x2_p y1 = (uint64x2_p)VecPermute(block, block, m2);

    for (int i=0; i < static_cast<int>(rounds); ++i)
    {
        const uint64x2_p rk = vec_splats((unsigned long long)subkeys[i]);

        x1 = RotateRight64<8>(x1);
        x1 = VecAdd(x1, y1);
        x1 = VecXor(x1, rk);

        y1 = RotateLeft64<3>(y1);
        y1 = VecXor(y1, x1);
    }

#if (CRYPTOPP_BIG_ENDIAN)
    const uint8x16_p m3 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
    //const uint8x16_p m4 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
#else
    const uint8x16_p m3 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
    //const uint8x16_p m4 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
#endif

    // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
    block = (uint32x4_p)VecPermute(x1, y1, m3);
}
开发者ID:bonjorno7，项目名称:GAME，代码行数:37，代码来源:speck128_simd.cpp

示例4: VecXor

inline void SIMON128_Dec_Block(uint32x4_p &block, const word64 *subkeys, unsigned int rounds)
{
#if (CRYPTOPP_BIG_ENDIAN)
    const uint8x16_p m1 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
    const uint8x16_p m2 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
#else
    const uint8x16_p m1 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
    const uint8x16_p m2 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
#endif

    // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
    uint64x2_p x1 = (uint64x2_p)VecPermute(block, block, m1);
    uint64x2_p y1 = (uint64x2_p)VecPermute(block, block, m2);

    if (rounds & 1)
    {
        std::swap(x1, y1);
        const uint64x2_p rk = vec_splats((unsigned long long)subkeys[rounds-1]);
        y1 = VecXor(VecXor(y1, rk), SIMON128_f(x1));
        rounds--;
    }

    for (int i = static_cast<int>(rounds-2); i >= 0; i -= 2)
    {
        const uint64x2_p rk1 = vec_splats((unsigned long long)subkeys[i+1]);
        x1 = VecXor(VecXor(x1, SIMON128_f(y1)), rk1);

        const uint64x2_p rk2 = vec_splats((unsigned long long)subkeys[i]);
        y1 = VecXor(VecXor(y1, SIMON128_f(x1)), rk2);
    }

#if (CRYPTOPP_BIG_ENDIAN)
    const uint8x16_p m3 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
    //const uint8x16_p m4 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
#else
    const uint8x16_p m3 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
    //const uint8x16_p m4 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
#endif

    // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
    block = (uint32x4_p)VecPermute(x1, y1, m3);
}
开发者ID:weidai11，项目名称:cryptopp，代码行数:42，代码来源:simon128_simd.cpp


注：本文中的CryptoPP::VecXor方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。