I think I've found the answer myself:
openssl rsa -text -noout -modulus -pubin -in public_key.pem
or
openssl rsa -noout -modulus -pubin -in public_key.pem

On Mon, Mar 22, 2010 at 12:59 PM, Valerio Schiavoni
<[email protected]> wrote:
> Hello,
> what kind of informations can be extracted from the public_key ?
> In particular, i generate it like this:
>
> openssl rsa -pubout -in private_key.pem -out public_key.pem
>
> I know that from a private_key it's possible to extract many
> informations (as the modulus, or any other info (doing openssl rsa
> -text -in private_key.pem).
>
> Thanks,
> Valerio
>
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