This is how I read a RSA key from a string buffer
where private_key is char * terminated by a \0
RSA *pub_key=NULL;
BIO *mem_ptr=NULL;
EVP_PKEY *pkey = NULL;
mem_ptr = BIO_new(BIO_s_mem());
BIO_puts(mem_ptr, private_key);
pkey = PEM_read_bio_PrivateKey(mem_ptr, 0, 0, 0);
pub_key = EVP_PKEY_get1_RSA(pkey);
Hope this helps
- Sid
--- Niklas Olsson <[EMAIL PROTECTED]> wrote:
>
> Hi,
> I have been look through this mailing list to try to
> understand how to read
> the public key and encrypt my message.
>
> so far I think I should use
>
> PEM_read_bio_RSAPublicKey
> and
> RSA_public_encrypt
>
> I get the certificate in a buffer from the server
> (TLS - ServerHello
> message)
>
> I would think I should use
> BIO *in=NULL;
> in = BIO_new_mem_buf(cert, 1558); //cert if the
> buffer with the certifiate
> RSA *pKey=NULL;
> pKey = PEM_read_bio_RSAPublicKey(in,NULL, NULL,
> NULL);
>
> but pKey is always NULL, I thought maybe the in
> buffer should only be the
> public key so I copied that only, but again I only
> get a pKey that is NULL.
>
> How am I supposed to read my certificate and get a
> correct RSA *pKey?
>
> thanks!
>
>
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>
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