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Untraceable RFID tags via insubvertible encryption

Untraceable RFID tags via insubvertible encryption Untraceable RFID Tags via Insubvertible Encryption Giuseppe Ateniese The Johns Hopkins University Jan Camenisch IBM Research Breno de Medeiros Florida State University [email protected] [email protected] [email protected] ABSTRACT We introduce a new cryptographic primitive, called insubvertible encryption, that produces ciphertexts which can be randomized without the need of any key material. Unlike plain universal re-encryption schemes, insubvertible encryption prevents against adversarial exploitation of hidden channels, by including certi cates proving that the ciphertext can only be decrypted by authorized parties. The scheme can be applied to RFID tags, providing strong protection against tracing. This enables post-sale applications of manufacturer-issued RFID tags while preserving the privacy of consumers. The functionality required of the RFID tags is minimal, namely that they be re-writable (many-writable). No cryptographic capabilities are required of the tags themselves, as the readers perform all necessary computations. Categories and Subject Descriptors: K.6.5 [Security and Protection] General Terms: Algorithms, Security. Keywords: Universal re-encryption, bilinear maps, RFID privacy. 1. INTRODUCTION œSmart tags  are radio-frequency powered/emitting identi cation (RFID) that are being phased in as product labels, in substitution of, or in addition to, barcode tags. However, unlike barcodes and other consumer labeling techniques, RFID tags record a su ƒciently long http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Untraceable RFID tags via insubvertible encryption

Ateniese, Giuseppe; Camenisch, Jan; de Medeiros, Breno
Association for Computing Machinery — Nov 7, 2005
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Datasource
Association for Computing Machinery
Copyright
Copyright © 2005 by ACM Inc.
ISBN
1-59593-226-7
doi
10.1145/1102120.1102134
Publisher site
See Article on Publisher Site

Abstract

Untraceable RFID Tags via Insubvertible Encryption Giuseppe Ateniese The Johns Hopkins University Jan Camenisch IBM Research Breno de Medeiros Florida State University [email protected] [email protected] [email protected] ABSTRACT We introduce a new cryptographic primitive, called insubvertible encryption, that produces ciphertexts which can be randomized without the need of any key material. Unlike plain universal re-encryption schemes, insubvertible encryption prevents against adversarial exploitation of hidden channels, by including certi cates proving that the ciphertext can only be decrypted by authorized parties. The scheme can be applied to RFID tags, providing strong protection against tracing. This enables post-sale applications of manufacturer-issued RFID tags while preserving the privacy of consumers. The functionality required of the RFID tags is minimal, namely that they be re-writable (many-writable). No cryptographic capabilities are required of the tags themselves, as the readers perform all necessary computations. Categories and Subject Descriptors: K.6.5 [Security and Protection] General Terms: Algorithms, Security. Keywords: Universal re-encryption, bilinear maps, RFID privacy. 1. INTRODUCTION œSmart tags  are radio-frequency powered/emitting identi cation (RFID) that are being phased in as product labels, in substitution of, or in addition to, barcode tags. However, unlike barcodes and other consumer labeling techniques, RFID tags record a su ƒciently long

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