Cryptographic Salt: A Countermeasure against Denial-of-Service Attacks

  • Authors:
  • DongGook Park;JungJoon Kim;Colin Boyd;Ed Dawson

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ACISP '01 Proceedings of the 6th Australasian Conference on Information Security and Privacy
  • Year:
  • 2001

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Abstract

Denial-of-service (DoS) attack is one of the most malicious Internet-based attacks. Introduction of cryptographic authentication protocols into Internet environment does not help alleviate the impact of denial-of-service attacks, but rather increases the vulnerability to the attack because of the heavy computation associated with cryptographic operation. Nevertheless, many Internet security protocols including SSL/TLS protocol do not consider this aspect. We consider this overlooked issue in authentication protocol design, and propose an effective countermeasure applicable to authentication protocols like SSL/TLS protocol which adopt public-key based encryption to authenticate the server to the client.