yggm/libs/keymanip.cu

#include <keymanip.cuh>
__device__ ds64 ktos(const unsigned char* key) noexcept {
    ds64 str;
    const char* hexDigits = "0123456789abcdef";
#pragma unroll 32
    for (unsigned char i = 0; i < 32; i++) {
        str.data[2 * i] = hexDigits[key[i] >> 4];
        str.data[2 * i + 1] = hexDigits[key[i] & 0x0F];
    }
    str.data[65] = '\0';
    return str;
}
__device__ ds46 getAddr(const unsigned char rawAddr[16]) noexcept {
    ds46 addrStr;
    const char* hexDigits = "0123456789abcdef";
    unsigned pos = 0;
#pragma unroll 8
    for (unsigned char group = 0; group < 8; group++) {
        int idx = group * 2;
        addrStr.data[pos++] = hexDigits[rawAddr[idx] >> 4];
        addrStr.data[pos++] = hexDigits[rawAddr[idx] & 0x0F];
        addrStr.data[pos++] = hexDigits[rawAddr[idx + 1] >> 4];
        addrStr.data[pos++] = hexDigits[rawAddr[idx + 1] & 0x0F];
        if (group < 7) { addrStr.data[pos++] = ':'; }
    }
    addrStr.data[pos] = '\0';
    return addrStr;
}
__device__ void getRawAddress(int lErase, Key32& InvertedPublicKey, Addr16& rawAddr) noexcept {
    lErase++;
    const int bitsToShift = lErase & 7;
    const int start = lErase >> 3;
    if (bitsToShift) {
    #pragma unroll
        for (int i = start; i < start + 15; i++) {
            InvertedPublicKey[i] = static_cast<unsigned char>((InvertedPublicKey[i] << bitsToShift) | (InvertedPublicKey[i + 1] >> (8 - bitsToShift)));
        }
    }
    rawAddr[0] = 0x02;
    rawAddr[1] = static_cast<unsigned char>(lErase - 1);
    memcpy(&rawAddr[2], &InvertedPublicKey[start], 14);
}
__device__ void invertKey(const unsigned char* key, unsigned char* inverted) {
#pragma unroll 32
    for (unsigned char i = 0; i < 32; i++) inverted[i] = key[i] ^ 0xFF;
}