On 08/03/2012 02:39 PM, René Korthaus wrote: > Hello list, > > I have a smartcard that gives me a PKCS#1 RSAPublicKey structure of the > public key on the card and I need to generate a X.509 > SubjectPublicKeyInfo structure from it. I already have a C++ wrapper > class that uses gnutls_pubkey_export to generate the > SubjectPublicKeyInfo structure. The question is how to import the > RSAPublicKey structure right.
There is no exported function in gnutls that can read the RSAPublicKey structure. gnutls_rsa_params_t reads the private key not the public (the documentation has a typo which I just fixed). You can read this DER structure by using libtasn1. Check lib/x509/key_decode.c, and the function _gnutls_x509_read_rsa_pubkey(). After extracting the values you can import them using gnutls_pubkey_import_rsa_raw(). regards, Nikos _______________________________________________ Help-gnutls mailing list Help-gnutls@gnu.org https://lists.gnu.org/mailman/listinfo/help-gnutls
