if you have a certificate in a X509 object, the x509.h header mentions the 
function:

EVP_PKEY *    X509_get_pubkey(X509 *x);


From: [email protected]
To: [email protected]
Subject: get public Key from a certificate
Date: Tue, 24 Feb 2009 10:29:42 +0000

hello
how can i get the public Key from a certificate ?
( please give me just the name of the function, for example i use to get a 
public key from a private key :
PrivKey = RSA_generate_key(512, RSA_F4, NULL, NULL);
      PubKey = RSAPublicKey_dup(PrivKey);
)
 if i send a certificate , i'm not oblige to send a public key , i deduce it 
from a a certificate (am i wrong ???!) )
best regards


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