Analysis of Authentication Overhead in Vehicular Networks

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Keynote presented in Budapest (Hungary) during the WMNC 2010 conference.

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  • Pu:public key that belong to the subject of the certificate\n
  • Pu:public key that belong to the subject of the certificate\n
  • Pu:public key that belong to the subject of the certificate\n
  • Pu:public key that belong to the subject of the certificate\n
  • Pu:public key that belong to the subject of the certificate\n
  • Pu:public key that belong to the subject of the certificate\n
  • Pu:public key that belong to the subject of the certificate\n
  • Pu:public key that belong to the subject of the certificate\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
  • σ:slot time\nPe,Ps,Pc: proba empty channel, successful transmission, collision\nn: number of vehicle\ne: proba of corruption by noise\npi: proba of transmission in a slot\n
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  • An ounce of prevention is worth a pound of cure\n
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  • LEFT: overhead adds from 4 cm to 10 cm\nRIGHT: P-224=30 cm / P-256=40 cm\n
  • LEFT: overhead adds from 4 cm to 10 cm\nRIGHT: P-224=30 cm / P-256=40 cm\n
  • 35veh/km/lane: comm=+5m / process=+17m\n=>authentication has a great impact -> choise of key size carefully\n
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