TIRIS DST 4D/TIRIS DST 4E

TIRIS DST 4D is very similar with TIRIS DST 4E，they have same data area and algorithm,
crypto key is 40 bit(5 bytes) stored in page 4. The only different is they have different
coding method, so this 2 transponder can’t instead each other

Read Transponder:
​Read Page1-Page4 (default key can read for page4) and get 
lock status. If the page was locked, you can’t write data anymore. Page3 usually use
as identifier, it combined with 3 bytes Serial and 1 bytes manufacture code 

Write:
​Write data to unlock page. Page1 and Page2 have 1 byte, Page3 have 4 bytes,
Page4 have 5 byes

Lock:
​It can protect the page for write operation

TIRIS crypto verify:
This function can verify the stored crypto key (page4) right or not
 Check TIRIS response (40 bits): VVDI2 send the seed to transponder and read the 
crypto value (3 bytes)
 Calc TIRIS response (40 bits): VVDI2 have the algorithm for TIRIS 40 bits, we can 
calculate the seed and key, get right crypto value (3bytes). Compare this value with
transponder response value, if they are same, the transponder have same crypto
key as you input. (Attention：For some special crypto key, you need check several
different seed for the verify)

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