Я пытаюсь заменить / дополнить QR-коды тегами NFC для оплаты, но я не уверен, какой формат кодирования NFC выбрать.(Что-то похожее на WeChat Pay, вместо того, чтобы сканировать QR-код, клиент будет нажимать на тег NFC и вводить сумму)
В iOS 13 добавлены возможности чтения и записи для NDEF и собственных тегов, а именно ISO7816, MIFARE,ISO15693 и FeliCa.
Каковы преимущества каждого метода кодирования?
Быстрый поиск показывает, что различия заключаются в способности чтения / записи, памяти и скорости передачи:
1. Tag 1 Type: The Tag 1 Type is based on the ISO14443A standard. These NFC tags are read and re-write capable and users can configure the tag to become read-only. Memory availability is 96 bytes which is more than sufficient to store a website URL or other small amount of data. However the memory size is expandable up to 2 kbyte. The communication speed of this NFC tag is 106 kbit/s. As a result of its simplicity this tag type is cost effective and ideal for many NFC applications.
2. Tag 2 Type: The NFC Tag 2 Type is also based on ISO14443A. These NFC tags are read and re-write capable and users can configure the tag to become read-only. The basic memory size of this tag type is only 48 bytes although this can be expanded to 2 kbyte. Again the communication speed is 106 kbit/s.
3. Tag 3 Type: The NFC Tag 3 Type is based on the Sony FeliCa system. It currently has a 2 kbyte memory capacity and the data communications speed is 212 kbit/s. Accordingly this NFC tag type is more applicable for more complex applications, although there is a higher cost per tag.
4. Tag 4 Type: The NFC Tag 4 Type is defined to be compatible with ISO14443A and B standards. These NFC tags are pre-configured at manufacture and they can be either read / re-writable, or read-only. The memory capacity can be up to 32 kbytes and the communication speed is between 106 kbit/s and 424 kbit/s.
А как насчет уровня безопасности для каждого формата кодирования?
Например: 1) MIFARE: например, Австралия Виктория Мики (трамвай на автобусе) (ИСО / МЭК 14443, тип 13,56 МГц) -> Должен быть тип 1и 2