[Cryptography] Elliptic curve question

[Dominik Schürmann]

On 07.10.2013 10:54, Lay András wrote:

> I made a simple elliptic curve utility in command line PHP:
> 
> https://github.com/LaySoft/ecc_phgp
> 
> I know in the RSA, the sign is inverse operation of encrypt, so two
> different keypairs needs for encrypt and sign. In elliptic curve
> cryptography, the sign is not the inverse operation of encrypt, so my
> application use same keypair for encrypt and sign.
> 
> Is this correct?

Without looking at your specific implementation, I had a similar
question but regarding to ECIES combined with ECDSA. See
http://lists.randombit.net/pipermail/cryptography/2013-September/005353.html
for the answers.

Regards
Dominik

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