/*
- * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2020 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
#include <stdio.h>
#include "internal/cryptlib.h"
#include "internal/refcount.h"
+#include "internal/namemap.h"
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/objects.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/dh.h>
+#include <openssl/ec.h>
#include <openssl/cmac.h>
#include <openssl/engine.h>
#include <openssl/params.h>
-#include <openssl/serializer.h>
+#include <openssl/param_build.h>
+#include <openssl/encoder.h>
#include <openssl/core_names.h>
+#include "internal/ffc.h"
#include "crypto/asn1.h"
#include "crypto/evp.h"
+#include "crypto/ec.h"
+#include "crypto/ecx.h"
#include "internal/provider.h"
#include "evp_local.h"
+#include "crypto/ec.h"
+
+#include "e_os.h" /* strcasecmp on Windows */
+
+static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str,
+ int len, EVP_KEYMGMT *keymgmt);
static void evp_pkey_free_it(EVP_PKEY *key);
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
+
+/* The type of parameters selected in key parameter functions */
+# define SELECT_PARAMETERS OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS
int EVP_PKEY_bits(const EVP_PKEY *pkey)
{
+ int size = 0;
+
if (pkey != NULL) {
- if (pkey->ameth == NULL)
- return pkey->cache.bits;
- else if (pkey->ameth->pkey_bits)
- return pkey->ameth->pkey_bits(pkey);
+ size = pkey->cache.bits;
+ if (pkey->ameth != NULL && pkey->ameth->pkey_bits != NULL)
+ size = pkey->ameth->pkey_bits(pkey);
}
- return 0;
+ return size < 0 ? 0 : size;
}
int EVP_PKEY_security_bits(const EVP_PKEY *pkey)
{
- if (pkey == NULL)
- return 0;
- if (pkey->ameth == NULL)
- return pkey->cache.security_bits;
- if (pkey->ameth->pkey_security_bits == NULL)
- return -2;
- return pkey->ameth->pkey_security_bits(pkey);
+ int size = 0;
+
+ if (pkey != NULL) {
+ size = pkey->cache.security_bits;
+ if (pkey->ameth != NULL && pkey->ameth->pkey_security_bits != NULL)
+ size = pkey->ameth->pkey_security_bits(pkey);
+ }
+ return size < 0 ? 0 : size;
}
int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
return 0;
}
+int EVP_PKEY_set_ex_data(EVP_PKEY *key, int idx, void *arg)
+{
+ return CRYPTO_set_ex_data(&key->ex_data, idx, arg);
+}
+
+void *EVP_PKEY_get_ex_data(const EVP_PKEY *key, int idx)
+{
+ return CRYPTO_get_ex_data(&key->ex_data, idx);
+}
+
int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
{
/*
- * TODO: clean up legacy stuff from this function when legacy support
- * is gone.
+ * Clean up legacy stuff from this function when legacy support is gone.
+ */
+
+ /*
+ * If |to| is a legacy key and |from| isn't, we must downgrade |from|.
+ * If that fails, this function fails.
*/
+ if (evp_pkey_is_legacy(to) && evp_pkey_is_provided(from))
+ if (!evp_pkey_downgrade((EVP_PKEY *)from))
+ return 0;
/*
- * Only check that type match this early when both keys are legacy.
- * If either of them is provided, we let evp_keymgmt_util_copy()
- * do this check, after having exported either of them that isn't
- * provided.
+ * Make sure |to| is typed. Content is less important at this early
+ * stage.
+ *
+ * 1. If |to| is untyped, assign |from|'s key type to it.
+ * 2. If |to| contains a legacy key, compare its |type| to |from|'s.
+ * (|from| was already downgraded above)
+ *
+ * If |to| is a provided key, there's nothing more to do here, functions
+ * like evp_keymgmt_util_copy() and evp_pkey_export_to_provider() called
+ * further down help us find out if they are the same or not.
*/
- if (to->keymgmt == NULL && from->keymgmt == NULL) {
- if (to->type == EVP_PKEY_NONE) {
+ if (evp_pkey_is_blank(to)) {
+ if (evp_pkey_is_legacy(from)) {
if (EVP_PKEY_set_type(to, from->type) == 0)
return 0;
- } else if (to->type != from->type) {
- EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_KEY_TYPES);
+ } else {
+ if (EVP_PKEY_set_type_by_keymgmt(to, from->keymgmt) == 0)
+ return 0;
+ }
+ } else if (evp_pkey_is_legacy(to)) {
+ if (to->type != from->type) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES);
goto err;
}
}
if (EVP_PKEY_missing_parameters(from)) {
- EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_MISSING_PARAMETERS);
+ ERR_raise(ERR_LIB_EVP, EVP_R_MISSING_PARAMETERS);
goto err;
}
if (!EVP_PKEY_missing_parameters(to)) {
- if (EVP_PKEY_cmp_parameters(to, from) == 1)
+ if (EVP_PKEY_parameters_eq(to, from) == 1)
return 1;
- EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS, EVP_R_DIFFERENT_PARAMETERS);
+ ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_PARAMETERS);
return 0;
}
- /*
- * If |from| is provided, we upgrade |to| to be provided as well.
- * This drops the legacy key from |to|.
- * evp_pkey_upgrade_to_provider() checks if |to| is already provided,
- * we don't need to do that here.
- *
- * TODO(3.0) We should investigate if that's too aggressive and make
- * this scenario unsupported instead.
- */
- if (from->keymgmt != NULL) {
- EVP_KEYMGMT *tmp_keymgmt = from->keymgmt;
-
- /*
- * The returned pointer is known to be cached, so we don't have to
- * save it. However, if it's NULL, something went wrong and we can't
- * copy.
- */
- if (evp_pkey_upgrade_to_provider(to, NULL,
- &tmp_keymgmt, NULL) == NULL) {
- ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
- return 0;
- }
- }
-
/* For purely provided keys, we just call the keymgmt utility */
if (to->keymgmt != NULL && from->keymgmt != NULL)
- return evp_keymgmt_util_copy(to, (EVP_PKEY *)from,
- OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
+ return evp_keymgmt_util_copy(to, (EVP_PKEY *)from, SELECT_PARAMETERS);
/*
* If |to| is provided, we know that |from| is legacy at this point.
evp_pkey_export_to_provider((EVP_PKEY *)from, NULL, &to_keymgmt,
NULL);
+ /*
+ * If we get a NULL, it could be an internal error, or it could be
+ * that there's a key mismatch. We're pretending the latter...
+ */
if (from_keydata == NULL) {
- ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
+ ERR_raise(ERR_LIB_EVP, EVP_R_DIFFERENT_KEY_TYPES);
return 0;
}
return evp_keymgmt_copy(to->keymgmt, to->keydata, from_keydata,
- OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
+ SELECT_PARAMETERS);
}
/* Both keys are legacy */
{
if (pkey != NULL) {
if (pkey->keymgmt != NULL)
- return !evp_keymgmt_util_has((EVP_PKEY *)pkey,
- OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
+ return !evp_keymgmt_util_has((EVP_PKEY *)pkey, SELECT_PARAMETERS);
else if (pkey->ameth != NULL && pkey->ameth->param_missing != NULL)
return pkey->ameth->param_missing(pkey);
}
void *keydata1 = NULL, *keydata2 = NULL, *tmp_keydata = NULL;
/* If none of them are provided, this function shouldn't have been called */
- if (!ossl_assert(a->keymgmt != NULL || b->keymgmt != NULL))
+ if (!ossl_assert(evp_pkey_is_provided(a) || evp_pkey_is_provided(b)))
return -2;
/* For purely provided keys, we just call the keymgmt utility */
- if (a->keymgmt != NULL && b->keymgmt != NULL)
+ if (evp_pkey_is_provided(a) && evp_pkey_is_provided(b))
return evp_keymgmt_util_match((EVP_PKEY *)a, (EVP_PKEY *)b, selection);
/*
- * Here, we know that we have a mixture of legacy and provided keys.
- * Try cross export and compare the resulting key data.
+ * At this point, one of them is provided, the other not. This allows
+ * us to compare types using legacy NIDs.
+ */
+ if (evp_pkey_is_legacy(a)
+ && !EVP_KEYMGMT_is_a(b->keymgmt, OBJ_nid2sn(a->type)))
+ return -1; /* not the same key type */
+ if (evp_pkey_is_legacy(b)
+ && !EVP_KEYMGMT_is_a(a->keymgmt, OBJ_nid2sn(b->type)))
+ return -1; /* not the same key type */
+
+ /*
+ * We've determined that they both are the same keytype, so the next
+ * step is to do a bit of cross export to ensure we have keydata for
+ * both keys in the same keymgmt.
*/
keymgmt1 = a->keymgmt;
keydata1 = a->keydata;
keymgmt2 = b->keymgmt;
keydata2 = b->keydata;
- if ((keymgmt1 == NULL
- && !EVP_KEYMGMT_is_a(keymgmt2, OBJ_nid2sn(a->type)))
- || (keymgmt2 == NULL
- && !EVP_KEYMGMT_is_a(keymgmt1, OBJ_nid2sn(b->type))))
- return -1; /* not the same key type */
-
if (keymgmt2 != NULL && keymgmt2->match != NULL) {
tmp_keydata =
evp_pkey_export_to_provider((EVP_PKEY *)a, NULL, &keymgmt2, NULL);
if (keymgmt1 != keymgmt2)
return -2;
+ /* If the keymgmt implementations are NULL, the export failed */
+ if (keymgmt1 == NULL)
+ return -2;
+
return evp_keymgmt_match(keymgmt1, keydata1, keydata2, selection);
}
int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
+{
+ return EVP_PKEY_parameters_eq(a, b);
+}
+
+int EVP_PKEY_parameters_eq(const EVP_PKEY *a, const EVP_PKEY *b)
{
/*
* TODO: clean up legacy stuff from this function when legacy support
*/
if (a->keymgmt != NULL || b->keymgmt != NULL)
- return evp_pkey_cmp_any(a, b, OSSL_KEYMGMT_SELECT_ALL_PARAMETERS);
+ return evp_pkey_cmp_any(a, b, SELECT_PARAMETERS);
/* All legacy keys */
if (a->type != b->type)
}
int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
+{
+ return EVP_PKEY_eq(a, b);
+}
+
+int EVP_PKEY_eq(const EVP_PKEY *a, const EVP_PKEY *b)
{
/*
* TODO: clean up legacy stuff from this function when legacy support
*/
if (a->keymgmt != NULL || b->keymgmt != NULL)
- return evp_pkey_cmp_any(a, b,
- OSSL_KEYMGMT_SELECT_ALL_PARAMETERS
- | OSSL_KEYMGMT_SELECT_PUBLIC_KEY);
+ return evp_pkey_cmp_any(a, b, (SELECT_PARAMETERS
+ | OSSL_KEYMGMT_SELECT_PUBLIC_KEY));
/* All legacy keys */
if (a->type != b->type)
}
-/*
- * Setup a public key ASN1 method and ENGINE from a NID or a string. If pkey
- * is NULL just return 1 or 0 if the algorithm exists.
- */
-
-static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str,
- int len)
+static EVP_PKEY *new_raw_key_int(OSSL_LIB_CTX *libctx,
+ const char *strtype,
+ const char *propq,
+ int nidtype,
+ ENGINE *e,
+ const unsigned char *key,
+ size_t len,
+ int key_is_priv)
{
- const EVP_PKEY_ASN1_METHOD *ameth;
- ENGINE **eptr = (e == NULL) ? &e : NULL;
+ EVP_PKEY *pkey = NULL;
+ EVP_PKEY_CTX *ctx = NULL;
+ const EVP_PKEY_ASN1_METHOD *ameth = NULL;
+ int result = 0;
- if (pkey) {
- if (pkey->pkey.ptr)
- evp_pkey_free_it(pkey);
- /*
- * If key type matches and a method exists then this lookup has
- * succeeded once so just indicate success.
- */
- if ((type == pkey->save_type) && pkey->ameth)
- return 1;
# ifndef OPENSSL_NO_ENGINE
- /* If we have ENGINEs release them */
- ENGINE_finish(pkey->engine);
- pkey->engine = NULL;
- ENGINE_finish(pkey->pmeth_engine);
- pkey->pmeth_engine = NULL;
-# endif
+ /* Check if there is an Engine for this type */
+ if (e == NULL) {
+ ENGINE *tmpe = NULL;
+
+ if (strtype != NULL)
+ ameth = EVP_PKEY_asn1_find_str(&tmpe, strtype, -1);
+ else if (nidtype != EVP_PKEY_NONE)
+ ameth = EVP_PKEY_asn1_find(&tmpe, nidtype);
+
+ /* If tmpe is NULL then no engine is claiming to support this type */
+ if (tmpe == NULL)
+ ameth = NULL;
+
+ ENGINE_finish(tmpe);
}
- if (str)
- ameth = EVP_PKEY_asn1_find_str(eptr, str, len);
- else
- ameth = EVP_PKEY_asn1_find(eptr, type);
-# ifndef OPENSSL_NO_ENGINE
- if (pkey == NULL && eptr != NULL)
- ENGINE_finish(e);
# endif
- if (ameth == NULL) {
- EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM);
- return 0;
- }
- if (pkey) {
- pkey->ameth = ameth;
- pkey->engine = e;
- pkey->type = pkey->ameth->pkey_id;
- pkey->save_type = type;
+ if (e == NULL && ameth == NULL) {
+ /*
+ * No engine is claiming to support this type, so lets see if we have
+ * a provider.
+ */
+ ctx = EVP_PKEY_CTX_new_from_name(libctx,
+ strtype != NULL ? strtype
+ : OBJ_nid2sn(nidtype),
+ propq);
+ if (ctx == NULL)
+ goto err;
+ /* May fail if no provider available */
+ ERR_set_mark();
+ if (EVP_PKEY_key_fromdata_init(ctx) == 1) {
+ OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ ERR_clear_last_mark();
+ params[0] = OSSL_PARAM_construct_octet_string(
+ key_is_priv ? OSSL_PKEY_PARAM_PRIV_KEY
+ : OSSL_PKEY_PARAM_PUB_KEY,
+ (void *)key, len);
+
+ if (EVP_PKEY_fromdata(ctx, &pkey, params) != 1) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
+ goto err;
+ }
+
+ EVP_PKEY_CTX_free(ctx);
+
+ return pkey;
+ }
+ ERR_pop_to_mark();
+ /* else not supported so fallback to legacy */
}
- return 1;
-}
-EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e,
- const unsigned char *priv,
- size_t len)
-{
- EVP_PKEY *ret = EVP_PKEY_new();
+ /* Legacy code path */
- if (ret == NULL
- || !pkey_set_type(ret, e, type, NULL, -1)) {
- /* EVPerr already called */
+ pkey = EVP_PKEY_new();
+ if (pkey == NULL) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
goto err;
}
- if (ret->ameth->set_priv_key == NULL) {
- EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ if (!pkey_set_type(pkey, e, nidtype, strtype, -1, NULL)) {
+ /* EVPerr already called */
goto err;
}
- if (!ret->ameth->set_priv_key(ret, priv, len)) {
- EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PRIVATE_KEY, EVP_R_KEY_SETUP_FAILED);
+ if (!ossl_assert(pkey->ameth != NULL))
goto err;
- }
- return ret;
+ if (key_is_priv) {
+ if (pkey->ameth->set_priv_key == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ goto err;
+ }
+
+ if (!pkey->ameth->set_priv_key(pkey, key, len)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
+ goto err;
+ }
+ } else {
+ if (pkey->ameth->set_pub_key == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ goto err;
+ }
+
+ if (!pkey->ameth->set_pub_key(pkey, key, len)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
+ goto err;
+ }
+ }
+ result = 1;
err:
- EVP_PKEY_free(ret);
- return NULL;
+ if (!result) {
+ EVP_PKEY_free(pkey);
+ pkey = NULL;
+ }
+ EVP_PKEY_CTX_free(ctx);
+ return pkey;
+}
+
+EVP_PKEY *EVP_PKEY_new_raw_private_key_ex(OSSL_LIB_CTX *libctx,
+ const char *keytype,
+ const char *propq,
+ const unsigned char *priv, size_t len)
+{
+ return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, priv,
+ len, 1);
+}
+
+EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *e,
+ const unsigned char *priv,
+ size_t len)
+{
+ return new_raw_key_int(NULL, NULL, NULL, type, e, priv, len, 1);
+}
+
+EVP_PKEY *EVP_PKEY_new_raw_public_key_ex(OSSL_LIB_CTX *libctx,
+ const char *keytype, const char *propq,
+ const unsigned char *pub, size_t len)
+{
+ return new_raw_key_int(libctx, keytype, propq, EVP_PKEY_NONE, NULL, pub,
+ len, 0);
}
EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *e,
const unsigned char *pub,
size_t len)
{
- EVP_PKEY *ret = EVP_PKEY_new();
-
- if (ret == NULL
- || !pkey_set_type(ret, e, type, NULL, -1)) {
- /* EVPerr already called */
- goto err;
- }
+ return new_raw_key_int(NULL, NULL, NULL, type, e, pub, len, 0);
+}
- if (ret->ameth->set_pub_key == NULL) {
- EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- goto err;
- }
+struct raw_key_details_st
+{
+ unsigned char **key;
+ size_t *len;
+ int selection;
+};
- if (!ret->ameth->set_pub_key(ret, pub, len)) {
- EVPerr(EVP_F_EVP_PKEY_NEW_RAW_PUBLIC_KEY, EVP_R_KEY_SETUP_FAILED);
- goto err;
+static OSSL_CALLBACK get_raw_key_details;
+static int get_raw_key_details(const OSSL_PARAM params[], void *arg)
+{
+ const OSSL_PARAM *p = NULL;
+ struct raw_key_details_st *raw_key = arg;
+
+ if (raw_key->selection == OSSL_KEYMGMT_SELECT_PRIVATE_KEY) {
+ if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PRIV_KEY))
+ != NULL)
+ return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key,
+ SIZE_MAX, raw_key->len);
+ } else if (raw_key->selection == OSSL_KEYMGMT_SELECT_PUBLIC_KEY) {
+ if ((p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_PUB_KEY))
+ != NULL)
+ return OSSL_PARAM_get_octet_string(p, (void **)raw_key->key,
+ SIZE_MAX, raw_key->len);
}
- return ret;
-
- err:
- EVP_PKEY_free(ret);
- return NULL;
+ return 0;
}
int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, unsigned char *priv,
size_t *len)
{
- if (pkey->ameth->get_priv_key == NULL) {
- EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ if (pkey->keymgmt != NULL) {
+ struct raw_key_details_st raw_key;
+
+ raw_key.key = priv == NULL ? NULL : &priv;
+ raw_key.len = len;
+ raw_key.selection = OSSL_KEYMGMT_SELECT_PRIVATE_KEY;
+
+ return evp_keymgmt_util_export(pkey, OSSL_KEYMGMT_SELECT_PRIVATE_KEY,
+ get_raw_key_details, &raw_key);
+ }
+
+ if (pkey->ameth == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return 0;
+ }
+
+ if (pkey->ameth->get_priv_key == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return 0;
}
if (!pkey->ameth->get_priv_key(pkey, priv, len)) {
- EVPerr(EVP_F_EVP_PKEY_GET_RAW_PRIVATE_KEY, EVP_R_GET_RAW_KEY_FAILED);
+ ERR_raise(ERR_LIB_EVP, EVP_R_GET_RAW_KEY_FAILED);
return 0;
}
int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, unsigned char *pub,
size_t *len)
{
+ if (pkey->keymgmt != NULL) {
+ struct raw_key_details_st raw_key;
+
+ raw_key.key = pub == NULL ? NULL : &pub;
+ raw_key.len = len;
+ raw_key.selection = OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
+
+ return evp_keymgmt_util_export(pkey, OSSL_KEYMGMT_SELECT_PUBLIC_KEY,
+ get_raw_key_details, &raw_key);
+ }
+
+ if (pkey->ameth == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return 0;
+ }
+
if (pkey->ameth->get_pub_key == NULL) {
- EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return 0;
}
if (!pkey->ameth->get_pub_key(pkey, pub, len)) {
- EVPerr(EVP_F_EVP_PKEY_GET_RAW_PUBLIC_KEY, EVP_R_GET_RAW_KEY_FAILED);
+ ERR_raise(ERR_LIB_EVP, EVP_R_GET_RAW_KEY_FAILED);
return 0;
}
return 1;
}
-EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv,
- size_t len, const EVP_CIPHER *cipher)
+static EVP_PKEY *new_cmac_key_int(const unsigned char *priv, size_t len,
+ const char *cipher_name,
+ const EVP_CIPHER *cipher,
+ OSSL_LIB_CTX *libctx,
+ const char *propq, ENGINE *e)
{
# ifndef OPENSSL_NO_CMAC
# ifndef OPENSSL_NO_ENGINE
const char *engine_id = e != NULL ? ENGINE_get_id(e) : NULL;
# endif
- const char *cipher_name = EVP_CIPHER_name(cipher);
- const OSSL_PROVIDER *prov = EVP_CIPHER_provider(cipher);
- OPENSSL_CTX *libctx =
- prov == NULL ? NULL : ossl_provider_library_context(prov);
- EVP_PKEY *ret = EVP_PKEY_new();
- EVP_MAC *cmac = EVP_MAC_fetch(libctx, OSSL_MAC_NAME_CMAC, NULL);
- EVP_MAC_CTX *cmctx = cmac != NULL ? EVP_MAC_CTX_new(cmac) : NULL;
- OSSL_PARAM params[4];
- size_t paramsn = 0;
-
- if (ret == NULL
- || cmctx == NULL
- || !pkey_set_type(ret, e, EVP_PKEY_CMAC, NULL, -1)) {
- /* EVPerr already called */
+ OSSL_PARAM params[5], *p = params;
+ EVP_PKEY *pkey = NULL;
+ EVP_PKEY_CTX *ctx;
+
+ if (cipher != NULL)
+ cipher_name = EVP_CIPHER_name(cipher);
+
+ if (cipher_name == NULL) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
+ return NULL;
+ }
+
+ ctx = EVP_PKEY_CTX_new_from_name(libctx, "CMAC", propq);
+ if (ctx == NULL)
+ goto err;
+
+ if (!EVP_PKEY_key_fromdata_init(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
goto err;
}
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_PRIV_KEY,
+ (void *)priv, len);
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_CIPHER,
+ (char *)cipher_name, 0);
+ if (propq != NULL)
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_PROPERTIES,
+ (char *)propq, 0);
# ifndef OPENSSL_NO_ENGINE
if (engine_id != NULL)
- params[paramsn++] =
- OSSL_PARAM_construct_utf8_string("engine", (char *)engine_id, 0);
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_ENGINE,
+ (char *)engine_id, 0);
# endif
+ *p = OSSL_PARAM_construct_end();
- params[paramsn++] =
- OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_CIPHER,
- (char *)cipher_name, 0);
- params[paramsn++] =
- OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY,
- (char *)priv, len);
- params[paramsn] = OSSL_PARAM_construct_end();
-
- if (!EVP_MAC_CTX_set_params(cmctx, params)) {
- EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY, EVP_R_KEY_SETUP_FAILED);
+ if (!EVP_PKEY_fromdata(ctx, &pkey, params)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
goto err;
}
- ret->pkey.ptr = cmctx;
- return ret;
-
err:
- EVP_PKEY_free(ret);
- EVP_MAC_CTX_free(cmctx);
- EVP_MAC_free(cmac);
- return NULL;
+ EVP_PKEY_CTX_free(ctx);
+
+ return pkey;
# else
- EVPerr(EVP_F_EVP_PKEY_NEW_CMAC_KEY,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ ERR_raise(ERR_LIB_EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
return NULL;
# endif
}
+EVP_PKEY *EVP_PKEY_new_CMAC_key(ENGINE *e, const unsigned char *priv,
+ size_t len, const EVP_CIPHER *cipher)
+{
+ return new_cmac_key_int(priv, len, NULL, cipher, NULL, NULL, e);
+}
+
int EVP_PKEY_set_type(EVP_PKEY *pkey, int type)
{
- return pkey_set_type(pkey, NULL, type, NULL, -1);
+ return pkey_set_type(pkey, NULL, type, NULL, -1, NULL);
}
int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len)
{
- return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len);
+ return pkey_set_type(pkey, NULL, EVP_PKEY_NONE, str, len, NULL);
}
+#ifndef OPENSSL_NO_DEPRECATED_3_0
int EVP_PKEY_set_alias_type(EVP_PKEY *pkey, int type)
{
+ if (!evp_pkey_is_legacy(pkey)) {
+ const char *name = OBJ_nid2sn(type);
+
+ if (name != NULL && EVP_PKEY_is_a(pkey, name))
+ return 1;
+
+ ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_OPERATION);
+ return 0;
+ }
+
if (pkey->type == type) {
return 1; /* it already is that type */
}
* but not one that resolves to the base type.
*/
if (EVP_PKEY_type(type) != EVP_PKEY_base_id(pkey)) {
- EVPerr(EVP_F_EVP_PKEY_SET_ALIAS_TYPE, EVP_R_UNSUPPORTED_ALGORITHM);
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
return 0;
}
pkey->type = type;
return 1;
}
+#endif
# ifndef OPENSSL_NO_ENGINE
int EVP_PKEY_set1_engine(EVP_PKEY *pkey, ENGINE *e)
{
if (e != NULL) {
if (!ENGINE_init(e)) {
- EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, ERR_R_ENGINE_LIB);
+ ERR_raise(ERR_LIB_EVP, ERR_R_ENGINE_LIB);
return 0;
}
if (ENGINE_get_pkey_meth(e, pkey->type) == NULL) {
ENGINE_finish(e);
- EVPerr(EVP_F_EVP_PKEY_SET1_ENGINE, EVP_R_UNSUPPORTED_ALGORITHM);
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
return 0;
}
}
int alias = type;
#ifndef OPENSSL_NO_EC
- if (EVP_PKEY_type(type) == EVP_PKEY_EC) {
+ if ((key != NULL) && (EVP_PKEY_type(type) == EVP_PKEY_EC)) {
const EC_GROUP *group = EC_KEY_get0_group(key);
if (group != NULL && EC_GROUP_get_curve_name(group) == NID_sm2)
void *EVP_PKEY_get0(const EVP_PKEY *pkey)
{
+ if (pkey == NULL)
+ return NULL;
+ if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY);
+ return NULL;
+ }
return pkey->pkey.ptr;
}
{
ASN1_OCTET_STRING *os = NULL;
if (pkey->type != EVP_PKEY_HMAC) {
- EVPerr(EVP_F_EVP_PKEY_GET0_HMAC, EVP_R_EXPECTING_AN_HMAC_KEY);
+ ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_AN_HMAC_KEY);
return NULL;
}
os = EVP_PKEY_get0(pkey);
{
ASN1_OCTET_STRING *os = NULL;
if (pkey->type != EVP_PKEY_POLY1305) {
- EVPerr(EVP_F_EVP_PKEY_GET0_POLY1305, EVP_R_EXPECTING_A_POLY1305_KEY);
+ ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_POLY1305_KEY);
return NULL;
}
os = EVP_PKEY_get0(pkey);
ASN1_OCTET_STRING *os = NULL;
if (pkey->type != EVP_PKEY_SIPHASH) {
- EVPerr(EVP_F_EVP_PKEY_GET0_SIPHASH, EVP_R_EXPECTING_A_SIPHASH_KEY);
+ ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_SIPHASH_KEY);
return NULL;
}
os = EVP_PKEY_get0(pkey);
}
# endif
-# ifndef OPENSSL_NO_RSA
-int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
-{
- int ret = EVP_PKEY_assign_RSA(pkey, key);
- if (ret)
- RSA_up_ref(key);
- return ret;
-}
-
-RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey)
+# ifndef OPENSSL_NO_DSA
+DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey)
{
- if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) {
- EVPerr(EVP_F_EVP_PKEY_GET0_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
+ if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY);
return NULL;
}
- return pkey->pkey.rsa;
-}
-
-RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
-{
- RSA *ret = EVP_PKEY_get0_RSA(pkey);
- if (ret != NULL)
- RSA_up_ref(ret);
- return ret;
+ if (pkey->type != EVP_PKEY_DSA) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_DSA_KEY);
+ return NULL;
+ }
+ return pkey->pkey.dsa;
}
-# endif
-# ifndef OPENSSL_NO_DSA
int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
{
int ret = EVP_PKEY_assign_DSA(pkey, key);
DSA_up_ref(key);
return ret;
}
-
-DSA *EVP_PKEY_get0_DSA(const EVP_PKEY *pkey)
-{
- if (pkey->type != EVP_PKEY_DSA) {
- EVPerr(EVP_F_EVP_PKEY_GET0_DSA, EVP_R_EXPECTING_A_DSA_KEY);
- return NULL;
- }
- return pkey->pkey.dsa;
-}
-
DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
{
DSA *ret = EVP_PKEY_get0_DSA(pkey);
DSA_up_ref(ret);
return ret;
}
-# endif
+# endif /* OPENSSL_NO_DSA */
+#endif /* FIPS_MODULE */
+#ifndef FIPS_MODULE
# ifndef OPENSSL_NO_EC
-
-int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
+static ECX_KEY *evp_pkey_get0_ECX_KEY(const EVP_PKEY *pkey, int type)
{
- int ret = EVP_PKEY_assign_EC_KEY(pkey, key);
- if (ret)
- EC_KEY_up_ref(key);
- return ret;
-}
-
-EC_KEY *EVP_PKEY_get0_EC_KEY(const EVP_PKEY *pkey)
-{
- if (EVP_PKEY_base_id(pkey) != EVP_PKEY_EC) {
- EVPerr(EVP_F_EVP_PKEY_GET0_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
+ if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY);
+ return NULL;
+ }
+ if (EVP_PKEY_base_id(pkey) != type) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_ECX_KEY);
return NULL;
}
- return pkey->pkey.ec;
+ return pkey->pkey.ecx;
}
-EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
+static ECX_KEY *evp_pkey_get1_ECX_KEY(EVP_PKEY *pkey, int type)
{
- EC_KEY *ret = EVP_PKEY_get0_EC_KEY(pkey);
+ ECX_KEY *ret = evp_pkey_get0_ECX_KEY(pkey, type);
if (ret != NULL)
- EC_KEY_up_ref(ret);
+ ecx_key_up_ref(ret);
return ret;
}
+
+# define IMPLEMENT_ECX_VARIANT(NAME) \
+ ECX_KEY *evp_pkey_get1_##NAME(EVP_PKEY *pkey) \
+ { \
+ return evp_pkey_get1_ECX_KEY(pkey, EVP_PKEY_##NAME); \
+ }
+IMPLEMENT_ECX_VARIANT(X25519)
+IMPLEMENT_ECX_VARIANT(X448)
+IMPLEMENT_ECX_VARIANT(ED25519)
+IMPLEMENT_ECX_VARIANT(ED448)
+
# endif
-# ifndef OPENSSL_NO_DH
+# if !defined(OPENSSL_NO_DH) && !defined(OPENSSL_NO_DEPRECATED_3_0)
int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
{
DH *EVP_PKEY_get0_DH(const EVP_PKEY *pkey)
{
+ if (!evp_pkey_downgrade((EVP_PKEY *)pkey)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_INACCESSIBLE_KEY);
+ return NULL;
+ }
if (pkey->type != EVP_PKEY_DH && pkey->type != EVP_PKEY_DHX) {
- EVPerr(EVP_F_EVP_PKEY_GET0_DH, EVP_R_EXPECTING_A_DH_KEY);
+ ERR_raise(ERR_LIB_EVP, EVP_R_EXPECTING_A_DH_KEY);
return NULL;
}
return pkey->pkey.dh;
return EVP_PKEY_type(pkey->type);
}
+#ifndef FIPS_MODULE
+int evp_pkey_name2type(const char *name)
+{
+ /*
+ * These hard coded cases are pure hackery to get around the fact
+ * that names in crypto/objects/objects.txt are a mess. There is
+ * no "EC", and "RSA" leads to the NID for 2.5.8.1.1, an OID that's
+ * fallen out in favor of { pkcs-1 1 }, i.e. 1.2.840.113549.1.1.1,
+ * the NID of which is used for EVP_PKEY_RSA. Strangely enough,
+ * "DSA" is accurate... but still, better be safe and hard-code
+ * names that we know.
+ * On a similar topic, EVP_PKEY_type(EVP_PKEY_SM2) will result in
+ * EVP_PKEY_EC, because of aliasing.
+ * TODO Clean this away along with all other #legacy support.
+ */
+ int type = NID_undef;
+
+ if (strcasecmp(name, "RSA") == 0)
+ type = EVP_PKEY_RSA;
+ else if (strcasecmp(name, "RSA-PSS") == 0)
+ type = EVP_PKEY_RSA_PSS;
+ else if (strcasecmp(name, "EC") == 0)
+ type = EVP_PKEY_EC;
+ else if (strcasecmp(name, "ED25519") == 0)
+ type = EVP_PKEY_ED25519;
+ else if (strcasecmp(name, "ED448") == 0)
+ type = EVP_PKEY_ED448;
+ else if (strcasecmp(name, "X25519") == 0)
+ type = EVP_PKEY_X25519;
+ else if (strcasecmp(name, "X448") == 0)
+ type = EVP_PKEY_X448;
+ else if (strcasecmp(name, "SM2") == 0)
+ type = EVP_PKEY_SM2;
+ else if (strcasecmp(name, "DH") == 0)
+ type = EVP_PKEY_DH;
+ else if (strcasecmp(name, "X9.42 DH") == 0)
+ type = EVP_PKEY_DHX;
+ else if (strcasecmp(name, "DHX") == 0)
+ type = EVP_PKEY_DHX;
+ else if (strcasecmp(name, "DSA") == 0)
+ type = EVP_PKEY_DSA;
+
+ if (type == NID_undef)
+ type = EVP_PKEY_type(OBJ_sn2nid(name));
+ if (type == NID_undef)
+ type = EVP_PKEY_type(OBJ_ln2nid(name));
+
+ return type;
+}
+#endif
-static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent)
+int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name)
{
- BIO_set_indent(*out, saved_indent);
- if (pop_f_prefix) {
- BIO *next = BIO_pop(*out);
+#ifndef FIPS_MODULE
+ if (pkey->keymgmt == NULL) {
+ int type = evp_pkey_name2type(name);
- BIO_free(*out);
- *out = next;
+ return pkey->type == type;
}
- return 1;
+#endif
+ return EVP_KEYMGMT_is_a(pkey->keymgmt, name);
}
-static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent,
- long indent)
+void EVP_PKEY_typenames_do_all(const EVP_PKEY *pkey,
+ void (*fn)(const char *name, void *data),
+ void *data)
{
- *pop_f_prefix = 0;
- *saved_indent = 0;
- if (indent > 0) {
- long i = BIO_get_indent(*out);
+ if (!evp_pkey_is_typed(pkey))
+ return;
+
+ if (!evp_pkey_is_provided(pkey)) {
+ const char *name = OBJ_nid2sn(EVP_PKEY_id(pkey));
+
+ fn(name, data);
+ return;
+ }
+ EVP_KEYMGMT_names_do_all(pkey->keymgmt, fn, data);
+}
+
+int EVP_PKEY_can_sign(const EVP_PKEY *pkey)
+{
+ if (pkey->keymgmt == NULL) {
+ switch (EVP_PKEY_base_id(pkey)) {
+ case EVP_PKEY_RSA:
+ return 1;
+#ifndef OPENSSL_NO_DSA
+ case EVP_PKEY_DSA:
+ return 1;
+#endif
+#ifndef OPENSSL_NO_EC
+ case EVP_PKEY_ED25519:
+ case EVP_PKEY_ED448:
+ return 1;
+ case EVP_PKEY_EC: /* Including SM2 */
+ return EC_KEY_can_sign(pkey->pkey.ec);
+#endif
+ default:
+ break;
+ }
+ } else {
+ const OSSL_PROVIDER *prov = EVP_KEYMGMT_provider(pkey->keymgmt);
+ OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov);
+ const char *supported_sig =
+ pkey->keymgmt->query_operation_name != NULL
+ ? pkey->keymgmt->query_operation_name(OSSL_OP_SIGNATURE)
+ : evp_first_name(prov, pkey->keymgmt->name_id);
+ EVP_SIGNATURE *signature = NULL;
+
+ signature = EVP_SIGNATURE_fetch(libctx, supported_sig, NULL);
+ if (signature != NULL) {
+ EVP_SIGNATURE_free(signature);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static int print_reset_indent(BIO **out, int pop_f_prefix, long saved_indent)
+{
+ BIO_set_indent(*out, saved_indent);
+ if (pop_f_prefix) {
+ BIO *next = BIO_pop(*out);
+
+ BIO_free(*out);
+ *out = next;
+ }
+ return 1;
+}
+
+static int print_set_indent(BIO **out, int *pop_f_prefix, long *saved_indent,
+ long indent)
+{
+ *pop_f_prefix = 0;
+ *saved_indent = 0;
+ if (indent > 0) {
+ long i = BIO_get_indent(*out);
*saved_indent = (i < 0 ? 0 : i);
if (BIO_set_indent(*out, indent) <= 0) {
}
static int print_pkey(const EVP_PKEY *pkey, BIO *out, int indent,
- const char *propquery /* For provided serialization */,
+ int selection /* For provided encoding */,
+ const char *propquery /* For provided encoding */,
int (*legacy_print)(BIO *out, const EVP_PKEY *pkey,
int indent, ASN1_PCTX *pctx),
ASN1_PCTX *legacy_pctx /* For legacy print */)
{
int pop_f_prefix;
long saved_indent;
- OSSL_SERIALIZER_CTX *ctx = NULL;
+ OSSL_ENCODER_CTX *ctx = NULL;
int ret = -2; /* default to unsupported */
if (!print_set_indent(&out, &pop_f_prefix, &saved_indent, indent))
return 0;
- ctx = OSSL_SERIALIZER_CTX_new_by_EVP_PKEY(pkey, propquery);
- if (OSSL_SERIALIZER_CTX_get_serializer(ctx) != NULL)
- ret = OSSL_SERIALIZER_to_bio(ctx, out);
- OSSL_SERIALIZER_CTX_free(ctx);
+ ctx = OSSL_ENCODER_CTX_new_by_EVP_PKEY(pkey, selection, "TEXT", NULL,
+ propquery);
+ if (OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0)
+ ret = OSSL_ENCODER_to_bio(ctx, out);
+ OSSL_ENCODER_CTX_free(ctx);
if (ret != -2)
goto end;
int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
int indent, ASN1_PCTX *pctx)
{
- return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PUBKEY_TO_TEXT_PQ,
+ return print_pkey(pkey, out, indent, EVP_PKEY_PUBLIC_KEY, NULL,
(pkey->ameth != NULL ? pkey->ameth->pub_print : NULL),
pctx);
}
int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
int indent, ASN1_PCTX *pctx)
{
- return print_pkey(pkey, out, indent, OSSL_SERIALIZER_PrivateKey_TO_TEXT_PQ,
+ return print_pkey(pkey, out, indent, EVP_PKEY_KEYPAIR, NULL,
(pkey->ameth != NULL ? pkey->ameth->priv_print : NULL),
pctx);
}
int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
int indent, ASN1_PCTX *pctx)
{
- return print_pkey(pkey, out, indent, OSSL_SERIALIZER_Parameters_TO_TEXT_PQ,
+ return print_pkey(pkey, out, indent, EVP_PKEY_KEY_PARAMETERS, NULL,
(pkey->ameth != NULL ? pkey->ameth->param_print : NULL),
pctx);
}
+static void mdname2nid(const char *mdname, void *data)
+{
+ int *nid = (int *)data;
+
+ if (*nid != NID_undef)
+ return;
+
+ *nid = OBJ_sn2nid(mdname);
+ if (*nid == NID_undef)
+ *nid = OBJ_ln2nid(mdname);
+}
+
static int legacy_asn1_ctrl_to_param(EVP_PKEY *pkey, int op,
int arg1, void *arg2)
{
case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
{
char mdname[80] = "";
- int nid;
int rv = EVP_PKEY_get_default_digest_name(pkey, mdname,
sizeof(mdname));
- if (rv <= 0)
- return rv;
- nid = OBJ_sn2nid(mdname);
- if (nid == NID_undef)
- nid = OBJ_ln2nid(mdname);
- if (nid == NID_undef)
- return 0;
- *(int *)arg2 = nid;
- return 1;
+ if (rv > 0) {
+ int mdnum;
+ OSSL_LIB_CTX *libctx = ossl_provider_libctx(pkey->keymgmt->prov);
+ /* Make sure the MD is in the namemap if available */
+ EVP_MD *md = EVP_MD_fetch(libctx, mdname, NULL);
+ OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx);
+ int nid = NID_undef;
+
+ /*
+ * The only reason to fetch the MD was to make sure it is in the
+ * namemap. We can immediately free it.
+ */
+ EVP_MD_free(md);
+ mdnum = ossl_namemap_name2num(namemap, mdname);
+ if (mdnum == 0)
+ return 0;
+
+ /*
+ * We have the namemap number - now we need to find the
+ * associated nid
+ */
+ ossl_namemap_doall_names(namemap, mdnum, mdname2nid, &nid);
+ *(int *)arg2 = nid;
+ }
+ return rv;
}
default:
return -2;
int EVP_PKEY_get_default_digest_name(EVP_PKEY *pkey,
char *mdname, size_t mdname_sz)
{
- if (pkey->ameth == NULL) {
- OSSL_PARAM params[3];
- char mddefault[100] = "";
- char mdmandatory[100] = "";
-
- params[0] =
- OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_DEFAULT_DIGEST,
- mddefault, sizeof(mddefault));
- params[1] =
- OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_MANDATORY_DIGEST,
- mdmandatory,
- sizeof(mdmandatory));
- params[2] = OSSL_PARAM_construct_end();
- if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params))
- return 0;
- if (mdmandatory[0] != '\0') {
- OPENSSL_strlcpy(mdname, mdmandatory, mdname_sz);
- return 2;
- }
- OPENSSL_strlcpy(mdname, mddefault, mdname_sz);
- return 1;
- }
+ if (pkey->ameth == NULL)
+ return evp_keymgmt_util_get_deflt_digest_name(pkey->keymgmt,
+ pkey->keydata,
+ mdname, mdname_sz);
{
int nid = NID_undef;
}
}
+int EVP_PKEY_get_group_name(const EVP_PKEY *pkey, char *gname, size_t gname_sz,
+ size_t *gname_len)
+{
+ if (evp_pkey_is_legacy(pkey)) {
+ const char *name = NULL;
+
+ switch (EVP_PKEY_base_id(pkey)) {
+#ifndef OPENSSL_NO_EC
+ case EVP_PKEY_EC:
+ {
+ EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey);
+ int nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
+
+ if (nid != NID_undef)
+ name = ec_curve_nid2name(nid);
+ }
+ break;
+#endif
+#ifndef OPENSSL_NO_DH
+ case EVP_PKEY_DH:
+ {
+ DH *dh = EVP_PKEY_get0_DH(pkey);
+ int uid = DH_get_nid(dh);
+
+ if (uid != NID_undef) {
+ const DH_NAMED_GROUP *dh_group =
+ ossl_ffc_uid_to_dh_named_group(uid);
+
+ name = ossl_ffc_named_group_get_name(dh_group);
+ }
+ }
+ break;
+#endif
+ default:
+ break;
+ }
+
+ if (gname_len != NULL)
+ *gname_len = (name == NULL ? 0 : strlen(name));
+ if (name != NULL) {
+ if (gname != NULL)
+ OPENSSL_strlcpy(gname, name, gname_sz);
+ return 1;
+ }
+ } else if (evp_pkey_is_provided(pkey)) {
+ if (EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_GROUP_NAME,
+ gname, gname_sz, gname_len))
+ return 1;
+ } else {
+ ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY);
+ return 0;
+ }
+
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_KEY_TYPE);
+ return 0;
+}
+
int EVP_PKEY_supports_digest_nid(EVP_PKEY *pkey, int nid)
{
int rv, default_nid;
return rv;
}
-int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey,
- const unsigned char *pt, size_t ptlen)
+int EVP_PKEY_set1_encoded_public_key(EVP_PKEY *pkey, const unsigned char *pub,
+ size_t publen)
{
- if (ptlen > INT_MAX)
+ if (pkey->ameth == NULL) {
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ if (pkey->keymgmt == NULL || pkey->keydata == NULL)
+ return 0;
+
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY,
+ (unsigned char *)pub, publen);
+ return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+ }
+
+ if (publen > INT_MAX)
return 0;
- if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, ptlen,
- (void *)pt) <= 0)
+ /* Historically this function was EVP_PKEY_set1_tls_encodedpoint */
+ if (evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_SET1_TLS_ENCPT, publen,
+ (void *)pub) <= 0)
return 0;
return 1;
}
-size_t EVP_PKEY_get1_tls_encodedpoint(EVP_PKEY *pkey, unsigned char **ppt)
+size_t EVP_PKEY_get1_encoded_public_key(EVP_PKEY *pkey, unsigned char **ppub)
{
int rv;
- rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppt);
+
+ if (pkey->ameth == NULL) {
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+
+ if (pkey->keymgmt == NULL || pkey->keydata == NULL)
+ return 0;
+
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY,
+ NULL, 0);
+ if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params))
+ return 0;
+
+ *ppub = OPENSSL_malloc(params[0].return_size);
+ if (*ppub == NULL)
+ return 0;
+
+ params[0] =
+ OSSL_PARAM_construct_octet_string(OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY,
+ *ppub, params[0].return_size);
+ if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params))
+ return 0;
+
+ return params[0].return_size;
+ }
+
+
+ rv = evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_GET1_TLS_ENCPT, 0, ppub);
if (rv <= 0)
return 0;
return rv;
}
-#endif /* FIPS_MODE */
+#endif /* FIPS_MODULE */
+
+/*- All methods below can also be used in FIPS_MODULE */
+
+/*
+ * This reset function must be used very carefully, as it literally throws
+ * away everything in an EVP_PKEY without freeing them, and may cause leaks
+ * of memory, what have you.
+ * The only reason we have this is to have the same code for EVP_PKEY_new()
+ * and evp_pkey_downgrade().
+ */
+static int evp_pkey_reset_unlocked(EVP_PKEY *pk)
+{
+ if (pk == NULL)
+ return 0;
+
+ if (pk->lock != NULL) {
+ const size_t offset = (unsigned char *)&pk->lock - (unsigned char *)pk;
-/*- All methods below can also be used in FIPS_MODE */
+ memset(pk, 0, offset);
+ memset((unsigned char *)pk + offset + sizeof(pk->lock),
+ 0,
+ sizeof(*pk) - offset - sizeof(pk->lock));
+ }
+ /* EVP_PKEY_new uses zalloc so no need to call memset if pk->lock is NULL */
+
+ pk->type = EVP_PKEY_NONE;
+ pk->save_type = EVP_PKEY_NONE;
+ pk->references = 1;
+ pk->save_parameters = 1;
+
+ return 1;
+}
EVP_PKEY *EVP_PKEY_new(void)
{
EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL) {
- EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
return NULL;
}
- ret->type = EVP_PKEY_NONE;
- ret->save_type = EVP_PKEY_NONE;
- ret->references = 1;
- ret->save_parameters = 1;
+
+ if (!evp_pkey_reset_unlocked(ret))
+ goto err;
+
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
- EVPerr(EVP_F_EVP_PKEY_NEW, ERR_R_MALLOC_FAILURE);
- OPENSSL_free(ret);
- return NULL;
+ EVPerr(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ goto err;
}
+
+#ifndef FIPS_MODULE
+ if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+#endif
return ret;
+
+ err:
+ CRYPTO_THREAD_lock_free(ret->lock);
+ OPENSSL_free(ret);
+ return NULL;
+}
+
+/*
+ * Setup a public key management method.
+ *
+ * For legacy keys, either |type| or |str| is expected to have the type
+ * information. In this case, the setup consists of finding an ASN1 method
+ * and potentially an ENGINE, and setting those fields in |pkey|.
+ *
+ * For provider side keys, |keymgmt| is expected to be non-NULL. In this
+ * case, the setup consists of setting the |keymgmt| field in |pkey|.
+ *
+ * If pkey is NULL just return 1 or 0 if the key management method exists.
+ */
+
+static int pkey_set_type(EVP_PKEY *pkey, ENGINE *e, int type, const char *str,
+ int len, EVP_KEYMGMT *keymgmt)
+{
+#ifndef FIPS_MODULE
+ const EVP_PKEY_ASN1_METHOD *ameth = NULL;
+ ENGINE **eptr = (e == NULL) ? &e : NULL;
+#endif
+
+ /*
+ * The setups can't set both legacy and provider side methods.
+ * It is forbidden
+ */
+ if (!ossl_assert(type == EVP_PKEY_NONE || keymgmt == NULL)
+ || !ossl_assert(e == NULL || keymgmt == NULL)) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+
+ if (pkey != NULL) {
+ int free_it = 0;
+
+#ifndef FIPS_MODULE
+ free_it = free_it || pkey->pkey.ptr != NULL;
+#endif
+ free_it = free_it || pkey->keydata != NULL;
+ if (free_it)
+ evp_pkey_free_it(pkey);
+#ifndef FIPS_MODULE
+ /*
+ * If key type matches and a method exists then this lookup has
+ * succeeded once so just indicate success.
+ */
+ if (pkey->type != EVP_PKEY_NONE
+ && type == pkey->save_type
+ && pkey->ameth != NULL)
+ return 1;
+# ifndef OPENSSL_NO_ENGINE
+ /* If we have ENGINEs release them */
+ ENGINE_finish(pkey->engine);
+ pkey->engine = NULL;
+ ENGINE_finish(pkey->pmeth_engine);
+ pkey->pmeth_engine = NULL;
+# endif
+#endif
+ }
+#ifndef FIPS_MODULE
+ if (str != NULL)
+ ameth = EVP_PKEY_asn1_find_str(eptr, str, len);
+ else if (type != EVP_PKEY_NONE)
+ ameth = EVP_PKEY_asn1_find(eptr, type);
+# ifndef OPENSSL_NO_ENGINE
+ if (pkey == NULL && eptr != NULL)
+ ENGINE_finish(e);
+# endif
+#endif
+
+
+ {
+ int check = 1;
+
+#ifndef FIPS_MODULE
+ check = check && ameth == NULL;
+#endif
+ check = check && keymgmt == NULL;
+ if (check) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNSUPPORTED_ALGORITHM);
+ return 0;
+ }
+ }
+ if (pkey != NULL) {
+ if (keymgmt != NULL && !EVP_KEYMGMT_up_ref(keymgmt)) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+
+ pkey->keymgmt = keymgmt;
+
+ pkey->save_type = type;
+ pkey->type = type;
+
+#ifndef FIPS_MODULE
+ /*
+ * If the internal "origin" key is provider side, don't save |ameth|.
+ * The main reason is that |ameth| is one factor to detect that the
+ * internal "origin" key is a legacy one.
+ */
+ if (keymgmt == NULL)
+ pkey->ameth = ameth;
+ pkey->engine = e;
+
+ /*
+ * The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose
+ * for any key type that has a legacy implementation, regardless of
+ * if the internal key is a legacy or a provider side one. When
+ * there is no legacy implementation for the key, the type becomes
+ * EVP_PKEY_KEYMGMT, which indicates that one should be cautious
+ * with functions that expect legacy internal keys.
+ */
+ if (ameth != NULL)
+ pkey->type = ameth->pkey_id;
+ else
+ pkey->type = EVP_PKEY_KEYMGMT;
+#endif
+ }
+ return 1;
+}
+
+#ifndef FIPS_MODULE
+static void find_ameth(const char *name, void *data)
+{
+ const char **str = data;
+
+ /*
+ * The error messages from pkey_set_type() are uninteresting here,
+ * and misleading.
+ */
+ ERR_set_mark();
+
+ if (pkey_set_type(NULL, NULL, EVP_PKEY_NONE, name, strlen(name),
+ NULL)) {
+ if (str[0] == NULL)
+ str[0] = name;
+ else if (str[1] == NULL)
+ str[1] = name;
+ }
+
+ ERR_pop_to_mark();
+}
+#endif
+
+int EVP_PKEY_set_type_by_keymgmt(EVP_PKEY *pkey, EVP_KEYMGMT *keymgmt)
+{
+#ifndef FIPS_MODULE
+# define EVP_PKEY_TYPE_STR str[0]
+# define EVP_PKEY_TYPE_STRLEN (str[0] == NULL ? -1 : (int)strlen(str[0]))
+ /*
+ * Find at most two strings that have an associated EVP_PKEY_ASN1_METHOD
+ * Ideally, only one should be found. If two (or more) are found, the
+ * match is ambiguous. This should never happen, but...
+ */
+ const char *str[2] = { NULL, NULL };
+
+ EVP_KEYMGMT_names_do_all(keymgmt, find_ameth, &str);
+ if (str[1] != NULL) {
+ ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+#else
+# define EVP_PKEY_TYPE_STR NULL
+# define EVP_PKEY_TYPE_STRLEN -1
+#endif
+ return pkey_set_type(pkey, NULL, EVP_PKEY_NONE,
+ EVP_PKEY_TYPE_STR, EVP_PKEY_TYPE_STRLEN,
+ keymgmt);
+
+#undef EVP_PKEY_TYPE_STR
+#undef EVP_PKEY_TYPE_STRLEN
}
int EVP_PKEY_up_ref(EVP_PKEY *pkey)
return ((i > 1) ? 1 : 0);
}
-#ifndef FIPS_MODE
-static void evp_pkey_free_legacy(EVP_PKEY *x)
+#ifndef FIPS_MODULE
+void evp_pkey_free_legacy(EVP_PKEY *x)
{
if (x->ameth != NULL) {
if (x->ameth->pkey_free != NULL)
x->ameth->pkey_free(x);
x->pkey.ptr = NULL;
- x->ameth = NULL;
}
# ifndef OPENSSL_NO_ENGINE
ENGINE_finish(x->engine);
ENGINE_finish(x->pmeth_engine);
x->pmeth_engine = NULL;
# endif
- x->type = x->save_type = EVP_PKEY_NONE;
}
-#endif /* FIPS_MODE */
+#endif /* FIPS_MODULE */
static void evp_pkey_free_it(EVP_PKEY *x)
{
/* internal function; x is never NULL */
evp_keymgmt_util_clear_operation_cache(x);
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
evp_pkey_free_legacy(x);
#endif
x->keymgmt = NULL;
x->keydata = NULL;
}
+ x->type = EVP_PKEY_NONE;
}
void EVP_PKEY_free(EVP_PKEY *x)
return;
REF_ASSERT_ISNT(i < 0);
evp_pkey_free_it(x);
+#ifndef FIPS_MODULE
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data);
+#endif
CRYPTO_THREAD_lock_free(x->lock);
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
#endif
OPENSSL_free(x);
int EVP_PKEY_size(const EVP_PKEY *pkey)
{
+ int size = 0;
+
if (pkey != NULL) {
- if (pkey->ameth == NULL)
- return pkey->cache.size;
- else if (pkey->ameth->pkey_size != NULL)
- return pkey->ameth->pkey_size(pkey);
+ size = pkey->cache.size;
+#ifndef FIPS_MODULE
+ if (pkey->ameth != NULL && pkey->ameth->pkey_size != NULL)
+ size = pkey->ameth->pkey_size(pkey);
+#endif
}
- return 0;
+ return size < 0 ? 0 : size;
}
-void *evp_pkey_export_to_provider(EVP_PKEY *pk, OPENSSL_CTX *libctx,
+void *evp_pkey_export_to_provider(EVP_PKEY *pk, OSSL_LIB_CTX *libctx,
EVP_KEYMGMT **keymgmt,
const char *propquery)
{
EVP_KEYMGMT *allocated_keymgmt = NULL;
EVP_KEYMGMT *tmp_keymgmt = NULL;
void *keydata = NULL;
+ int check;
if (pk == NULL)
return NULL;
-#ifndef FIPS_MODE
+ /* No key data => nothing to export */
+ check = 1;
+#ifndef FIPS_MODULE
+ check = check && pk->pkey.ptr == NULL;
+#endif
+ check = check && pk->keydata == NULL;
+ if (check)
+ return NULL;
+
+#ifndef FIPS_MODULE
if (pk->pkey.ptr != NULL) {
/*
* If the legacy key doesn't have an dirty counter or export function,
*keymgmt = NULL;
}
- /* If no keymgmt was given or found, get a default keymgmt */
+ /*
+ * If no keymgmt was given or found, get a default keymgmt. We do so by
+ * letting EVP_PKEY_CTX_new_from_pkey() do it for us, then we steal it.
+ */
if (tmp_keymgmt == NULL) {
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery);
- if (ctx != NULL && ctx->keytype != NULL)
- tmp_keymgmt = allocated_keymgmt =
- EVP_KEYMGMT_fetch(ctx->libctx, ctx->keytype, propquery);
+ tmp_keymgmt = ctx->keymgmt;
+ ctx->keymgmt = NULL;
EVP_PKEY_CTX_free(ctx);
}
if (tmp_keymgmt == NULL)
goto end;
-#ifndef FIPS_MODE
+#ifndef FIPS_MODULE
if (pk->pkey.ptr != NULL) {
size_t i = 0;
if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL)
goto end;
- if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt)) {
+ if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt, libctx, propquery)) {
evp_keymgmt_freedata(tmp_keymgmt, keydata);
keydata = NULL;
goto end;
pk->dirty_cnt_copy = pk->ameth->dirty_cnt(pk);
goto end;
}
-#endif /* FIPS_MODE */
+#endif /* FIPS_MODULE */
keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt);
return keydata;
}
-#ifndef FIPS_MODE
-/*
- * This differs from exporting in that it releases the legacy key and assigns
- * the export keymgmt and keydata to the "origin" provider side key instead
- * of the operation cache.
- */
-void *evp_pkey_upgrade_to_provider(EVP_PKEY *pk, OPENSSL_CTX *libctx,
- EVP_KEYMGMT **keymgmt,
- const char *propquery)
+#ifndef FIPS_MODULE
+int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src)
{
- EVP_KEYMGMT *allocated_keymgmt = NULL;
- EVP_KEYMGMT *tmp_keymgmt = NULL;
- void *keydata = NULL;
+ if (!ossl_assert(dest != NULL))
+ return 0;
- if (pk == NULL)
- return NULL;
+ if (evp_pkey_is_assigned(src) && evp_pkey_is_provided(src)) {
+ EVP_KEYMGMT *keymgmt = src->keymgmt;
+ void *keydata = src->keydata;
+ int type = src->type;
+ const char *keytype = NULL;
+
+ keytype = evp_first_name(EVP_KEYMGMT_provider(keymgmt),
+ keymgmt->name_id);
+
+ /*
+ * If the type is EVP_PKEY_NONE, then we have a problem somewhere
+ * else in our code. If it's not one of the well known EVP_PKEY_xxx
+ * values, it should at least be EVP_PKEY_KEYMGMT at this point.
+ * TODO(3.0) remove this check when we're confident that the rest
+ * of the code treats this correctly.
+ */
+ if (!ossl_assert(type != EVP_PKEY_NONE)) {
+ ERR_raise_data(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR,
+ "keymgmt key type = %s but legacy type = EVP_PKEY_NONE",
+ keytype);
+ return 0;
+ }
+
+ /* Prefer the legacy key type name for error reporting */
+ if (type != EVP_PKEY_KEYMGMT)
+ keytype = OBJ_nid2sn(type);
+
+ /* Make sure we have a clean slate to copy into */
+ if (*dest == NULL)
+ *dest = EVP_PKEY_new();
+ else
+ evp_pkey_free_it(*dest);
+
+ if (EVP_PKEY_set_type(*dest, type)) {
+ /* If the key is typed but empty, we're done */
+ if (keydata == NULL)
+ return 1;
+
+ if ((*dest)->ameth->import_from == NULL) {
+ ERR_raise_data(ERR_LIB_EVP, EVP_R_NO_IMPORT_FUNCTION,
+ "key type = %s", keytype);
+ } else {
+ /*
+ * We perform the export in the same libctx as the keymgmt
+ * that we are using.
+ */
+ OSSL_LIB_CTX *libctx =
+ ossl_provider_libctx(keymgmt->prov);
+ EVP_PKEY_CTX *pctx =
+ EVP_PKEY_CTX_new_from_pkey(libctx, *dest, NULL);
+
+ if (pctx == NULL)
+ ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+
+ if (pctx != NULL
+ && evp_keymgmt_export(keymgmt, keydata,
+ OSSL_KEYMGMT_SELECT_ALL,
+ (*dest)->ameth->import_from,
+ pctx)) {
+ /* Synchronize the dirty count */
+ (*dest)->dirty_cnt_copy = (*dest)->ameth->dirty_cnt(*dest);
+
+ EVP_PKEY_CTX_free(pctx);
+ return 1;
+ }
+ EVP_PKEY_CTX_free(pctx);
+ }
+
+ ERR_raise_data(ERR_LIB_EVP, EVP_R_KEYMGMT_EXPORT_FAILURE,
+ "key type = %s", keytype);
+ }
+ }
+
+ return 0;
+}
+
+int evp_pkey_downgrade(EVP_PKEY *pk)
+{
+ EVP_PKEY tmp_copy; /* Stack allocated! */
+ int rv = 0;
+
+ if (!ossl_assert(pk != NULL))
+ return 0;
/*
- * If this key is already "upgraded", this function shouldn't have been
- * called.
+ * Throughout this whole function, we must ensure that we lock / unlock
+ * the exact same lock. Note that we do pass it around a bit.
*/
- if (!ossl_assert(pk->keymgmt == NULL))
- return NULL;
+ if (!CRYPTO_THREAD_write_lock(pk->lock))
+ return 0;
- if (keymgmt != NULL) {
- tmp_keymgmt = *keymgmt;
- *keymgmt = NULL;
+ /* If this isn't an assigned provider side key, we're done */
+ if (!evp_pkey_is_assigned(pk) || !evp_pkey_is_provided(pk)) {
+ rv = 1;
+ goto end;
}
- /* If the key isn't a legacy one, bail out, but with proper values */
- if (pk->pkey.ptr == NULL) {
- tmp_keymgmt = pk->keymgmt;
- keydata = pk->keydata;
- } else {
- /* If the legacy key doesn't have an export function, give up */
- if (pk->ameth->export_to == NULL)
- return NULL;
+ /*
+ * To be able to downgrade, we steal the contents of |pk|, then reset
+ * it, and finally try to make it a downgraded copy. If any of that
+ * fails, we restore the copied contents into |pk|.
+ */
+ tmp_copy = *pk; /* |tmp_copy| now owns THE lock */
- /* If no keymgmt was given, get a default keymgmt */
- if (tmp_keymgmt == NULL) {
- EVP_PKEY_CTX *ctx =
- EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery);
+ if (evp_pkey_reset_unlocked(pk)
+ && evp_pkey_copy_downgraded(&pk, &tmp_copy)) {
- if (ctx != NULL && ctx->keytype != NULL)
- tmp_keymgmt = allocated_keymgmt =
- EVP_KEYMGMT_fetch(ctx->libctx, ctx->keytype, propquery);
- EVP_PKEY_CTX_free(ctx);
- }
+ /* Restore the common attributes, then empty |tmp_copy| */
+ pk->references = tmp_copy.references;
+ pk->attributes = tmp_copy.attributes;
+ pk->save_parameters = tmp_copy.save_parameters;
+ pk->ex_data = tmp_copy.ex_data;
- /* If we still don't have a keymgmt, give up */
- if (tmp_keymgmt == NULL)
- goto end;
+ /* Ensure that stuff we've copied won't be freed */
+ tmp_copy.lock = NULL;
+ tmp_copy.attributes = NULL;
+ memset(&tmp_copy.ex_data, 0, sizeof(tmp_copy.ex_data));
- /* Make sure that the keymgmt key type matches the legacy NID */
- if (!ossl_assert(EVP_KEYMGMT_is_a(tmp_keymgmt, OBJ_nid2sn(pk->type))))
- goto end;
+ /*
+ * Save the provider side data in the operation cache, so they'll
+ * find it again. |pk| is new, so it's safe to assume slot zero
+ * is free.
+ * Note that evp_keymgmt_util_cache_keydata() increments keymgmt's
+ * reference count, so we need to decrement it, or there will be a
+ * leak.
+ */
+ evp_keymgmt_util_cache_keydata(pk, 0, tmp_copy.keymgmt,
+ tmp_copy.keydata);
+ EVP_KEYMGMT_free(tmp_copy.keymgmt);
- if ((keydata = evp_keymgmt_newdata(tmp_keymgmt)) == NULL)
- goto end;
+ /*
+ * Clear keymgmt and keydata from |tmp_copy|, or they'll get
+ * inadvertently freed.
+ */
+ tmp_copy.keymgmt = NULL;
+ tmp_copy.keydata = NULL;
- if (!pk->ameth->export_to(pk, keydata, tmp_keymgmt)
- || !EVP_KEYMGMT_up_ref(tmp_keymgmt)) {
- evp_keymgmt_freedata(tmp_keymgmt, keydata);
- keydata = NULL;
- goto end;
- }
+ evp_pkey_free_it(&tmp_copy);
+ rv = 1;
+ } else {
+ /* Restore the original key */
+ *pk = tmp_copy;
+ }
+
+ end:
+ if (!CRYPTO_THREAD_unlock(pk->lock))
+ return 0;
+ return rv;
+}
+#endif /* FIPS_MODULE */
+
+const OSSL_PARAM *EVP_PKEY_gettable_params(const EVP_PKEY *pkey)
+{
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL)
+ return 0;
+ return EVP_KEYMGMT_gettable_params(pkey->keymgmt);
+}
+int EVP_PKEY_get_bn_param(const EVP_PKEY *pkey, const char *key_name,
+ BIGNUM **bn)
+{
+ int ret = 0;
+ OSSL_PARAM params[2];
+ unsigned char buffer[2048];
+ unsigned char *buf = NULL;
+ size_t buf_sz = 0;
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL
+ || bn == NULL)
+ return 0;
+
+ memset(buffer, 0, sizeof(buffer));
+ params[0] = OSSL_PARAM_construct_BN(key_name, buffer, sizeof(buffer));
+ params[1] = OSSL_PARAM_construct_end();
+ if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)) {
+ if (!OSSL_PARAM_modified(params) || params[0].return_size == 0)
+ return 0;
+ buf_sz = params[0].return_size;
/*
- * Clear the operation cache, all the legacy data, as well as the
- * dirty counters
+ * If it failed because the buffer was too small then allocate the
+ * required buffer size and retry.
*/
- evp_pkey_free_legacy(pk);
- pk->dirty_cnt_copy = 0;
+ buf = OPENSSL_zalloc(buf_sz);
+ if (buf == NULL)
+ return 0;
+ params[0].data = buf;
+ params[0].data_size = buf_sz;
- evp_keymgmt_util_clear_operation_cache(pk);
- pk->keymgmt = tmp_keymgmt;
- pk->keydata = keydata;
- evp_keymgmt_util_cache_keyinfo(pk);
+ if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params))
+ goto err;
}
+ /* Fail if the param was not found */
+ if (!OSSL_PARAM_modified(params))
+ goto err;
+ ret = OSSL_PARAM_get_BN(params, bn);
+err:
+ OPENSSL_free(buf);
+ return ret;
+}
- end:
- /*
- * If nothing was upgraded, |tmp_keymgmt| might point at a freed
- * EVP_KEYMGMT, so we clear it to be safe. It shouldn't be useful for
- * the caller either way in that case.
- */
- if (keydata == NULL)
- tmp_keymgmt = NULL;
+int EVP_PKEY_get_octet_string_param(const EVP_PKEY *pkey, const char *key_name,
+ unsigned char *buf, size_t max_buf_sz,
+ size_t *out_sz)
+{
+ OSSL_PARAM params[2];
- if (keymgmt != NULL)
- *keymgmt = tmp_keymgmt;
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL)
+ return 0;
- EVP_KEYMGMT_free(allocated_keymgmt);
- return keydata;
+ params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, max_buf_sz);
+ params[1] = OSSL_PARAM_construct_end();
+ if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)
+ || !OSSL_PARAM_modified(params))
+ return 0;
+ if (out_sz != NULL)
+ *out_sz = params[0].return_size;
+ return 1;
+}
+
+int EVP_PKEY_get_utf8_string_param(const EVP_PKEY *pkey, const char *key_name,
+ char *str, size_t max_buf_sz,
+ size_t *out_sz)
+{
+ OSSL_PARAM params[2];
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL)
+ return 0;
+
+ params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, max_buf_sz);
+ params[1] = OSSL_PARAM_construct_end();
+ if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)
+ || !OSSL_PARAM_modified(params))
+ return 0;
+ if (out_sz != NULL)
+ *out_sz = params[0].return_size;
+ return 1;
+}
+
+int EVP_PKEY_get_int_param(const EVP_PKEY *pkey, const char *key_name,
+ int *out)
+{
+ OSSL_PARAM params[2];
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL)
+ return 0;
+
+ params[0] = OSSL_PARAM_construct_int(key_name, out);
+ params[1] = OSSL_PARAM_construct_end();
+ if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)
+ || !OSSL_PARAM_modified(params))
+ return 0;
+ return 1;
+}
+
+int EVP_PKEY_get_size_t_param(const EVP_PKEY *pkey, const char *key_name,
+ size_t *out)
+{
+ OSSL_PARAM params[2];
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL)
+ return 0;
+
+ params[0] = OSSL_PARAM_construct_size_t(key_name, out);
+ params[1] = OSSL_PARAM_construct_end();
+ if (!evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params)
+ || !OSSL_PARAM_modified(params))
+ return 0;
+ return 1;
+}
+
+int EVP_PKEY_set_int_param(EVP_PKEY *pkey, const char *key_name, int in)
+{
+ OSSL_PARAM params[2];
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL)
+ return 0;
+
+ params[0] = OSSL_PARAM_construct_int(key_name, &in);
+ params[1] = OSSL_PARAM_construct_end();
+ return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+int EVP_PKEY_set_size_t_param(EVP_PKEY *pkey, const char *key_name, size_t in)
+{
+ OSSL_PARAM params[2];
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL)
+ return 0;
+
+ params[0] = OSSL_PARAM_construct_size_t(key_name, &in);
+ params[1] = OSSL_PARAM_construct_end();
+ return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+int EVP_PKEY_set_bn_param(EVP_PKEY *pkey, const char *key_name, BIGNUM *bn)
+{
+ OSSL_PARAM params[2];
+ unsigned char buffer[2048];
+ int bsize = 0;
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL
+ || bn == NULL)
+ return 0;
+
+ bsize = BN_num_bytes(bn);
+ if (!ossl_assert(bsize <= (int)sizeof(buffer)))
+ return 0;
+
+ if (BN_bn2nativepad(bn, buffer, bsize) < 0)
+ return 0;
+ params[0] = OSSL_PARAM_construct_BN(key_name, buffer, bsize);
+ params[1] = OSSL_PARAM_construct_end();
+ return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+int EVP_PKEY_set_utf8_string_param(EVP_PKEY *pkey, const char *key_name,
+ char *str)
+{
+ OSSL_PARAM params[2];
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL)
+ return 0;
+
+ params[0] = OSSL_PARAM_construct_utf8_string(key_name, str, 0);
+ params[1] = OSSL_PARAM_construct_end();
+ return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+int EVP_PKEY_set_octet_string_param(EVP_PKEY *pkey, const char *key_name,
+ unsigned char *buf, size_t bsize)
+{
+ OSSL_PARAM params[2];
+
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL
+ || key_name == NULL)
+ return 0;
+
+ params[0] = OSSL_PARAM_construct_octet_string(key_name, buf, bsize);
+ params[1] = OSSL_PARAM_construct_end();
+ return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+const OSSL_PARAM *EVP_PKEY_settable_params(EVP_PKEY *pkey)
+{
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL)
+ return 0;
+ return EVP_KEYMGMT_settable_params(pkey->keymgmt);
+}
+
+int EVP_PKEY_set_params(EVP_PKEY *pkey, OSSL_PARAM params[])
+{
+ if (pkey == NULL
+ || pkey->keymgmt == NULL
+ || pkey->keydata == NULL)
+ return 0;
+ return evp_keymgmt_set_params(pkey->keymgmt, pkey->keydata, params);
+}
+
+#ifndef FIPS_MODULE
+int EVP_PKEY_get_ec_point_conv_form(const EVP_PKEY *pkey)
+{
+ char name[80];
+ size_t name_len;
+
+ if (pkey == NULL)
+ return 0;
+
+ if (pkey->keymgmt == NULL
+ || pkey->keydata == NULL) {
+#ifndef OPENSSL_NO_EC
+ /* Might work through the legacy route */
+ EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey);
+
+ if (ec == NULL)
+ return 0;
+
+ return EC_KEY_get_conv_form(ec);
+#else
+ return 0;
+#endif
+ }
+
+ if (!EVP_PKEY_get_utf8_string_param(pkey,
+ OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
+ name, sizeof(name), &name_len))
+ return 0;
+
+ if (strcmp(name, "uncompressed") == 0)
+ return POINT_CONVERSION_UNCOMPRESSED;
+
+ if (strcmp(name, "compressed") == 0)
+ return POINT_CONVERSION_COMPRESSED;
+
+ if (strcmp(name, "hybrid") == 0)
+ return POINT_CONVERSION_HYBRID;
+
+ return 0;
+}
+
+int EVP_PKEY_get_field_type(const EVP_PKEY *pkey)
+{
+ char fstr[80];
+ size_t fstrlen;
+
+ if (pkey == NULL)
+ return 0;
+
+ if (pkey->keymgmt == NULL
+ || pkey->keydata == NULL) {
+#ifndef OPENSSL_NO_EC
+ /* Might work through the legacy route */
+ EC_KEY *ec = EVP_PKEY_get0_EC_KEY(pkey);
+ const EC_GROUP *grp;
+
+ if (ec == NULL)
+ return 0;
+ grp = EC_KEY_get0_group(ec);
+
+ return EC_GROUP_get_field_type(grp);
+#else
+ return 0;
+#endif
+ }
+
+ if (!EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_EC_FIELD_TYPE,
+ fstr, sizeof(fstr), &fstrlen))
+ return 0;
+
+ if (strcmp(fstr, SN_X9_62_prime_field) == 0)
+ return NID_X9_62_prime_field;
+ else if (strcmp(fstr, SN_X9_62_characteristic_two_field))
+ return NID_X9_62_characteristic_two_field;
+
+ return 0;
}
-#endif /* FIPS_MODE */
+#endif
projects / openssl.git / blobdiff