RSA sign/verify and hash generation functions

Nikos Mavrogiannopoulos nmav at
Wed Dec 15 01:53:21 CET 2010

Did you try the interface in abstract.h for public keys?

On Tue, Dec 14, 2010 at 7:54 PM, Murray S. Kucherawy <msk at> wrote:
> Looks like signing is now working, but I can't import a DER public key with this:
>        gnutls_x509_crt_init(&pubkey);
> = <pointer to DER data>;
>        key.size = <length of DER data, currently >;
>        gnutls_x509_crt_import(pubkey, &key, GNUTLS_X509_FMT_DER);
> The import call is returning -73, GNUTLS_E_ASN1_TAG_ERROR.
> What I'm actually importing is an DER encoded RSA public key, namely a PEM one with the "---BEGIN PUBLIC KEY---" removed and then the base64 decoding done.  It's a 1024 bit key, and post-decoding it's 162 bytes long.

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