@Override public List<StrictBitVector> receive(StrictBitVector choiceBits, int sizeOfEachMessage) { if (this.receiver == null) { this.receiver = rot.createReceiver(); } int amountToPreprocess = computeExtensionSize(choiceBits.getSize(), comSecParam, statSecParam); byte[] extraByteChoices = Arrays.copyOf(choiceBits.toByteArray(), amountToPreprocess / Byte.SIZE); List<StrictBitVector> messages = receiver.extend(new StrictBitVector(extraByteChoices)); return messages.parallelStream().limit(choiceBits.getSize()) .map(m -> LengthAdjustment.adjust(m.toByteArray(), sizeOfEachMessage / Byte.SIZE)) .map(StrictBitVector::new) .collect(Collectors.toList()); }
/** * Act as receiver in a 1-out-of-2 OT. * * @param choiceBit * The bit representing choice of message. False represents 0 and * true represents 1. */ @Override public StrictBitVector receive(boolean choiceBit) { if (this.receiver == null) { RotReceiver receiver = rot.createReceiver(); this.receiver = new BristolOtReceiver(receiver, resources, network, batchSize); } byte[] res = receiver.receive(choiceBit); return new StrictBitVector(res); } }