* https://www.openssl.org/source/license.html
*/
+/*
+ * DH low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/x509.h>
#include "dh_local.h"
#include <openssl/bn.h>
#include "crypto/asn1.h"
+#include "crypto/dh.h"
#include "crypto/evp.h"
#include <openssl/cms.h>
#include <openssl/core_names.h>
-#include "internal/param_build.h"
+#include <openssl/param_build.h>
+#include "internal/ffc.h"
/*
* i2d/d2i like DH parameter functions which use the appropriate routine for
ptype = V_ASN1_SEQUENCE;
pub_key = BN_to_ASN1_INTEGER(dh->pub_key, NULL);
- if (!pub_key)
+ if (pub_key == NULL)
goto err;
penclen = i2d_ASN1_INTEGER(pub_key, &penc);
const ASN1_STRING *pstr;
const X509_ALGOR *palg;
ASN1_INTEGER *privkey = NULL;
-
DH *dh = NULL;
if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
/* Get private key into integer */
prkey = BN_to_ASN1_INTEGER(pkey->pkey.dh->priv_key, NULL);
- if (!prkey) {
+ if (prkey == NULL) {
DHerr(DH_F_DH_PRIV_ENCODE, DH_R_BN_ERROR);
goto err;
}
else
pub_key = NULL;
- if (x->p == NULL || (ptype == 2 && priv_key == NULL)
+ if (x->params.p == NULL || (ptype == 2 && priv_key == NULL)
|| (ptype > 0 && pub_key == NULL)) {
reason = ERR_R_PASSED_NULL_PARAMETER;
goto err;
else
ktype = "DH Parameters";
- BIO_indent(bp, indent, 128);
- if (BIO_printf(bp, "%s: (%d bit)\n", ktype, BN_num_bits(x->p)) <= 0)
+ if (!BIO_indent(bp, indent, 128)
+ || BIO_printf(bp, "%s: (%d bit)\n", ktype, DH_bits(x)) <= 0)
goto err;
indent += 4;
if (!ASN1_bn_print(bp, "public-key:", pub_key, NULL, indent))
goto err;
- if (!ASN1_bn_print(bp, "prime:", x->p, NULL, indent))
- goto err;
- if (!ASN1_bn_print(bp, "generator:", x->g, NULL, indent))
- goto err;
- if (x->q && !ASN1_bn_print(bp, "subgroup order:", x->q, NULL, indent))
- goto err;
- if (x->j && !ASN1_bn_print(bp, "subgroup factor:", x->j, NULL, indent))
- goto err;
- if (x->seed) {
- int i;
- BIO_indent(bp, indent, 128);
- BIO_puts(bp, "seed:");
- for (i = 0; i < x->seedlen; i++) {
- if ((i % 15) == 0) {
- if (BIO_puts(bp, "\n") <= 0
- || !BIO_indent(bp, indent + 4, 128))
- goto err;
- }
- if (BIO_printf(bp, "%02x%s", x->seed[i],
- ((i + 1) == x->seedlen) ? "" : ":") <= 0)
- goto err;
- }
- if (BIO_write(bp, "\n", 1) <= 0)
- return 0;
- }
- if (x->counter && !ASN1_bn_print(bp, "counter:", x->counter, NULL, indent))
+ if (!ffc_params_print(bp, &x->params, indent))
goto err;
+
if (x->length != 0) {
- BIO_indent(bp, indent, 128);
- if (BIO_printf(bp, "recommended-private-length: %d bits\n",
- (int)x->length) <= 0)
+ if (!BIO_indent(bp, indent, 128)
+ || BIO_printf(bp, "recommended-private-length: %d bits\n",
+ (int)x->length) <= 0)
goto err;
}
static int dh_bits(const EVP_PKEY *pkey)
{
- return BN_num_bits(pkey->pkey.dh->p);
+ return DH_bits(pkey->pkey.dh);
}
static int dh_security_bits(const EVP_PKEY *pkey)
static int dh_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
{
- if (BN_cmp(a->pkey.dh->p, b->pkey.dh->p) ||
- BN_cmp(a->pkey.dh->g, b->pkey.dh->g))
- return 0;
- else if (a->ameth == &dhx_asn1_meth) {
- if (BN_cmp(a->pkey.dh->q, b->pkey.dh->q))
- return 0;
- }
- return 1;
-}
-
-static int int_dh_bn_cpy(BIGNUM **dst, const BIGNUM *src)
-{
- BIGNUM *a;
-
- /*
- * If source is read only just copy the pointer, so
- * we don't have to reallocate it.
- */
- if (src == NULL)
- a = NULL;
- else if (BN_get_flags(src, BN_FLG_STATIC_DATA)
- && !BN_get_flags(src, BN_FLG_MALLOCED))
- a = (BIGNUM *)src;
- else if ((a = BN_dup(src)) == NULL)
- return 0;
- BN_clear_free(*dst);
- *dst = a;
- return 1;
+ return ffc_params_cmp(&a->pkey.dh->params, &a->pkey.dh->params,
+ a->ameth != &dhx_asn1_meth);
}
static int int_dh_param_copy(DH *to, const DH *from, int is_x942)
{
if (is_x942 == -1)
- is_x942 = ! !from->q;
- if (!int_dh_bn_cpy(&to->p, from->p))
+ is_x942 = (from->params.q != NULL);
+ if (!ffc_params_copy(&to->params, &from->params))
return 0;
- if (!int_dh_bn_cpy(&to->g, from->g))
- return 0;
- if (is_x942) {
- if (!int_dh_bn_cpy(&to->q, from->q))
- return 0;
- if (!int_dh_bn_cpy(&to->j, from->j))
- return 0;
- OPENSSL_free(to->seed);
- to->seed = NULL;
- to->seedlen = 0;
- if (from->seed) {
- to->seed = OPENSSL_memdup(from->seed, from->seedlen);
- if (!to->seed)
- return 0;
- to->seedlen = from->seedlen;
- }
- } else
+ if (!is_x942)
to->length = from->length;
to->dirty_cnt++;
return 1;
static int dh_missing_parameters(const EVP_PKEY *a)
{
- if (a->pkey.dh == NULL || a->pkey.dh->p == NULL || a->pkey.dh->g == NULL)
- return 1;
- return 0;
+ return a->pkey.dh == NULL
+ || a->pkey.dh->params.p == NULL
+ || a->pkey.dh->params.g == NULL;
}
static int dh_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
return pkey->pkey.dh->dirty_cnt;
}
-static void *dh_pkey_export_to(const EVP_PKEY *pk, EVP_KEYMGMT *keymgmt)
+static int dh_pkey_export_to(const EVP_PKEY *from, void *to_keydata,
+ EVP_KEYMGMT *to_keymgmt, OPENSSL_CTX *libctx,
+ const char *propq)
{
- DH *dh = pk->pkey.dh;
- OSSL_PARAM_BLD tmpl;
+ DH *dh = from->pkey.dh;
+ OSSL_PARAM_BLD *tmpl;
const BIGNUM *p = DH_get0_p(dh), *g = DH_get0_g(dh), *q = DH_get0_q(dh);
const BIGNUM *pub_key = DH_get0_pub_key(dh);
const BIGNUM *priv_key = DH_get0_priv_key(dh);
- OSSL_PARAM *params;
- void *provkey = NULL;
+ OSSL_PARAM *params = NULL;
+ int selection = 0;
+ int rv = 0;
- if (p == NULL || g == NULL)
- return NULL;
+ /*
+ * If the DH method is foreign, then we can't be sure of anything, and
+ * can therefore not export or pretend to export.
+ */
+ if (dh_get_method(dh) != DH_OpenSSL())
+ return 0;
- ossl_param_bld_init(&tmpl);
- if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_FFC_P, p)
- || !ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_FFC_G, g))
- return NULL;
+ if (p == NULL || g == NULL)
+ return 0;
+ tmpl = OSSL_PARAM_BLD_new();
+ if (tmpl == NULL)
+ return 0;
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_P, p)
+ || !OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_G, g))
+ goto err;
if (q != NULL) {
- if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_FFC_Q, q))
- return NULL;
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_Q, q))
+ goto err;
}
-
- /*
- * This may be used to pass domain parameters only without any key data -
- * so "pub_key" is optional. We can never have a "priv_key" without a
- * corresponding "pub_key" though.
- */
+ selection |= OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS;
if (pub_key != NULL) {
- if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_DH_PUB_KEY, pub_key))
- return NULL;
-
- if (priv_key != NULL) {
- if (!ossl_param_bld_push_BN(&tmpl, OSSL_PKEY_PARAM_DH_PRIV_KEY,
- priv_key))
- return NULL;
- }
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_PUB_KEY, pub_key))
+ goto err;
+ selection |= OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
+ }
+ if (priv_key != NULL) {
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_PRIV_KEY,
+ priv_key))
+ goto err;
+ selection |= OSSL_KEYMGMT_SELECT_PRIVATE_KEY;
}
- params = ossl_param_bld_to_param(&tmpl);
+ if ((params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL)
+ goto err;
/* We export, the provider imports */
- provkey = evp_keymgmt_importkey(keymgmt, params);
+ rv = evp_keymgmt_import(to_keymgmt, to_keydata, selection, params);
- ossl_param_bld_free(params);
- return provkey;
+ OSSL_PARAM_BLD_free_params(params);
+err:
+ OSSL_PARAM_BLD_free(tmpl);
+ return rv;
+}
+
+static int dh_pkey_import_from(const OSSL_PARAM params[], void *vpctx)
+{
+ EVP_PKEY_CTX *pctx = vpctx;
+ EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(pctx);
+ DH *dh = dh_new_with_libctx(pctx->libctx);
+
+ if (dh == NULL) {
+ ERR_raise(ERR_LIB_DH, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ if (!dh_ffc_params_fromdata(dh, params)
+ || !dh_key_fromdata(dh, params)
+ || !EVP_PKEY_assign_DH(pkey, dh)) {
+ DH_free(dh);
+ return 0;
+ }
+ return 1;
}
const EVP_PKEY_ASN1_METHOD dh_asn1_meth = {
dh_pkey_dirty_cnt,
dh_pkey_export_to,
+ dh_pkey_import_from,
};
const EVP_PKEY_ASN1_METHOD dhx_asn1_meth = {
goto err;
pk = EVP_PKEY_CTX_get0_pkey(pctx);
- if (!pk)
+ if (pk == NULL)
goto err;
if (pk->type != EVP_PKEY_DHX)
goto err;
/* We have parameters now set public key */
plen = ASN1_STRING_length(pubkey);
p = ASN1_STRING_get0_data(pubkey);
- if (!p || !plen)
+ if (p == NULL || plen == 0)
goto err;
if ((public_key = d2i_ASN1_INTEGER(NULL, &p, plen)) == NULL) {
static int dh_cms_decrypt(CMS_RecipientInfo *ri)
{
EVP_PKEY_CTX *pctx;
+
pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
- if (!pctx)
+
+ if (pctx == NULL)
return 0;
/* See if we need to set peer key */
if (!EVP_PKEY_CTX_get0_peerkey(pctx)) {
int rv = 0;
int kdf_type, wrap_nid;
const EVP_MD *kdf_md;
+
pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
- if (!pctx)
+ if (pctx == NULL)
return 0;
/* Get ephemeral key */
pkey = EVP_PKEY_CTX_get0_pkey(pctx);
/* Is everything uninitialised? */
if (aoid == OBJ_nid2obj(NID_undef)) {
ASN1_INTEGER *pubk = BN_to_ASN1_INTEGER(pkey->pkey.dh->pub_key, NULL);
- if (!pubk)
+
+ if (pubk == NULL)
goto err;
/* Set the key */
*/
penc = NULL;
penclen = i2d_X509_ALGOR(wrap_alg, &penc);
- if (!penc || !penclen)
+ if (penc == NULL || penclen == 0)
goto err;
wrap_str = ASN1_STRING_new();
if (wrap_str == NULL)
err:
OPENSSL_free(penc);
X509_ALGOR_free(wrap_alg);
+ OPENSSL_free(dukm);
return rv;
}
projects / openssl.git / blobdiff