[9fans] OT: the simplest public key encryption code...

[9fans] OT: the simplest public key encryption code...

[Steve Simon]

I ask here as those who read this list have an understanding of the word simple.

I am after some very simple public key encryption code which I intend to use to
encrypt the md5 of a license file on an embedded system - so in needs to be
really small and simple.

I am tempeted to use the plan9 RSA code, but is there somthing else even simpler
about? Perhaps less secure than RSA but stronger than a password embedded in
the code, XORed with 0xdeadbeef :-)

Anyone seen anything on the net?

-Steve

Re: [9fans] OT: the simplest public key encryption code...

[LiteStar numnums]

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TEA and XTEA are really, really simple and XTEA is resonably secure.
XXTEA & Block TEA have weaknesses, but XTEA should be simple enough &
fast enough for an embedded system.
Good Luck,
 -- Sztefan

http://en.wikipedia.org/wiki/XTEA
http://en.wikipedia.org/wiki/Tiny_Encryption_Algorithm

On 10/4/06, Steve Simon <steve@quintile.net> wrote:
>
> I ask here as those who read this list have an understanding of the word
> simple.
>
> I am after some very simple public key encryption code which I intend to
> use to
> encrypt the md5 of a license file on an embedded system - so in needs to
> be
> really small and simple.
>
> I am tempeted to use the plan9 RSA code, but is there somthing else even
> simpler
> about? Perhaps less secure than RSA but stronger than a password embedded
> in
> the code, XORed with 0xdeadbeef :-)
>
> Anyone seen anything on the net?
>
> -Steve
>



-- 
If work and leisure are soon to be subordinated to this one utopian
principle -- absolute busyness -- then utopia and melancholy will come to
coincide: an age without conflict will dawn, perpetually busy -- and without
consciousness.

-- Günter Grass

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Re: [9fans] OT: the simplest public key encryption code...

[Steve Simon]

Thanks for the pointers guys but I believe TEA and blowfish are
not public key systems, perhaps my terminology is broken, I am after
a twin key system, seperate and different encryption and decryption
keys.

somthing like RSA or eliptic curves...

-Steve

Re: [9fans] OT: the simplest public key encryption code...

[LiteStar numnums]

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Ahh. No, neither TEA nor XTEA  fit that category.
 I'll take the rest to a private message...
On 10/4/06, Steve Simon <steve@quintile.net> wrote:
>
> Thanks for the pointers guys but I believe TEA and blowfish are
> not public key systems, perhaps my terminology is broken, I am after
> a twin key system, seperate and different encryption and decryption
> keys.
>
> somthing like RSA or eliptic curves...
>
> -Steve
>



-- 
If work and leisure are soon to be subordinated to this one utopian
principle -- absolute busyness -- then utopia and melancholy will come to
coincide: an age without conflict will dawn, perpetually busy -- and without
consciousness.

-- Günter Grass

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Re: [9fans] OT: the simplest public key encryption code...

[bituman]

LiteStar numnums wrote:
> Ahh. No, neither TEA nor XTEA  fit that category.
>  I'll take the rest to a private message...
> On 10/4/06, *Steve Simon* < steve@quintile.net 
> <mailto:steve@quintile.net>> wrote:
>
>     Thanks for the pointers guys but I believe TEA and blowfish are
>     not public key systems, perhaps my terminology is broken, I am after
>     a twin key system, seperate and different encryption and decryption
>     keys.
>
>     somthing like RSA or eliptic curves...
>
>     -Steve
>
>
>
>
> -- 
> If work and leisure are soon to be subordinated to this one utopian 
> principle -- absolute busyness -- then utopia and melancholy will come 
> to coincide: an age without conflict will dawn, perpetually busy -- 
> and without consciousness.
>
> -- Günter Grass 
Id be glad if you forwarded those messages to me : ) im also interested.
Not a real project just curiosity.
Thank you
Sandor Nagy