What is IsoDep?
IsoDep allows you to communicate over a ISO-14443-4 connection with the transceive operation. Over this protocol application data units (APDUs) are exchanged. The format is specified, you find a description on Wikipedia.
What is NdefFormatable?
android.nfc.tech.NdefFormatable. Provide access to NDEF format operations on a Tag . Acquire a NdefFormatable object using get(Tag) . Android devices with NFC must only enumerate and implement this class for tags for which it can format to NDEF.
What is NfcA technology?
android.nfc.tech.NfcA. Provides access to NFC-A (ISO 14443-3A) properties and I/O operations on a Tag . Acquire a NfcA object using get(Tag) . The primary NFC-A I/O operation is transceive(byte[]) . Applications must implement their own protocol stack on top of transceive(byte[]) .
What is NFC F?
NFC-F, the FeliCa communication technology, is defined as one of the communication methods specified in NFCIP-1 and JIS X 6319-4, and by the NFC Forum. As a result, all NFC devices support NFC-F communication. Mobile phones equipped with NFC can exchange data with NFC-F-based IC cards and devices.
What is Apdu command?
APDU is a command response protocol for invoking functions executed on a smart card or similar device. In essence, the command consists of a 4 byte header followed by up to 255 bytes of data. The response contains a 2 byte header followed by up to 256 bytes of data.
What is Ndef Formatable?
NDEF (NFC Data Exchange Format) The NFC Data Exchange Format (NDEF) is a standardised data format that can be used to exchange information between any compatible NFC device and another NFC device or tag.
What is NFC A and NFC B?
NFC-A and NFC-B refer to the Type A and Type B communication technologies specified in the contactless IC card international standard ISO/IEC 14443. NFC-F refers to FeliCa communication technology, based on the International Standard ISO/IEC 18092 and JIS X 6319-4. NFC-V refers to ISO/IEC 15693-based communication.
Whats NFC mean on my phone?
Near Field Communication
Near Field Communication (NFC) allows the transfer of data between devices that are a few centimeters apart, typically back-to-back. NFC must be turned on for NFC-based apps (e.g., Android Beam) to function correctly.
What is LC in APDU?
The number of bytes present in the data field of the command APDU is denoted by Lc. The maximum number of bytes expected in the data field of the response APDU is denoted by Le (length of expected data). Figure 4 shows the 4 structures of command APDUs according to the 4 cases defined in table 4.
What is APDU in networking?
In the context of smart cards, an application protocol data unit (APDU) is the communication unit between a smart card reader and a smart card. The structure of the APDU is defined by ISO/IEC 7816-4 Organization, security and commands for interchange.
Can you format NFC tags?
When a Type 2 NFC chip is NDEF formatted, special data is written to the NFC chip’s Capability Container. Most NFC tag encoding systems, including the GoToTags Encoder will detect if an NFC tag needs to be NDEF formatted before trying to write to the tag, and if so, format it before writing the NDEF data.