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Probable innocence in the presence of independent knowledge

Probable innocence in the presence of independent knowledge
Probable innocence in the presence of independent knowledge
We analyse the Crowds anonymity protocol under the novel assumption that the attacker has independent knowledge on behavioural patterns of individual users. Under such conditions we study, reformulate and extend Reiter and Rubin's notion of probable innocence, and provide a new formalisation for it based on the concept of protocol vulnerability. Accordingly, we establish new formal relationships between protocol parameters and attackers' knowledge expressing necessary and sufficient conditions to ensure probable innocence.
141-156
Hamadou, Sardaouna
a3681473-229f-423a-8113-b466cd1b5e98
Palamidessi, Catuscia
a62c01bb-aec0-490b-bd05-b9081954b88f
Sassone, Vladimiro
df7d3c83-2aa0-4571-be94-9473b07b03e7
ElSalamouny, Ehab
52fa2c12-75b4-4b7c-9dae-aea451460a0a
Hamadou, Sardaouna
a3681473-229f-423a-8113-b466cd1b5e98
Palamidessi, Catuscia
a62c01bb-aec0-490b-bd05-b9081954b88f
Sassone, Vladimiro
df7d3c83-2aa0-4571-be94-9473b07b03e7
ElSalamouny, Ehab
52fa2c12-75b4-4b7c-9dae-aea451460a0a

Hamadou, Sardaouna, Palamidessi, Catuscia, Sassone, Vladimiro and ElSalamouny, Ehab (2009) Probable innocence in the presence of independent knowledge. International Workshop on Formal Aspects in Security and Trust (FAST2009), , Eindhoven, Netherlands. 05 - 06 Nov 2009. pp. 141-156 . (Submitted)

Record type: Conference or Workshop Item (Paper)

Abstract

We analyse the Crowds anonymity protocol under the novel assumption that the attacker has independent knowledge on behavioural patterns of individual users. Under such conditions we study, reformulate and extend Reiter and Rubin's notion of probable innocence, and provide a new formalisation for it based on the concept of protocol vulnerability. Accordingly, we establish new formal relationships between protocol parameters and attackers' knowledge expressing necessary and sufficient conditions to ensure probable innocence.

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More information

Submitted date: 24 October 2009
Venue - Dates: International Workshop on Formal Aspects in Security and Trust (FAST2009), , Eindhoven, Netherlands, 2009-11-05 - 2009-11-06
Organisations: Web & Internet Science

Identifiers

Local EPrints ID: 267666
URI: http://eprints.soton.ac.uk/id/eprint/267666
PURE UUID: cd5b4585-b000-48a2-abcb-cfae49eeab3b

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Date deposited: 12 Nov 2009 15:16
Last modified: 14 Mar 2024 08:55

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Contributors

Author: Sardaouna Hamadou
Author: Catuscia Palamidessi
Author: Vladimiro Sassone
Author: Ehab ElSalamouny

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