Oyster Card Online

Wiki info

MIFARE Classic chips, on which the original Oyster card was based, are hard-wired logic smartcards, meaning that they have limited computing power designed for a specific task. The MIFARE DESFire chips used on the new Oyster card are CPUs with much more sophisticated security features and more complex computation power. They are activated only when they are in an electromagnetic field compatible with ISO/IEC 14443 type A, provided by Oyster readers. The readers read information from the cards, calculate whether to allow travel, assess any fare payable and write back information to the card. Some basic information about the MIFARE Classic or MIFARE DESFire chip can be read by any ISO/IEC 14443 type A compatible reader, but Oyster-specific information cannot be read without access to the encryption used for the Oyster system. While it has been suggested that a good reader could read personal details from a distance, there has been no evidence of anyone being able to decrypt Oyster information. By design the cards do not carry any personal information. Aluminium shielding has been suggested to prevent any personal data from being read.

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Make sure you always use the same card to touch in and out to pay the right fare (touch in only on buses and trams).

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Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online


Oyster Card Online