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Reading NFC Passport Chips in Linux

(shkspr.mobi)
287 points robin_reala | 1 comments | 25 Jun 25 07:33 UTC | HN request time: 0s | source
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stavros ◴[25 Jun 25 09:08 UTC] No.44375141[source]▶
Hm, he doesn't say whether he managed to decrypt the passport with the missing checksum in the end, or whether the piercing doesn't matter because it's trivial to calculate the checksum from the rest of the info, or how long that would take. Did I miss it, or is that useful information omitted?
replies(1): >>44375242 #
edent ◴[25 Jun 25 09:24 UTC] No.44375242[source]▶
OP here. It is trivial to create the missing checksum. It is detailed at https://shkspr.mobi/blog/2025/06/reading-nfc-passport-chips-...
replies(1): >>44375603 #
1. stavros ◴[25 Jun 25 10:22 UTC] No.44375603[source]▶
Yep, I saw that section, but thought that the next section was a continuation of it. Maybe you could say a few more things about it, like "since it was trivial to recreate the checksum, I managed to read my passport fine, and then wondered what it would take to guess the entire MRZ" as a segue.