Subproject E-AEGIS/M-PRIVACY, led by CRISES/URV, will deal with the mobile services scenario and the implementation of the two demonstrators. The specific objectives of the subproject are:

  1. Developments of private identification methods which can be scale to large populations of RFID tags. Nowadays, RFID tag identification is either not private (tags send their identifiers without encrypting them) or forces the RFID reader to exhaustively search the key space to find the key corresponding to a specific tag, which is clearly not scalable when there are many outstanding tags. E-AEGIS/M-PRIVACY intends to design identification protocols which can be both private and scalable. A promising approach is to divide the space into cells.

  2. Design of private identification protocols using public-key cryptography (elliptic curves). Those ought to be lightweight enough to be implementable in an RFID tag. Up to now, the general idea is that RFID cannot accommodate enough logical gates to support public-key cryptography., which would be an interesting alternative to obtain scalable private identification protocols. We plan to advance toward the design of minimalist public-key protocols (based on elliptic curves) which can fit in a tag.

  3. Proposal of location privacy methods to make compatible the deployment of location-based services with the location privacy of mobile users. This normally implies a trade-off between the inaccuracy of the location supplied by the user and the inaccuracy of the information returned by the location-based service. This objective will be tackled in collaboration with the IF-PAD/CSIC group who will conduct re-identification experiments to check whether the location cloaking being used is enough to protect the user location from being tracked.

  4. >Evaluation of the privacy offered to a certain mobile user by the current topology of a MANET/VANET as the locations of the user and the rest of network nodes vary. Graph-theoretic indices will be developed to this end.

  5. Implementation of the E-AEGIS demonstrators. First demonstrator: MANET with privacy-aware distribution of protected digital content. Second demonstrator: RFID system with scalable private identification. This objective will be led by CRISES/URV but will be pursued in co-operation with IF-PAD/CSIC (generation of synthetic log files by the content provider) and KISON/UOC (fingerprinting and anonymous payment of protected digital content).


  • Dr. Josep Domingo (CU, URV), principal researcher (IP) of the subproject and E-AEGIS co-ordinator
  • Jordi Aragonès (B,URV)
  • Ivan Barenys (B, URV)
  • Oscar Barenys (B, URV)
  • Dr. Benet Campderrich (TU, URV)
  • Dr. Jordi Castellà (LEC, URV)
  • Dra. Vanesa Daza (JdC, URV)
  • Jesús Manjón (TC, URV)
  • Dr. Antoni Martínez (COL, URV)
  • Dr. Josep M. Mateo (TU, URV)
  • Dra. Anna Oganian (IN, NISS-USA)
  • Dr. Rafael Ramírez (TEU, URV)
  • Dr. Juan Alberto Rodríguez (AGR, URV)
  • Dr. Francesc Sebé (LEC, URV)
  • Júlia Sigles (ASO, URV)
  • Agustí Solanas (B, URV)
  • Alexandre Viejo (B, URV)