Common Contracts

Unbalanced Identity-Based Key Agreement With Identity Privacy

March 16th, 2006

• Filed
  March 16th, 2006

Abstract. On AisaCrypt 2005 Barreto et al. proposed an elegant identity- based signcryption scheme built from pairings. By using this scheme as the main ingredient, we present a suit of identity-based key agreements, which not only achieve strong security, but also have unbalanced compu- tation complexity and identity privacy. Furthermore, the protocols are also equipped to mitigate the threat of Denial-of-Service attacks. These make the protocols particularly suitable for certain applications, such as authentication in mobile networks with low power devices.