Methods and devices for detecting denial of service attacks in secure interactions

A device for preventing a denial of service attack on a network, the device comprising:

• at least one interface;
• a memory including instructions;
• and
• a processor that executes the instructions to:
• generate, by a certificate authority (CA) in response to receiving a request by the CA from a first entity to initiate a blockchain operation on behalf of the first entity and a second entity different from the CA, a prompt including at least one condition that is associated with the blockchain operation, wherein the at least one condition is presented by the first entity to receive a response to the at least one condition;
• send, to the first entity via the at least one interface, a first message that acknowledges the request, the first message including the prompt;
• receive, via the at least one interface, a second message, the second message including an indication of whether the at least one condition has been satisfied or is authorized to be satisfied comprising the response to the at least one condition received by the first entity;
• denying the request, upon determining that the request from the first entity is attempting the denial of service attack, or approving the request, upon determining the first entity is issuing a legitimate request to initiate the blockchain operation based on the indication;
• and
• approving the request further comprising initiating the blockchain operation, upon determining that the at least one condition has been satisfied.

A system for preventing a denial of service attack on a network, the system comprising:

• a first device including at least one first interface;
• a second device including at least one second interface;
• and
• a third device including at least one third interface, wherein:
• the first device sends, via the at least one first interface, a request to the at least one third interface for the third device to initiate a blockchain operation on behalf of the first device and the second device, wherein the third device is different from the first device and the second device;
• the third device generates, in response to receiving the request, a prompt including at least one condition that is associated with the blockchain operation, wherein the at least one condition is presented by a first entity to receive a response to the at least one condition;
• the third device sends, via the at least one third interface, a first message to the at least one first interface that acknowledges the request, the first message including the prompt;
• the third device receives, via the at least one third interface, a second message, the second message including an indication of whether the at least one condition has been satisfied or is authorized to be satisfied comprising the response to the at least one condition received by the first entity;
• the third device denies the request upon determining that the request from the first device is attempting the denial of service attack or approves the request upon determining the first device is issuing a legitimate request to initiate the blockchain operation based on the indication;
• the third device approves the request further comprising initiating the blockchain operation, upon determining that the at least one condition has been satisfied;
• and
• the third device denies the request further comprising ignoring the request upon determining that the at least one condition of the prompt has not been satisfied or is not authorized to be satisfied.