ATR_ANALYSIS(1p)

💖 ATR_ANALYSIS 💖

okay bestie, welcome to the manual page for ATR_analysis — it's a User Commands situation, section 1p, and honestly? it's giving niche-but-iconic. let's get into it 🎀

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✨ NAME ✨

ATR_analysis — analyse a smart card ATR. that's it, that's the whole job, and she does it flawlessly 💅

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🌸 SYNOPSIS 🌸

ATR_analysis [ATRstring]

one optional argument, zero drama. we love a low-maintenance queen 🫶

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🦋 DESCRIPTION 🦋

so like, ATR_analysis is used to parse the ATR (Answer To Reset) that a smart card sends out. think of it as the card introducing itself the second it wakes up, and this tool is the friend who actually understands what it's saying 🧚

the command also tries to find the card model using an ATR database stored in a text file called smartcard_list.txt. it's basically a glow-up detective ✨

the smartcard_list.txt file is searched in these three places, in this order:

• $XDG_CACHE_HOME/smartcard_list.txt
• $HOME/.smartcardlist.txt
• /usr/share/pcsc/smartcard_list.txt

💫 Example 💫

like, here's what it actually looks like when it eats:

 $ ATR_analysis '3B A7 00 40 18 80 65 A2 08 01 01 52'
 ATR: 3B A7 00 40 18 80 65 A2 08 01 01 52
 + TS = 3B --> Direct Convention
 + T0 = A7, Y(1): 1010, K: 7 (historical bytes)
   TB(1) = 00 --> Programming Param P: 0, I: 0
   TD(1) = 40 --> Y(i+1) = 0100, Protocol T = 0
 -----
   TC(2) = 18 --> Work waiting time: 960 x 24 x (Fi/F)
 + Historical bytes: 80 65 A2 08 01 01 52

 Possibly identified card:
 3B A7 00 40 18 80 65 A2 08 01 01 52
        Gemplus GPK8000

look at that output. the way it decoded all those bytes and then dropped the card name at the end?? main character energy, no cap 🔥

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💀 BUGS 💀

ngl, there may be many bugs, because the author is not an ISO 7816 expert. real, honest, humble. we respect the transparency fr fr 🙈

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🍓 FILES 🍓

• smartcard_list.txt

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🌈 SEE ALSO 🌈

• pcscd(8)
• pcsc_scan(1)

iykyk, go read those next bestie 👑

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👑 AUTHOR 👑

Ludovic Rousseau <ludovic.rousseau@free.fr>

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and that's a wrap, gorgeous 💜 this whole thing is Version: 1.3, dated October 2005, and it's the ATR_ANALYSIS(1p) page from User Commands. slay, periodt 🎀✨