#include <openssl/x509.h>
#include <openssl/bn.h>
#include <openssl/cms.h>
+#include <openssl/core_names.h>
+#include "internal/param_build.h"
#include "crypto/asn1.h"
#include "crypto/evp.h"
+#include "crypto/rsa.h"
#include "rsa_local.h"
#ifndef OPENSSL_NO_CMS
return RSA_check_key_ex(pkey->pkey.rsa, NULL);
}
+static size_t rsa_pkey_dirty_cnt(const EVP_PKEY *pkey)
+{
+ return pkey->pkey.rsa->dirty_cnt;
+}
+
+DEFINE_SPECIAL_STACK_OF_CONST(BIGNUM_const, BIGNUM)
+
+static void *rsa_pkey_export_to(const EVP_PKEY *pk, EVP_KEYMGMT *keymgmt,
+ int want_domainparams)
+{
+ RSA *rsa = pk->pkey.rsa;
+ OSSL_PARAM_BLD tmpl;
+ const BIGNUM *n = RSA_get0_n(rsa), *e = RSA_get0_e(rsa);
+ const BIGNUM *d = RSA_get0_d(rsa);
+ STACK_OF(BIGNUM_const) *primes = NULL, *exps = NULL, *coeffs = NULL;
+ int numprimes = 0, numexps = 0, numcoeffs = 0;
+ OSSL_PARAM *params = NULL;
+ void *provkey = NULL;
+
+ /*
+ * There are no domain parameters for RSA keys, or rather, they are
+ * included in the key data itself.
+ */
+ if (want_domainparams)
+ goto err;
+
+ /* Get all the primes and CRT params */
+ if ((primes = sk_BIGNUM_const_new_null()) == NULL
+ || (exps = sk_BIGNUM_const_new_null()) == NULL
+ || (coeffs = sk_BIGNUM_const_new_null()) == NULL)
+ goto err;
+
+ if (!rsa_get0_all_params(rsa, primes, exps, coeffs))
+ goto err;
+
+ /* Public parameters must always be present */
+ if (n == NULL || e == NULL)
+ goto err;
+
+ if (d != NULL) {
+ /* It's a private key, so we should have everything else too */
+ numprimes = sk_BIGNUM_const_num(primes);
+ numexps = sk_BIGNUM_const_num(exps);
+ numcoeffs = sk_BIGNUM_const_num(coeffs);
+
+ if (numprimes < 2 || numexps < 2 || numcoeffs < 1)
+ goto err;
+
+ /*
+ * assert that an OSSL_PARAM_BLD has enough space.
+ * (the current 10 places doesn't have space for multi-primes)
+ */
+ if (!ossl_assert(/* n, e */ 2 + /* d */ 1 + /* numprimes */ 1
+ + numprimes + numexps + numcoeffs
+ <= OSSL_PARAM_BLD_MAX))
+ goto err;
+ }
+
+ ossl_param_bld_init(&tmpl);
+ if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_RSA_N, n)
+ || !ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_RSA_E, e))
+ goto err;
+
+ if (d != NULL) {
+ int i;
+
+ if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_RSA_D, d))
+ goto err;
+
+ for (i = 0; i < numprimes; i++) {
+ const BIGNUM *num = sk_BIGNUM_const_value(primes, i);
+
+ if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_RSA_FACTOR,
+ num))
+ goto err;
+ }
+
+ for (i = 0; i < numexps; i++) {
+ const BIGNUM *num = sk_BIGNUM_const_value(exps, i);
+
+ if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_RSA_EXPONENT,
+ num))
+ goto err;
+ }
+
+ for (i = 0; i < numcoeffs; i++) {
+ const BIGNUM *num = sk_BIGNUM_const_value(coeffs, i);
+
+ if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_RSA_COEFFICIENT,
+ num))
+ goto err;
+ }
+ }
+
+ if ((params = ossl_param_bld_to_param(&tmpl)) == NULL)
+ goto err;
+
+ /* We export, the provider imports */
+ provkey = evp_keymgmt_importkey(keymgmt, params);
+
+ err:
+ sk_BIGNUM_const_free(primes);
+ sk_BIGNUM_const_free(exps);
+ sk_BIGNUM_const_free(coeffs);
+ ossl_param_bld_free(params);
+ return provkey;
+}
+
const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[2] = {
{
EVP_PKEY_RSA,
rsa_item_verify,
rsa_item_sign,
rsa_sig_info_set,
- rsa_pkey_check
+ rsa_pkey_check,
+
+ 0, 0,
+ 0, 0, 0, 0,
+
+ rsa_pkey_dirty_cnt,
+ rsa_pkey_export_to
},
{
rsa_item_verify,
rsa_item_sign,
0,
- rsa_pkey_check
+ rsa_pkey_check,
+
+ 0, 0,
+ 0, 0, 0, 0,
+
+ rsa_pkey_dirty_cnt,
+ rsa_pkey_export_to
};