Examples with BloomFilter com.biglybt.core.util.bloom.BloomFilter used on opensource projects

Example 16 with BloomFilter

use of com.biglybt.core.util.bloom.BloomFilter in project BiglyBT by BiglySoftware.

the class DHTPluginStorageManager method verifyKeyBlock.

protected boolean verifyKeyBlock(keyBlock kb, DHTTransportContact originator) {
    byte[] id = originator == null ? new byte[20] : originator.getID();
    BloomFilter filter = kb_verify_fail_bloom;
    long now = SystemTime.getCurrentTime();
    if (filter == null || kb_verify_fail_bloom_create_time > now || now - kb_verify_fail_bloom_create_time > 30 * 60 * 1000) {
        kb_verify_fail_bloom_create_time = now;
        filter = BloomFilterFactory.createAddOnly(4000);
        kb_verify_fail_bloom = filter;
    }
    if (filter.contains(id)) {
        log.log("KB: request verify denied");
        return (false);
    }
    try {
        Signature verifier = Signature.getInstance("MD5withRSA");
        verifier.initVerify(key_block_public_key);
        verifier.update(kb.getRequest());
        if (!verifier.verify(kb.getCertificate())) {
            log.log("KB: request verify failed for " + DHTLog.getString2(kb.getKey()));
            filter.add(id);
            return (false);
        }
        log.log("KB: request verify ok " + DHTLog.getString2(kb.getKey()) + ", add = " + kb.isAdd() + ", direct = " + kb.isDirect());
        return (true);
    } catch (Throwable e) {
        return (false);
    }
}

Example 17 with BloomFilter

use of com.biglybt.core.util.bloom.BloomFilter in project BiglyBT by BiglySoftware.

the class BloomFilterRotator method serialiseToMap.

protected void serialiseToMap(Map<String, Object> x) {
    synchronized (filters) {
        String cla = this.getClass().getName();
        if (cla.startsWith(BloomFilterImpl.MY_PACKAGE)) {
            cla = cla.substring(BloomFilterImpl.MY_PACKAGE.length());
        }
        x.put("_impl", cla);
        List<Map<String, Object>> list = new ArrayList<>();
        for (BloomFilter filter : filters) {
            list.add(filter.serialiseToMap());
        }
        x.put("list", list);
        x.put("index", new Long(current_filter_index));
    }
}