Smart card ATR parsing

Enter an ATR (Answer To Reset) and I will parse it for you.

Results

Parsing ATR:

3B 95 15 40 00 68 01 02 00 00
TS = 0x3BDirect Convention
T0 = 0x95Y(1): b1001, K: 5 (historical bytes)
TA(1) = 0x15Fi=372, Di=16, 23.25 cycles/ETU (172043 bits/s at 4.00 MHz, 215053 bits/s for fMax=5 MHz)
TD(1) = 0x40Y(i+1) = b0100, Protocol T=0
----
TC(2) = 0x00Work waiting time: 960 x 0 x (Fi/F)
----
Historical bytes68 01 02 00 00
Category indicator byte: 0x68 (proprietary format) "...."

Possibly identified card:

3B 95 15 40 .. 68 01 02 .. ..

Schlumberger CryptoFlex 8k v2

Click here to enter the card description

Canonical URL JSON output

Again

Submit another ATR


See also

The parsing code is part of pyscard and is available at parseATR.py.

The list of known ATR is also available online at smartcard_list.txt.

My blog contains a serie of artickes about ATR bytes.