wonder if anyone would be brave enough to use Idratek to control house entry rather a traditional mechanical key, using (say) push-buttons, or RFID tags, or ... ... ... perhaps not, unless it was better than a traditional key ...
What's wrong with the traditional mechanical key ?
Well, when mislaid, access becomes impossible without recourse to violence ... if lost & found, it can be used by anyone ... has to be stored & carried ... scratches things ... takes a hand to use, maybe two to find .... etc !
Could it be bettered ? How ?
This (19thC French thinking on military cyphers) seems helpful :
http://en.wikipedia.org/wiki/Kerckhoffs'_principle
a cryptosystem should be secure even if everything about the system, except the key, is public knowledge ...
must be practically, if not mathematically, indecipherable;
must not be required to be secret ... must be able to fall into the hands of the enemy without inconvenience ...
its key must be communicable & retainable without the help of written notes, and changeable or modifiable at the will of the correspondents ...
must be portable, and ... not require the concourse of several people ...
be easy to use, requiring neither mental strain nor the knowledge of a long series of rules ...
things which are kept secret ought to be those which are least costly to change if inadvertently disclosed ...
No answers yet, but hope to find one ...
What's wrong with the traditional mechanical key ?
Well, when mislaid, access becomes impossible without recourse to violence ... if lost & found, it can be used by anyone ... has to be stored & carried ... scratches things ... takes a hand to use, maybe two to find .... etc !
Could it be bettered ? How ?
This (19thC French thinking on military cyphers) seems helpful :
http://en.wikipedia.org/wiki/Kerckhoffs'_principle
a cryptosystem should be secure even if everything about the system, except the key, is public knowledge ...
must be practically, if not mathematically, indecipherable;
must not be required to be secret ... must be able to fall into the hands of the enemy without inconvenience ...
its key must be communicable & retainable without the help of written notes, and changeable or modifiable at the will of the correspondents ...
must be portable, and ... not require the concourse of several people ...
be easy to use, requiring neither mental strain nor the knowledge of a long series of rules ...
things which are kept secret ought to be those which are least costly to change if inadvertently disclosed ...
No answers yet, but hope to find one ...
Comment