The command can be performed only if the security status satisfies the security attributes for this EF for the write functions. The command shall set the record pointer on the successfully appended record. The command can be performed only if the security status satisfies the security attributes for this EF for the append function.
NOTE — If this command is applied to an EF of cyclic structure full of records, then the record with the highest record number is replaced. This record becomes record number 1. When using current record addressing, the command shall set the record pointer on the successfully updated record. The command can be performed only if the security status satisfies the security attributes for this EF for the update function.
When the command applies to an EF with linear fixed or cyclic structure, the it shall be aborted if the record length is different form the length of the existing record. When the command applies to an EF with linear variable structure, then it may be carried out when the record length is different from the length of the existing record.
The GET DATA command is used for the retrieval of one primitive data object, or the retrieval of one or more data objects contained in a constructed data object, within the current context e. The GET DATA command can be performed only if the security status satisfies the security conditions defined by the application within the context for the function. The command can be performed only if the security status satisfies the security conditions defined by the application within the context for the function.
When a primitive data object is requested, the data field of the response message shall contain the value of the corresponding primitive data object. When a constructed data object is requested, the data field of the response message shall contain the value of the constructed data object, i. The PUT DATA command is used for storing one primitive data object or one or more data objects contained in a constructed data object within the current context e.
NOTE — The command could be used for example to update data objects. The command can be performed only if the security status satisfies the security conditions defined by the application within the context for the function s.
When a primitive data object is requested, the data field of the command message shall contain the value of the corresponding primitive data object. When a constructed data object is provided, the data field of the command message shall contain the value of the constructed data object, i. A successful Select File sets a current file within a logical channel. Subsequent command may implicitly refer to the current file through that logical channel.
After such a selection, an implicit current EF may be referred to through that logical channel. Selecting an EF sets a pair of current files: the EF and its parent file.
After the answer to reset, the MF is implicitly selected through the basic logical channel, unless specified differently in the historical bytes or in the initial date string. Unless otherwise specified, the correct execution of the command modifies the security status according to the following rules :. When supported, successive such commands with the same data field shall select DFs whose names match with the data field, i. NOTE — See 8. If the Le field contains only zeroes, then within the limit of for short length or for extended length, all the bytes corresponding to the selection option should be returned.
The VERIFY command initiates the comparison in the card of the verification data sent from the interface device with the reference data stored in the card e. The security status may be modified as a result of a comparison. Unsuccessful comparisons may be recorded in the card e. When the relevant secret is attached to the MF, the command may be used to authenticate the card as a whole. When the relevant secret is attached to another DF, the comand may be used to authenticate that DF.
The successful execution of the command may be subject to successful completion of prior commands e. Verify, Select File or selections e. Hence, a valid format would be. You receive the status word 6E 00 in response to the command. The meaning of this status word is " class not supported ". This indicates that commands with the CLA byte set to 0x00 are not supported in the current state.
Overall, you can assume that your card does not support this command in its current execution state. Assuming you are interacting with an EMV payment card, you typically need to select an application first. Your question does not indicate if you do this already, so I assume, you don't do this right now.
The value of the application AID, of course, depends on the card application and may be obtained by following the discovery procedures defined in the EMV specifications. Consequently, the CLA byte must be set to 0x Standard ISO includes several parts.
When terminal device vendors noticed about ISO they just confirm that the common Physical characteristics Part 1 , Dimension and Contacts Part 2 and Transmission protocol Part 3 were applied to the device reader. APDU commands and responses defined in ISO Part 4 and few other parts also are generic definition and might not fully supported by your smartcard.
Usually you need to follow payment procedure. Fifth byte known as "Le" - Length of Expected Data. When you can repeat same command with correct Le value. If the command where satisfactory in place of see 6E 00 at the moment of cast the answer to string I would see the information as plain text?
As developer you can transform bytes into desired format or use it as-is. Please keep in mind that according to EMV specifications the formats of Tags data can be variable:. This is the actual start of the transaction.
Here you will be returned a tag named AFL application file locator. As you parse through, you will find the your required data. In case you are not sure how to parse, copy the hex data an try it here. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 5 years, 1 month ago. Active 3 years, 5 months ago. Viewed 30k times. SessionHandler PHP. Run Go. Token Go. JetDecompiledData Java.
JCTree Java. FeaturesConverter Python. Example 1. Show file. File: AbstractSmartCard. Case2Short, reader. Leave ; if responseApdu! Example 2. File: CardReader. Establish SCardScope. Shared, SCardProtocol. Any ; if result! Dispose ; reader. Dispose ; return string. NewLine, SCardHelper. Status out readerNames, out state, out protocol, out atr ; if result!
Format "Unable to read from card. NewLine, protocol, state, BitConverter. ToString atr?? BeginTransaction ; if result! Format "Cannot start transaction. GetPci reader. Transmit sendPci, apdu. ToArray , recievePci, ref recieveBuffer ; if result! Format "Cannot transmit data. NewLine, responseApdu. SW1, responseApdu. ToString responseApdu. Leave ; reader. Disconnect SCardReaderDisposition. Reset ; context.
Example 3. File: Program. T0 SCardProtocol. T1 ; checkError err ; switch reader. T0; break; case SCardProtocol. Example 4. WriteLine "No readers found. WriteLine "No card inserted or reader is reserved exclusively by another application. Example 5. Write "Trying to connect to reader.. Connect name, SCardShareMode.
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