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ChargeFox Ultra Rapid Network (350kW/HPC)

Discussion in 'Australia' started by Chuq, Oct 3, 2018.

  1. Vostok

    Vostok Active Member

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    That is very weak “security” if that’s the case. So if you randomly create a virtual RFID tag code that happens to be associated with someone else’s account, you get free electricity?
     
  2. aegidius

    aegidius Member

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    It takes so long to try a number out, you would quickly tire of trying all 2^32 of them...
     
  3. aegidius

    aegidius Member

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    Let us know if you ever start a charging session with an Evie or other non-Chargefox card (as distinct from just adding it in to the app). That will see if they have any real security on their numbers..
     
  4. cafz

    cafz Member

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    It's not exactly the heist of the century though.
     
  5. Vostok

    Vostok Active Member

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    My RFID card only has an 8 digit number on it. OK, that’s still 100 million combinations, but way short of 4.3 billion. Also you wouldn’t need to try every number, you only need to try until you guessed one that was linked to an account.

    If every household in Australia had one RFID card linked to Chargefox (OK, this is an EV nirvana future :D), you’d only need to guess a median of 9 times. More than do-able.

    If randomness is the sole security measure, something of the order of 1 chance in a decillion would be more appropriate, and would cost nothing extra.
     
  6. Vostok

    Vostok Active Member

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    No, but that’s not an excuse.
     
  7. moa999

    moa999 Member

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    My Evie and Chargefox cards are 8 digit alphanumeric.
    So (10+26)^8 = 2.8 trillion combinations
     
  8. aegidius

    aegidius Member

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    They look like hexadecimal (0-9,A-F) to me, unless someone has seen a letter higher then F. So that's a 32-bit number. I'll stop nit picking now :)
     
  9. moa999

    moa999 Member

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    A good point.
    So 16^8 = 3.8bn combinations.
     
  10. cafz

    cafz Member

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    4.3 billion, as long as we're picking nits... or 4,294,967,296.
     
    • Funny x 1
  11. Chuq

    Chuq Active Member

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    Here's a video which is entirely off-topic for this thread but entirely of interest to those discussing the unique id string issue :)

     
    • Informative x 3
  12. moemoke

    moemoke Member

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    I've just noticed that RACV Solar have installed a charging station at their showroom in Bairnsdale, they don't say what output it has but it operates through the Chargefox network, looks like only one charger so could be busy during long weekends etc.
     
  13. moa999

    moa999 Member

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    Listed in Chargefox app as Type 2 (so AC) - 22kw (so 3 phase, 32A).
    So not a rapid charger
     

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