T=1 is a block protocol: the terminal and the card exchange blocks with a header and a check code, take turns, and recover from errors with acknowledgement and resynchronisation blocks. Long APDUs are split into chained blocks.
T=1 transport
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Blocks, chaining, information field sizes, waiting time extension and error recovery.
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The opening of the article
In the full article
- Block format
- Three kinds of block
- Information field sizes
- Chaining
- Waiting time extension
- Error recovery
- Typical findings
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