Common Contracts

EÆcient Hybrid Key Agreement Protocol for Wireless Ad Hoc Networks

July 26th, 2002

• Filed
  July 26th, 2002

Abstract| Secure and eÆcient communication among a set of mobile nodes is one of the most important aspects in ad-hoc wireless networks. To ensure the security, several cryptography protocols must be implemented. Due to the resource scarcity in wireless networks, the protocols must be communication eÆcient and need as less computational power as possible. To secure the group broadcasting in wireless networks, often a group key is needed so that eÆcient conventional encryption, such as DES and AES, can be used. Several group key management protocols have been proposed. However, not all of them are communica- tion eÆcient when applied to wireless ad-hoc networks. In this paper, we propose a key agreement protocol that is communica- tion eÆcient by using connected dominating set concept to set up subgroups among all wireless nodes. We also show how to manage the group eÆciently in a mobile environment.

Efficient Hybrid Key Agreement Protocol for Wireless Ad Hoc Networks

July 31st, 2001

• Filed
  July 31st, 2001

Abstract — Secure and efficient communication among a set of mobile nodes is one of the most important aspects in ad-hoc wireless networks. To ensure the security, several cryptography protocols must be implemented. Due to the resource scarcity in wireless networks, the protocols must be communication efficient and need as less computational power as possible. To secure the group broadcasting in wireless networks, often a group key is needed so that efficient conventional encryption, such as DES and AES, can be used. Several group key management protocols have been proposed. However, not all of them are communica- tion efficient when applied to wireless ad-hoc networks. In this paper, we propose a key agreement protocol that is communica- tion efficient by using connected dominating set concept to set up subgroups among all wireless nodes. We also show how to manage the group efficiently in a mobile environment.