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Lowe modified BAN concrete Andrew Secure RPC

Author(s): Gavin Lowe  (1996)

Summary: A modified version of the BAN concrete Andrew Secure RPC protocol, preventing a parallel session attack. Exchanged of a fresh shared key, Symmetric key cryptography.

Protocol specification (in common syntax)

A, B :   principal
Kab, K'ab :   symkey
Na, Nb, N'b :   nonce
succ :   nonce -> nonce

1.   A -> B :   A, Na
2.   B -> A :   {Na, K'ab, B}Kab
3.   A -> B :   {Na}K'ab
4.   B -> A :   Nb

Description of the protocol rules

The identity of the responder B has been added in the message 2 of andrewBAN2.


See Andrew Secure RPC.



See also

Andrew Secure RPC, BAN modified Andrew Secure RPC, BAN concrete Andrew Secure RPC.


Gavin Lowe. Some new attacks upon security protocols. In IEEE Computer Society Press, editor, In Proceedings of the Computer Security Foundations Workshop VIII, 1996.
last modified 14/11/2002.
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