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/*
This file is part of tgl-library
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Copyright Ben Wiederhake 2015
*/
#include "../config.h"
#ifndef TGL_AVOID_OPENSSL
//#include <stddef.h> /* NULL */
#include <openssl/rsa.h>
#include <openssl/pem.h>
#include "bn.h"
#include "meta.h"
#include "rsa_pem.h"
TGLC_WRAPPER_ASSOC(rsa,RSA)
// TODO: Refactor crucial struct-identity into its own header.
TGLC_WRAPPER_ASSOC(bn,BIGNUM)
/*
* Note: Since OpenSSL version 1.1.0-pre5 the RSA struct (rsa_st) is opaque,
* see https://wiki.openssl.org/index.php/OpenSSL_1.1.0_Changes
*/
TGLC_rsa *TGLC_rsa_new (unsigned long e, int n_bytes, const unsigned char *n) {
RSA *ret = RSA_new ();
BIGNUM *ret_e = unwrap_bn (TGLC_bn_new ());
BIGNUM *ret_n = unwrap_bn (TGLC_bn_bin2bn (n, n_bytes, NULL));
RSA_set0_key (ret, ret_n, ret_e, NULL);
TGLC_bn_set_word (wrap_bn (ret_e), e);
return wrap_rsa (ret);
}
#define RSA_GETTER(M) \
TGLC_bn *TGLC_rsa_ ## M (TGLC_rsa *key) { \
BIGNUM *rsa_n, *rsa_e, *rsa_d; \
RSA_get0_key(unwrap_rsa (key), \
(const BIGNUM **) &rsa_n, \
(const BIGNUM **) &rsa_e, \
(const BIGNUM **) &rsa_d); \
return wrap_bn (rsa_ ## M); \
}
RSA_GETTER(n);
RSA_GETTER(e);
void TGLC_rsa_free (TGLC_rsa *p) {
RSA_free (unwrap_rsa (p));
}
TGLC_rsa *TGLC_pem_read_RSAPublicKey (FILE *fp) {
return wrap_rsa (PEM_read_RSAPublicKey (fp, NULL, NULL, NULL));
}
#endif
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