From acbd2bda4a43a1605f611cdf448224b469f3c75e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=D0=90=D0=BD=D1=82=D0=BE=D0=BD=20=D0=A2=D1=80=D0=BE=D1=88?= =?UTF-8?q?=D0=B8=D0=BD?= Date: Mon, 24 Aug 2026 22:55:06 +0300 Subject: [PATCH] README: document C-APDU decoding of secured-packet payloads --- README.md | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 045df50..668d769 100644 --- a/README.md +++ b/README.md @@ -28,7 +28,10 @@ that both captures APDU traffic and serves that PWA. decryption** of ciphered packets — paste the card's 3DES/AES key in the detail view to reveal the real CNTR and secured application data (the key stays in the browser, in-memory only; ciphered on-wire CNTR/PCNTR/RC - are ciphertext and labeled as such) + are ciphertext and labeled as such); the secured application message is + decoded as a stream of **C-APDUs** (SELECT, UPDATE BINARY, …) with + full CLA/INS/P1/P2/Lc/Le breakdown — plaintext immediately, or after + decryption for ciphered packets - ATR parse (clock-rate conversion, Fi/Di, T-bitmask) and FCP/FCI TLV **simtrace-analyser PWA** ([`frontend/`](frontend/)):