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Sony FeliCa is a contactless IC chip smart card system. Its most famous use is as part of the Octopus cards system in Hong Kong.
Technology
FeliCa's encryption key is dynamically generated every time mutual authentication is performed, preventing fraud such as impersonation.
Reliability
FeliCa supports simultaneous access of up to 8 blocks (1 block is 16 byte). If an IC card is moved outside of the power-supplied area during the session, the FeliCa card automatically discards incomplete data to restore the previous state.
External links
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