On Mon, Dec 21, 2015 at 09:29:03PM -0800, Stephen Kou wrote:
> OpenSSL has the higher-level EVP_PKEY_* functions which work abstracts
> the public key cryptography algorithms. However, sometimes a EVP_PKEY*
> only has a public key. How could I check if a given EVP_PKEY* contains
> a private key?
len = i2d_PrivateKey(key, NULL);
if (len <= 0) {
/* No private key, or error determining its DER length */
} else {
/* Private key available */
}
--
Viktor.
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