Abstract: A consumer links a cryptocurrency wallet to their loyalty account and creates a profile that includes a default fiat currency amount to add to transaction totals during transactions at a terminals. During a transaction, the wallet and profile are obtained using the loyalty account of a registered consumer. When the consumer selects an option to pay for their transaction, an overlaid screen is presented to the consumer on the display of the terminal requesting that the consumer confirm the fiat currency amount. When the consumer confirms, the transaction total for the transaction is rounded up by the fiat currency amount. A background workflow is automatically initiated after payment is confirmed on behalf of the user. The workflow uses the fiat currency amount to purchase and transfer an equivalent amount of cryptocurrency into the consumer's wallet over the blockchain.

Abstract: A donation workflow with donation screens is integrated into a transaction workflow of a transaction terminal. The donation workflow is independent and separate from the transaction workflow. When a customer enters a donation into a donation entry screen, an agent on the terminal provides the donation amount to a transaction manager of the terminal. The donation amount is added as a line item to the transaction total. After payment, the fiat currency associated with the donation amount is used to purchase an equivalent amount in cryptocurrency over a blockchain and held in a store wallet of a store. The equivalent amount in cryptocurrency is subsequently transferred over the blockchain from the store wallet to a charity's wallet associated with the charity that is to receive the donation amount from the customer.

Abstract: The invention determines if a security association (SA) extends end-to-end between a source node originating a connection and a destination node. In such a case, there will be no ambiguities in routing due to network address translation, and the SA is allowed. In the preferred embodiment, both end nodes of a security connection test themselves and the remote node for gateway status to determine if any ambiguities might exist in network routing due to the presence of a network address translator.

Abstract: A method, system and computer program product for detecting denial-of-service attacks. The randomness in the Internet Protocol (IP) source addresses of transmitted IP packets may be detected by performing a hash function on the IP source addresses thereby generating one or more different hash values. If a high number of different hash values were generated for a small number of IP packets evaluated, then random IP source addresses may be detected. By detecting random source IP addresses, a denial-of-service attack may be detected.