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13

ICDCSW
2007
IEEE

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Exploring Symmetric Cryptography for Secure Network Reprogramming

13 years 11 months ago

Exploring Symmetric Cryptography for Secure Network Reprogramming

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Recent secure code-update protocols for sensor networks have been based on asymmetric-crypto primitives such as digital signatures. Our approach, Castor, explores the feasibility of securing an existing code-update protocol, Deluge, using symmetric-crypto mechanisms that are more suited to the resource constraints of sensor nodes. Castor involves a synergistic combination of a one-way hash-chain, a one-way key-chain, and a sequence of MACs with delayed key-disclosure to enable sensor nodes to verify the update’s authenticity. We guarantee that no correct node will ever install or forward a compromised part of an update, while addressing the performance issues related to delayed keydisclosure.

Donnie H. Kim, Rajeev Gandhi, Priya Narasimhan

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Code-update Protocol | Distributed And Parallel Computing | ICDCSW 2007 | Secure Code-update Protocols | Sensor Nodes |

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Added	03 Jun 2010
Updated	03 Jun 2010
Type	Conference
Year	2007
Where	ICDCSW
Authors	Donnie H. Kim, Rajeev Gandhi, Priya Narasimhan

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