Publication

Self-Organized Public-Key Management for Mobile Ad Hoc Networks

Jean-Pierre Hubaux, Levente Buttyan, Srdan Capkun
2002
Reports

Abstract

In contrast with conventional networks, mobile ad hoc networks do not provide on-line access to trusted authorities or to centralized servers. For this reason, key management is particularly difficult to implement in such networks. The solutions published so far alleviate the problem by requiring a trusted authority only in the system start-up phase (for the distribution of initial keys or key shares). Here, we consider a more extreme case where there is no central authority at all, not even in the initialization phase. We propose a fully self-organizing public-key management system, in which the users generate their keys, and issue, store, and distribute public-key certificates. Our system can be used for securing both networking functions (e.g., routing) and application services in mobile ad hoc networks.

Official source

https://infoscience.epfl.ch/entities/publication/68a185d9-fc46-487e-9592-5406f29f0899

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Jean-Pierre Hubaux, Levente Buttyan, Srdan Capkun
2002
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/68a185d9-fc46-487e-9592-5406f29f0899

About this result

Related concepts (32)

Certificate authority

In cryptography, a certificate authority or certification authority (CA) is an entity that stores, signs, and issues digital certificates. A digital certificate certifies the ownership of a public key by the named subject of the certificate. This allows others (relying parties) to rely upon signatures or on assertions made about the private key that corresponds to the certified public key. A CA acts as a trusted third party—trusted both by the subject (owner) of the certificate and by the party relying upon the certificate.

Key management

Key management refers to management of cryptographic keys in a cryptosystem. This includes dealing with the generation, exchange, storage, use, crypto-shredding (destruction) and replacement of keys. It includes cryptographic protocol design, key servers, user procedures, and other relevant protocols. Key management concerns keys at the user level, either between users or systems. This is in contrast to key scheduling, which typically refers to the internal handling of keys within the operation of a cipher.

Trusted third party

In cryptography, a trusted third party (TTP) is an entity which facilitates interactions between two parties who both trust the third party; the third party reviews all critical transaction communications between the parties, based on the ease of creating fraudulent digital content. In TTP models, the relying parties use this trust to secure their own interactions. TTPs are common in any number of commercial transactions and in cryptographic digital transactions as well as cryptographic protocols, for example, a certificate authority (CA) would issue a digital certificate to one of the two parties in the next example.

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Self-Organized Public-Key Management for Mobile Ad Hoc Networks

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