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Re: [lpc2000] Re: Code protection again....

2004-12-22 by onestone

Well since you cannot produce a secure system anyway, any system can be 
copied, it at least allows you to prevent the products being sold in 
countries which recognise international property rights. It is better 
than nothing, and harder to crack than most chip based schemes.

I don't believe for one second that it is foolproof, nothing is. Even if 
I can't crack your security I'm damned sure I can functionally duplicate 
your product without breeching patent laws.

Litigation may be easier in chana than,sa y, the US. In china you only 
have to find the right 'partner' with more clout than the rip-off 
artist. In America you have to have deep enough pockets to sustain a 
pack of lawyers. I know where I'd rather take my chances.

Al

ggindele wrote:

> 
> How good is that if the product was ripped off let's say in China? Any
> litigation seems to extremely difficult.
> 
> --- In lpc2000@yahoogroups.com, onestone <onestone@b...> wrote:
>  > Ultimately it is impossible to totally protect code. Perhaps the best
>  > you can prove is that somebody actually ripped you off. I routinely
>  > embed a copyright notice that is encrypted. The notice is functional,
>  > working code that cannot be removed easily. Does not appear as any kind
>  > of sensible ASCII, yet is revealed by a simple key. I also repeat the
>  > same messages in plain text. Which may help to reveal 'holes' in the
>  > memory map.
>  >
>  > Al
>  >
>  > ggindele wrote:
>  >
>  > >
>  > > I think we reached the consensus (with a little Philips help) that
>  > > code protection is available only in the 64 pin package, when the boot
>  > > loader >= 1.63
>  > >
>  > > I wonder would that be a commercially reasonable protection when 2106
>  > > is used with an external electronic serial number. The flash can be
>  > > customized to accept only the right serial number, but there's no code
>  > > protection against JTAG attack.
>  > >
>  > > What do you think? How long would it hold?
>  > >
>  > >
>  > >
>  > >
>  > >
>  > >
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