auto verify () const {
uint8_t hash[32];
uint8_t target[32] = {};
hash256(hash, this->header);
std::reverse(hash, hash + 32);
const auto bits = this->header.peek<uint32_t>(72);
Block::calculateTarget(target, bits);
return memcmp(hash, target, 32) <= 0;
}
JNIEXPORT jbyteArray JNICALL Java_com_lsh_lshlibrary_MainActivity_LSH256 (JNIEnv *env, jobject obj, jbyteArray data, jint databitlen){
// size_t len= (unsigned int)(*env)->GetByteArrayElements(env, data, 0);
// unsigned char *inputData= (unsigned char*)malloc((int)databitlen/8);
unsigned char *outputData= (unsigned char *)malloc(32*sizeof(unsigned char));
unsigned char *inputData= (unsigned char *)(*env)->GetByteArrayElements(env, data, NULL);
jbyteArray hashval= (*env)->NewByteArray(env, 32);
// strncpy(inputData, (const unsigned char*)data, (int)databitlen/8);
// (*env)->GetByteArrayRegion(env, data, 0, 32, inputData);
hash256(256, inputData, (int)databitlen, outputData);
// (*env)->SetByteArrayRegion(env, hashval, 0, 32, (jbyte*)outputData);
(*env)->ReleaseByteArrayElements(env, hashval, (jbyte*)outputData, 0);
free(inputData);
free(outputData);
return hashval;
}
void debugPrint(std::string const& _indent = "") const { std::cerr << std::hex << hash256() << ":" << std::dec << std::endl; debugPrintBody(_indent); }
void hash256 (uint8_t* dest, const Slice src) { hash256(dest, src.begin, src.length()); }
