“In this paper, we present #DDoSCoin, which is a #cryptocurrency with a malicious proof-of-work. DDoSCoin allows miners to prove that they have contributed to a #distributed_denial_of_service attack against specific target servers. This proof involves making a large number of TLS connections to a target server, and using cryptographic responses to prove that a large number of connections has been made. Like proof-of-work puzzles, these proofs are inexpensive to verify, and can be made arbitrarily difficult to solve.”
Paper: ▻https://www.usenix.org/conference/woot16/workshop-program/presentation/wustrow