title: Crypto NFC microchip: JavaCard or dedicated firmware?
body: <p>I would like to implement some ECDSA functionalities into an NFC microchip (generating keypairs, signing, etc.), with NDEF communication.</p>
  
  <p>I am wondering if JavaCards suits that need (size, power, protocol, performances, ECDSA acceleration, etc.), or if I'd rather use more dedicated hardware (e.g. banking secure element) with lower level software layer such as a dedicated firmware (the one I'm targeting is <a href="http://www.tiempo-secure.com/product/dual-interface-secure-chips/" rel="nofollow noreferrer">http://www.tiempo-secure.com/product/dual-interface-secure-chips/</a>).</p>
  
  <p>Thank you very much!</p>
  
  <p>Mario.</p>