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ouiouioui

Contributor

Registered: 2021-05-19

Posts: 3

vigic comelit tag writed when scanned

Hello,

i use proxmark since some years, thanks for all your work it's impressive!
I have changed my interphone by a vigik/comelit and i tried copy tag.
It come with a new protection system at every scan it write random data in one sector (2byte changed)
so if i copy one, if i scan the copy work but original not anymore.

so i thinked something, can we blok writing of one sector or full tag?
if reader verify writing maybe he accept tag again if not changed? Anyone tried this?

Thanks for your help

ouiouioui

Contributor

Registered: 2021-05-19

Posts: 3

Re: vigic comelit tag writed when scanned

Hello,

i was always searching for a solution of a card where block can be writed only once not only the block 0 like FUID

UFUID we can block writing on all block or only 0?

Thanks for your help