1. A. Aziz, “Simple Key Management for Internet Protocols (SKIP)”, Internet Draft (work in progress), draft-ietf-ipsec-skip-04.txt, November 1995.
2. Lect Notes Comput Sci;A. Bosselaers,1994
3. W. Diffie, M. Hellman, “New directions in cryptography”, IEEE IT-22 (1976) pp.644–654.
4. Lect Notes Comput Sci;J. Hastad,1986
5. Lect Notes Comput Sci;R. Heiman,1993