シャープ(株)は22日、大容量フラッシュメモリーとCPUを内蔵したICカード向けの『Java Card OS』を開発したと発表した。これは同社の1MBのフラッシュ ...

It runs the Java Card 2.0 standard, which is discussed in the article linked above. While it might be the coolest piece in the catalog, the Java ring was just one of many ways to get your iButton.

This is the current release of the Java Card PKI host API and application. For more details see http://javacardsign.sourceforge.net. To load the applet to the card ...

Keep a running count starting at 0 For cards with a value of 2 to 6, add 1 to the count For cards 7 to 9, add 0 to the count For cards 10 to Ace, subtract 1 from the count The program assumes that the ...