#include #include #include #include #include #include #include #include __device__ unsigned d_high = 0x10; __device__ int parameters(const char* arg) noexcept { if ((cstring_find(arg, "--altitude") == 0 && cstring_length(arg) == 10) || (cstring_find(arg, "-a") == 0 && cstring_length(arg) == 2)) { return 777; } int space_index = cstring_find(arg, " "); if (space_index == -1) return 0; const int substr_start = space_index + 1; char sub_arg[256]; extract_substring(arg, substr_start, sub_arg, 256); if (cstring_find(arg, "--altitude") != -1 || cstring_find(arg, "-a") != -1) { unsigned tmp_high; if (cstring_to_ull(sub_arg, &tmp_high) != 0) return 1; d_high = tmp_high; } return 0; } __global__ void args(char** argv, int argc, int* result) { int err = 0; for (int x = 1; x < argc; x++) { int res = parameters(argv[x]); if (res == 777) { if (++x >= argc) { err = 776; break; } char combined[512]; concat(argv[x - 1], argv[x], combined, 512); if (parameters(combined) != 0) { err = res; break; } } } result[0] = err; } __device__ __forceinline__ unsigned char zeroCounter(unsigned int x) noexcept { return x ? static_cast(__clz(x)) : 32; } __device__ __forceinline__ unsigned char getZeros(const unsigned char* v) noexcept { unsigned char leadZeros = 0; #pragma unroll for (int i = 0; i < 32; i += 4) { unsigned word = (static_cast(v[i]) << 24) | (static_cast(v[i + 1]) << 16) | (static_cast(v[i + 2]) << 8) | (static_cast(v[i + 3])); if (word == 0) leadZeros += 32; else { leadZeros += zeroCounter(word); break; } } return leadZeros; } __global__ void initRand(curandState* rs) { int id = blockIdx.x * blockDim.x + threadIdx.x; curand_init(clock64() + id * 7919ULL, id, 0, &rs[id]); #pragma unroll 10 for (int i = 0; i < 10; i++) { curand(&rs[id]); } } __device__ __forceinline__ void rmbytes(unsigned char* buf, curandState* state) { #pragma unroll 32 for (unsigned long i = 0; i < 32; i++) { buf[i] = curand(state) & 0xFF; } } __global__ void KeyGen(curandState* randStates) { curandState localState = randStates[blockIdx.x * blockDim.x + threadIdx.x]; while (true) { KeysBox32 keys; Key32 seed; rmbytes(seed, &localState); ed25519_keygen(keys.PrivateKey, keys.PublicKey, seed); if (unsigned zeros = getZeros(keys.PublicKey); zeros > atomicMax((unsigned*)&d_high, zeros)) { Addr16 raw; Key32 inv; invertKey(keys.PublicKey, inv); getRawAddress(zeros, inv, raw); printf("\nIPv6:\t%s\nPK:\t%s\nSK:\t%s\n", getAddr(raw).data, ktos(keys.PublicKey).data, ktos(keys.PrivateKey).data); } } } int main(int argc, char* argv[]) { const int thPerBlock = 256; int* d_result, mBpSM, h_high; char** d_argv; cudaDeviceProp prop; curandState* rst; cudaMalloc((void**)&d_result, sizeof(int)); cudaMalloc((void**)&d_argv, argc * sizeof(char*)); for (int i = 0; i < argc; i++) { unsigned long len = strlen(argv[i]) + 1; char* d_str; cudaMalloc((void**)&d_str, len); cudaMemcpy(d_str, argv[i], len, cudaMemcpyHostToDevice); cudaMemcpy(&d_argv[i], &d_str, sizeof(char*), cudaMemcpyHostToDevice); } args<<<1, 1>>>(d_argv, argc, d_result); cudaDeviceSynchronize(); cudaMemcpyFromSymbol(&h_high, d_high, sizeof(unsigned)); cudaGetDeviceProperties(&prop, 0); cudaOccupancyMaxActiveBlocksPerMultiprocessor(&mBpSM, KeyGen, thPerBlock, 0); const int totalTh = mBpSM * prop.multiProcessorCount * thPerBlock; printf("High addrs: 2%02x+\nSMs: %d\nMaxBlocksPerSM: %d\nTotalTh: %d\nBlocksThreads: %d:%d\n", h_high, prop.multiProcessorCount, mBpSM, totalTh, totalTh / thPerBlock, thPerBlock); cudaMalloc(&rst, totalTh * sizeof(curandState)); initRand<<>>(rst); cudaDeviceSynchronize(); KeyGen<<>>(rst); cudaDeviceSynchronize(); cudaFree(rst); return 0; }