ISO 7816-4, Section 4 - Abbreviations and Notation
For the purposes of this part of the ISO/IEC 7816, the following abbreviations apply :
| APDU | Application protocol data unit |
| ATR | Answer to reset |
| BER | Basic encoding rules of ASN.1 (see annex D) |
| CLA | Class byte |
| DIR | Directory |
| DF | Dedicated file |
| EF | Elementary file |
| FCI | File control information |
| FCP | File control parameter |
| FMD | File management data |
| INS | Instruction byte |
| MF | Master file |
| P1-P2 | Parameter bytes |
| PTS | Protocol type selection |
| RFU | Reserved for future use |
| SM | Secure messaging |
| SW1-SW2 | Status bytes |
| TLV | Tag length value |
| TPDU | Transmission protocol data unit |
For the purposes of this part of ISO/IEC 7816, the following notation applies :
< TR>
| ‘0’-‘9’ and ‘A’-‘F’ | The sixteen hexadecimal digits |
| (B1) | Value of byte B1 |
| B1||B2 | Concatenation of bytes B1 (the most significant byte) and B2 (the least significant byte) |
| # | Number |
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