James, I think Jeff may have misread your question as this FAQ: http://www.cryptopp.com/cgi-bin/fom.cgi?file=96. That is probably not what you are really asking, but before I can help, I need to know why do you need an asymmetric protocol where the public key can not be calculated from the private key?

----- Original Message ----- From: "Jeffrey Walton" <[EMAIL PROTECTED]>
To: "James" <[EMAIL PROTECTED]>
Cc: "Crypto++ Users" <[EMAIL PROTECTED]>
Sent: Friday, January 19, 2007 11:12 PM
Subject: Re: Asymmetric Keys



Signature Scheme with Recovery

On 1/18/07, James <[EMAIL PROTECTED]> wrote:

Hi All.  With the RSA and El Gamal asymmetric protocols the keys are
related in that the public key can be calculated from the private key.

Which of the Asymmetric protocols implemented by CryptoPP does NOT have
this ability, meaning, you cannot recover the public from the private
key?

Thanks, James

>



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