Our Online Store have the new products: RFID antenna board. Currently it can work with JC10M24R and JCOP4 card chips.
Compared with normal cards, the antenna board module has a smaller size and fixed holes, which is easy to integrate in the IOT(Internet Of Things) project.

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by scotmaria
Fri Jun 22, 2018 3:27 am
Forum: Algorithm School
Topic: Do hash on PC and send digest to my card for signing
Replies: 8
Views: 31832

Re: Do hash on PC and send digest to my card for signing

A call to this method also resets this Signature object to the state it was in when previously initialized via a call to init(). That is, the object is reset and available to sign another precomputed hash.

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JavaCard OS : Disclaimer