Re: Converting ECC public key point-compressed and uncompressed

2011-07-18 Thread Erwin Himawan
- > From: "Martin Boßlet" > Sent: Sunday, July 17, 2011 7:21 AM > To: > Subject: Re: Converting ECC public key point-compressed and uncompressed > > > My understanding is that to convert the form of ecc key from compressed to >>> uncompressed and

Re: Converting ECC public key point-compressed and uncompressed

2011-07-17 Thread Erwin Himawan
Marti, thanks for your response. Erwin -- From: "Martin Boßlet" Sent: Sunday, July 17, 2011 7:21 AM To: Subject: Re: Converting ECC public key point-compressed and uncompressed My understanding is that to convert the form of ec

Re: Converting ECC public key point-compressed and uncompressed

2011-07-17 Thread Martin Boßlet
> My understanding is that to convert the form of ecc key from compressed to > uncompressed and from uncompressed to compressed require the knowledge of > the ECC private key. > Is my understanding correct? You might want to have a look at sections 2.3.3 and 2.3.4 in http://www.secg.org/download/

Re: Converting ECC public key point-compressed and uncompressed

2011-07-17 Thread Erwin Himawan
I did dig arround more on the ecparam and ec options. Having a limited knowledge on cryptograpy and specifically ecc key algorithm, and experimenting with the CLI, I would like to clarify my understanding on coverting the form of ecc key from compressed to uncompressed and vice versa. My understa