TLV is the short for Type Length Value. It is a technique mostly used to encode optional information within data communication protocols.
Questions tagged [tlv]
109 questions
-1
votes
1 answer
Cant parse smart card Get Response (TLV)
I have been playing a little with a smart card i got,
I did SELECT command on 3F00, and right after that GET RESPONSE command and
got this data:
85 17 00 01 00 00 00 12 12 00 00 01 03 01 01 00 60 60 60 00 00 00 00 00 00 90 00
I've tried to parse…

Saar Arbel
- 91
- 1
- 7
-2
votes
1 answer
Decimal to uint8_t array
uint8_t certificateSerialNumber[] = {0x02, 0x04, 0x24,0xA8,0x16,0x34};
The decimal 614995508 (actual serial number)is converted to hexadecimal 24A81634.
The above unit8 array is the representation on TLV(tag length value) triplet of serial…
-2
votes
1 answer
How to create and parse Tag, Length, Value (TLV) in JavaScript or java and encode it in Base64
The QR code fields shall be encoded in Tag-Length-Value (TLV) format with the tag values specified in the “Tag” column of the adjacent table in the image below.
The TLV encoding shall be as follows:
Tag: the tag value as mentioned above is stored in…

Mahmoud Aheed
- 1
- 1
- 2
-2
votes
1 answer
How to get apdu command logs from ingenico device in c?
I am working on Ingedev to implement a Telium application in C.
How can I read the Application Protocol Data Unit (APDU) from a contactless EMV card transaction with an Ingenico device?
Can the APDU be retrieved from the TLV tree data exchanged…

K J Gor
- 750
- 5
- 17