Title
Attackers, Packets, and Puzzles: On DenialofService Prevention in Local Area Networks,Used
Delivery time: 8-12 business days (International)
We tackle the problem of securing communication in Local Area Networks (LANs) and making it resistant against DenialofService (DoS) attacks. Our first contribution is the Cryptographic Link Layer (CLL) a comprehensive security protocol that provides authentication and confidentiality between neighboring hosts from the link layer upwards. Verifying digital signatures in the handshake phase of CLL is an expensive task compared to symmetrickey operations. Thus, it may become a target for new DoS attacks. We introduce a countermeasure against DoS flooding attacks on publickey handshakes in LANs, called counterflooding. A known approach against DoS attacks in the Internet are client puzzles. However, existing client puzzle schemes have drawbacks when being applied in LANs. We propose a novel, nonparallelizable scheme for client puzzles based on the computation of square roots modulo a prime. By introducing a secure client puzzle architecture we provide a solid basis to safely employ noninteractive client puzzles. In our final contribution, we pursue the idea of cryptographic puzzles beyond DoS protection and propose an offline submission protocol based on RSA timelock puzzles.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.
Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.