Bitcoin Forum
March 19, 2018, 01:12:52 PM *
News: Latest stable version of Bitcoin Core: 0.16.0  [Torrent]. (New!)
   Home   Help Search Donate Login Register  
Pages: [1]
Author Topic: secure physical payment dongle development  (Read 628 times)
Offline Offline

Activity: 19
Merit: 0

View Profile
June 20, 2011, 10:00:39 PM

so an idea about physical payment token arised on irc,

main points
* keypad for pc independent pin code entry
* cheap 7seg screen for payment sum confirming
* prom for program memory(possibly a protected ucontroller) to guarantee uninfected device side software
* eeprom for wallet.dat(encrypted with decryption key only on prom with read disable keys switched on prom)
* some communications with pc to get payment data for user to confirm and to sysnc wallets

* protection against infected pc, private keys never leave the device
* over the counter payment

* even protected ucontrollers are suspectible to power use analyzis, and other grazy hackery eg like this
* nothing protects against
Pages: [1]
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!