-/* evp_pkey.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 1999.
- */
-/* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 1999-2021 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/x509.h>
#include <openssl/rand.h>
+#include <openssl/encoder.h>
+#include <openssl/decoder.h>
+#include "internal/provider.h"
+#include "internal/sizes.h"
+#include "crypto/asn1.h"
+#include "crypto/evp.h"
+#include "crypto/x509.h"
/* Extract a private key from a PKCS8 structure */
-EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
+EVP_PKEY *evp_pkcs82pkey_legacy(const PKCS8_PRIV_KEY_INFO *p8, OSSL_LIB_CTX *libctx,
+ const char *propq)
{
- EVP_PKEY *pkey;
-#ifndef NO_RSA
- RSA *rsa;
-#endif
-#ifndef NO_DSA
- DSA *dsa;
- ASN1_INTEGER *dsapriv;
- STACK *ndsa;
- BN_CTX *ctx;
- int plen;
-#endif
- X509_ALGOR *a;
- unsigned char *p;
- int pkeylen;
- char obj_tmp[80];
-
- switch (p8->broken) {
- case PKCS8_OK:
- p = p8->pkey->value.octet_string->data;
- pkeylen = p8->pkey->value.octet_string->length;
- break;
-
- case PKCS8_NO_OCTET:
- p = p8->pkey->value.sequence->data;
- pkeylen = p8->pkey->value.sequence->length;
- break;
-
- default:
- EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
- return NULL;
- break;
- }
- if (!(pkey = EVP_PKEY_new())) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- a = p8->pkeyalg;
- switch (OBJ_obj2nid(a->algorithm))
- {
-#ifndef NO_RSA
- case NID_rsaEncryption:
- if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
- }
- EVP_PKEY_assign_RSA (pkey, rsa);
- break;
-#endif
-#ifndef NO_DSA
- case NID_dsa:
- /* PKCS#8 DSA is weird: you just get a private key integer
- * and parameters in the AlgorithmIdentifier the pubkey must
- * be recalculated.
- */
-
- /* Check for broken Netscape Database DSA PKCS#8, UGH! */
- if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
- if(!(ndsa = ASN1_seq_unpack(p, pkeylen,
- (char *(*)())d2i_ASN1_INTEGER,
- ASN1_STRING_free))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
- }
- if(sk_num(ndsa) != 2 ) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- sk_pop_free(ndsa, ASN1_STRING_free);
- return NULL;
- }
- dsapriv = (ASN1_INTEGER *) sk_pop(ndsa);
- sk_pop_free(ndsa, ASN1_STRING_free);
- } else if (!(dsapriv=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
- }
- /* Retrieve parameters */
- if (a->parameter->type != V_ASN1_SEQUENCE) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_NO_DSA_PARAMETERS);
- return NULL;
- }
- p = a->parameter->value.sequence->data;
- plen = a->parameter->value.sequence->length;
- if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
- return NULL;
- }
- /* We have parameters now set private key */
- if (!(dsa->priv_key = ASN1_INTEGER_to_BN(dsapriv, NULL))) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
- DSA_free (dsa);
- return NULL;
- }
- /* Calculate public key (ouch!) */
- if (!(dsa->pub_key = BN_new())) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- DSA_free (dsa);
- return NULL;
- }
- if (!(ctx = BN_CTX_new())) {
- EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
- DSA_free (dsa);
- return NULL;
- }
-
- if (!BN_mod_exp(dsa->pub_key, dsa->g,
- dsa->priv_key, dsa->p, ctx)) {
-
- EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
- BN_CTX_free (ctx);
- DSA_free (dsa);
- return NULL;
- }
-
- EVP_PKEY_assign_DSA (pkey, dsa);
- BN_CTX_free (ctx);
- break;
-#endif
- default:
- EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
- if (!a->algorithm) strcpy (obj_tmp, "NULL");
- else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
- ERR_add_error_data(2, "TYPE=", obj_tmp);
- EVP_PKEY_free (pkey);
- return NULL;
- }
- return pkey;
+ EVP_PKEY *pkey = NULL;
+ const ASN1_OBJECT *algoid;
+ char obj_tmp[80];
+
+ if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
+ return NULL;
+
+ if ((pkey = EVP_PKEY_new()) == NULL) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB);
+ return NULL;
+ }
+
+ if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) {
+ i2t_ASN1_OBJECT(obj_tmp, 80, algoid);
+ ERR_raise_data(ERR_LIB_EVP, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM,
+ "TYPE=%s", obj_tmp);
+ goto error;
+ }
+
+ if (pkey->ameth->priv_decode_ex != NULL) {
+ if (!pkey->ameth->priv_decode_ex(pkey, p8, libctx, propq))
+ goto error;
+ } else if (pkey->ameth->priv_decode != NULL) {
+ if (!pkey->ameth->priv_decode(pkey, p8)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_PRIVATE_KEY_DECODE_ERROR);
+ goto error;
+ }
+ } else {
+ ERR_raise(ERR_LIB_EVP, EVP_R_METHOD_NOT_SUPPORTED);
+ goto error;
+ }
+
+ return pkey;
+
+ error:
+ EVP_PKEY_free(pkey);
+ return NULL;
+}
+
+EVP_PKEY *EVP_PKCS82PKEY_ex(const PKCS8_PRIV_KEY_INFO *p8, OSSL_LIB_CTX *libctx,
+ const char *propq)
+{
+ EVP_PKEY *pkey = NULL;
+ const unsigned char *p8_data = NULL;
+ unsigned char *encoded_data = NULL;
+ int encoded_len;
+ int selection;
+ size_t len;
+ OSSL_DECODER_CTX *dctx = NULL;
+ const ASN1_OBJECT *algoid = NULL;
+ char keytype[OSSL_MAX_NAME_SIZE];
+
+ if (p8 == NULL
+ || !PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8)
+ || !OBJ_obj2txt(keytype, sizeof(keytype), algoid, 0))
+ return NULL;
+
+ if ((encoded_len = i2d_PKCS8_PRIV_KEY_INFO(p8, &encoded_data)) <= 0
+ || encoded_data == NULL)
+ return NULL;
+
+ p8_data = encoded_data;
+ len = encoded_len;
+ selection = EVP_PKEY_KEYPAIR | EVP_PKEY_KEY_PARAMETERS;
+ dctx = OSSL_DECODER_CTX_new_for_pkey(&pkey, "DER", "PrivateKeyInfo",
+ keytype, selection, libctx, propq);
+
+ if (dctx != NULL && OSSL_DECODER_CTX_get_num_decoders(dctx) == 0) {
+ OSSL_DECODER_CTX_free(dctx);
+
+ /*
+ * This could happen if OBJ_obj2txt() returned a text OID and the
+ * decoder has not got that OID as an alias. We fall back to a NULL
+ * keytype
+ */
+ dctx = OSSL_DECODER_CTX_new_for_pkey(&pkey, "DER", "PrivateKeyInfo",
+ NULL, selection, libctx, propq);
+ }
+
+ if (dctx == NULL
+ || !OSSL_DECODER_from_data(dctx, &p8_data, &len))
+ /* try legacy */
+ pkey = evp_pkcs82pkey_legacy(p8, libctx, propq);
+
+ OPENSSL_clear_free(encoded_data, encoded_len);
+ OSSL_DECODER_CTX_free(dctx);
+ return pkey;
+}
+
+EVP_PKEY *EVP_PKCS82PKEY(const PKCS8_PRIV_KEY_INFO *p8)
+{
+ return EVP_PKCS82PKEY_ex(p8, NULL, NULL);
}
/* Turn a private key into a PKCS8 structure */
-PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
+PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(const EVP_PKEY *pkey)
+{
+ PKCS8_PRIV_KEY_INFO *p8 = NULL;
+ OSSL_ENCODER_CTX *ctx = NULL;
+
+ /*
+ * The implementation for provider-native keys is to encode the
+ * key to a DER encoded PKCS#8 structure, then convert it to a
+ * PKCS8_PRIV_KEY_INFO with good old d2i functions.
+ */
+ if (evp_pkey_is_provided(pkey)) {
+ int selection = OSSL_KEYMGMT_SELECT_ALL;
+ unsigned char *der = NULL;
+ size_t derlen = 0;
+ const unsigned char *pp;
+
+ if ((ctx = OSSL_ENCODER_CTX_new_for_pkey(pkey, selection,
+ "DER", "PrivateKeyInfo",
+ NULL)) == NULL
+ || !OSSL_ENCODER_to_data(ctx, &der, &derlen))
+ goto error;
+
+ pp = der;
+ p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &pp, (long)derlen);
+ OPENSSL_free(der);
+ if (p8 == NULL)
+ goto error;
+ } else {
+ p8 = PKCS8_PRIV_KEY_INFO_new();
+ if (p8 == NULL) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_ASN1_LIB);
+ return NULL;
+ }
+
+ if (pkey->ameth != NULL) {
+ if (pkey->ameth->priv_encode != NULL) {
+ if (!pkey->ameth->priv_encode(p8, pkey)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_PRIVATE_KEY_ENCODE_ERROR);
+ goto error;
+ }
+ } else {
+ ERR_raise(ERR_LIB_EVP, EVP_R_METHOD_NOT_SUPPORTED);
+ goto error;
+ }
+ } else {
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
+ goto error;
+ }
+ }
+ goto end;
+ error:
+ PKCS8_PRIV_KEY_INFO_free(p8);
+ p8 = NULL;
+ end:
+ OSSL_ENCODER_CTX_free(ctx);
+ return p8;
+
+}
+
+/* EVP_PKEY attribute functions */
+
+int EVP_PKEY_get_attr_count(const EVP_PKEY *key)
{
- PKCS8_PRIV_KEY_INFO *p8;
-#ifndef NO_DSA
- ASN1_INTEGER *dpkey;
- unsigned char *p, *q;
- int len;
-#endif
- if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- ASN1_INTEGER_set (p8->version, 0);
- if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
- switch (EVP_PKEY_type(pkey->type)) {
-#ifndef NO_RSA
- case EVP_PKEY_RSA:
-
- p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
- p8->pkeyalg->parameter->type = V_ASN1_NULL;
- if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
- &p8->pkey->value.octet_string)) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
- break;
-#endif
-#ifndef NO_DSA
- case EVP_PKEY_DSA:
- p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
-
- /* get paramaters and place in AlgorithmIdentifier */
- len = i2d_DSAparams (pkey->pkey.dsa, NULL);
- if (!(p = Malloc(len))) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
- q = p;
- i2d_DSAparams (pkey->pkey.dsa, &q);
- p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
- p8->pkeyalg->parameter->value.sequence = ASN1_STRING_new();
- ASN1_STRING_set(p8->pkeyalg->parameter->value.sequence, p, len);
- Free(p);
- /* Get private key into an integer and pack */
- if (!(dpkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
-
- if (!ASN1_pack_string((char *)dpkey, i2d_ASN1_INTEGER,
- &p8->pkey->value.octet_string)) {
- EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
- M_ASN1_INTEGER_free (dpkey);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
- M_ASN1_INTEGER_free (dpkey);
- break;
-#endif
- default:
- EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
- PKCS8_PRIV_KEY_INFO_free (p8);
- return NULL;
- }
- p8->pkey->type = V_ASN1_OCTET_STRING;
- RAND_seed (p8->pkey->value.octet_string->data,
- p8->pkey->value.octet_string->length);
- return p8;
+ return X509at_get_attr_count(key->attributes);
}
-PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
+int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, int lastpos)
{
- switch (broken) {
-
- case PKCS8_OK:
- p8->broken = PKCS8_OK;
- return p8;
- break;
-
- case PKCS8_NO_OCTET:
- p8->broken = PKCS8_NO_OCTET;
- p8->pkey->type = V_ASN1_SEQUENCE;
- return p8;
- break;
-
- default:
- EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
- return NULL;
- break;
-
- }
+ return X509at_get_attr_by_NID(key->attributes, nid, lastpos);
}
+int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, const ASN1_OBJECT *obj,
+ int lastpos)
+{
+ return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos);
+}
+X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
+{
+ return X509at_get_attr(key->attributes, loc);
+}
+
+X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
+{
+ return X509at_delete_attr(key->attributes, loc);
+}
+
+int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
+{
+ if (X509at_add1_attr(&key->attributes, attr))
+ return 1;
+ return 0;
+}
+
+int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key,
+ const ASN1_OBJECT *obj, int type,
+ const unsigned char *bytes, int len)
+{
+ if (X509at_add1_attr_by_OBJ(&key->attributes, obj, type, bytes, len))
+ return 1;
+ return 0;
+}
+
+int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key,
+ int nid, int type,
+ const unsigned char *bytes, int len)
+{
+ if (X509at_add1_attr_by_NID(&key->attributes, nid, type, bytes, len))
+ return 1;
+ return 0;
+}
+
+int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key,
+ const char *attrname, int type,
+ const unsigned char *bytes, int len)
+{
+ if (X509at_add1_attr_by_txt(&key->attributes, attrname, type, bytes, len))
+ return 1;
+ return 0;
+}
+
+const char *EVP_PKEY_get0_type_name(const EVP_PKEY *key)
+{
+ const EVP_PKEY_ASN1_METHOD *ameth;
+ const char *name = NULL;
+
+ if (key->keymgmt != NULL)
+ return EVP_KEYMGMT_get0_name(key->keymgmt);
+
+ /* Otherwise fallback to legacy */
+ ameth = EVP_PKEY_get0_asn1(key);
+ if (ameth != NULL)
+ EVP_PKEY_asn1_get0_info(NULL, NULL,
+ NULL, NULL, &name, ameth);
+
+ return name;
+}
+
+const OSSL_PROVIDER *EVP_PKEY_get0_provider(const EVP_PKEY *key)
+{
+ if (evp_pkey_is_provided(key))
+ return EVP_KEYMGMT_get0_provider(key->keymgmt);
+ return NULL;
+}
projects / openssl.git / blobdiff