/*
- * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2024 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 "internal/provider.h"
#include "evp_local.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);
if (pkey->ameth != NULL && pkey->ameth->pkey_bits != NULL)
size = pkey->ameth->pkey_bits(pkey);
}
- return size < 0 ? 0 : size;
+ if (size <= 0) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_BITS);
+ return 0;
+ }
+ return size;
}
int EVP_PKEY_get_security_bits(const EVP_PKEY *pkey)
if (pkey->ameth != NULL && pkey->ameth->pkey_security_bits != NULL)
size = pkey->ameth->pkey_security_bits(pkey);
}
- return size < 0 ? 0 : size;
+ if (size <= 0) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_SECURITY_BITS);
+ return 0;
+ }
+ return size;
}
int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
if (a == NULL || b == NULL)
return 0;
- if (a->keymgmt != NULL || b->keymgmt != NULL)
- return evp_pkey_cmp_any(a, b, (SELECT_PARAMETERS
- | OSSL_KEYMGMT_SELECT_PUBLIC_KEY));
+ if (a->keymgmt != NULL || b->keymgmt != NULL) {
+ int selection = SELECT_PARAMETERS;
+
+ if (evp_keymgmt_util_has((EVP_PKEY *)a, OSSL_KEYMGMT_SELECT_PUBLIC_KEY)
+ && evp_keymgmt_util_has((EVP_PKEY *)b, OSSL_KEYMGMT_SELECT_PUBLIC_KEY))
+ selection |= OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
+ else
+ selection |= OSSL_KEYMGMT_SELECT_KEYPAIR;
+ return evp_pkey_cmp_any(a, b, selection);
+ }
/* All legacy keys */
if (a->type != b->type)
pkey = EVP_PKEY_new();
if (pkey == NULL) {
- ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB);
goto err;
}
if (!pkey_set_type(pkey, e, nidtype, strtype, -1, NULL)) {
- /* EVPerr already called */
+ /* ERR_raise(ERR_LIB_EVP, ...) already called */
goto err;
}
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);
+ raw_key->key == NULL ? 0 : *raw_key->len,
+ 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);
+ raw_key->key == NULL ? 0 : *raw_key->len,
+ raw_key->len);
}
return 0;
if (ctx == NULL)
goto err;
- if (!EVP_PKEY_fromdata_init(ctx)) {
+ if (EVP_PKEY_fromdata_init(ctx) <= 0) {
ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
goto err;
}
# endif
*p = OSSL_PARAM_construct_end();
- if (!EVP_PKEY_fromdata(ctx, &pkey, EVP_PKEY_KEYPAIR, params)) {
+ if (EVP_PKEY_fromdata(ctx, &pkey, EVP_PKEY_KEYPAIR, params) <= 0) {
ERR_raise(ERR_LIB_EVP, EVP_R_KEY_SETUP_FAILED);
goto err;
}
{
switch (pkey->type) {
case EVP_PKEY_RSA:
+ case EVP_PKEY_RSA_PSS:
pkey->foreign = pkey->pkey.rsa != NULL
&& ossl_rsa_is_foreign(pkey->pkey.rsa);
break;
# ifndef OPENSSL_NO_EC
case EVP_PKEY_SM2:
+ break;
case EVP_PKEY_EC:
pkey->foreign = pkey->pkey.ec != NULL
&& ossl_ec_key_is_foreign(pkey->pkey.ec);
}
# endif /* OPENSSL_NO_DSA */
-# ifndef OPENSSL_NO_EC
+# ifndef OPENSSL_NO_ECX
static const ECX_KEY *evp_pkey_get0_ECX_KEY(const EVP_PKEY *pkey, int type)
{
if (EVP_PKEY_get_base_id(pkey) != type) {
IMPLEMENT_ECX_VARIANT(ED25519)
IMPLEMENT_ECX_VARIANT(ED448)
-# endif
+# endif /* OPENSSL_NO_ECX */
# if !defined(OPENSSL_NO_DH) && !defined(OPENSSL_NO_DEPRECATED_3_0)
size_t i;
for (i = 0; i < OSSL_NELEM(standard_name2type); i++) {
- if (strcasecmp(name, standard_name2type[i].ptr) == 0)
+ if (OPENSSL_strcasecmp(name, standard_name2type[i].ptr) == 0)
return (int)standard_name2type[i].id;
}
int EVP_PKEY_is_a(const EVP_PKEY *pkey, const char *name)
{
- if (pkey->keymgmt == NULL) {
- int type = evp_pkey_name2type(name);
-
- return pkey->type == type;
- }
+ if (pkey == NULL)
+ return 0;
+ if (pkey->keymgmt == NULL)
+ return pkey->type == evp_pkey_name2type(name);
return EVP_KEYMGMT_is_a(pkey->keymgmt, name);
}
if (pkey->keymgmt == NULL) {
switch (EVP_PKEY_get_base_id(pkey)) {
case EVP_PKEY_RSA:
+ case EVP_PKEY_RSA_PSS:
return 1;
# ifndef OPENSSL_NO_DSA
case EVP_PKEY_DSA:
*saved_indent = (i < 0 ? 0 : i);
if (BIO_set_indent(*out, indent) <= 0) {
- if ((*out = BIO_push(BIO_new(BIO_f_prefix()), *out)) == NULL)
+ BIO *prefbio = BIO_new(BIO_f_prefix());
+
+ if (prefbio == NULL)
return 0;
+ *out = BIO_push(prefbio, *out);
*pop_f_prefix = 1;
}
if (BIO_set_indent(*out, indent) <= 0) {
int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
int indent, ASN1_PCTX *pctx)
{
- return print_pkey(pkey, out, indent, EVP_PKEY_KEYPAIR, NULL,
+ return print_pkey(pkey, out, indent, EVP_PKEY_PRIVATE_KEY, NULL,
(pkey->ameth != NULL ? pkey->ameth->priv_print : NULL),
pctx);
}
int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid)
{
+ if (pkey == NULL)
+ return 0;
return evp_pkey_asn1_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, 0, pnid);
}
int EVP_PKEY_set1_encoded_public_key(EVP_PKEY *pkey, const unsigned char *pub,
size_t publen)
{
- if (pkey != NULL && evp_pkey_is_provided(pkey))
+ if (pkey == NULL)
+ return 0;
+ if (evp_pkey_is_provided(pkey))
return
EVP_PKEY_set_octet_string_param(pkey,
OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY,
{
int rv;
- if (pkey != NULL && evp_pkey_is_provided(pkey)) {
+ if (pkey == NULL)
+ return 0;
+ if (evp_pkey_is_provided(pkey)) {
size_t return_size = OSSL_PARAM_UNMODIFIED;
+ unsigned char *buf;
/*
* We know that this is going to fail, but it will give us a size
if (return_size == OSSL_PARAM_UNMODIFIED)
return 0;
- *ppub = OPENSSL_malloc(return_size);
- if (*ppub == NULL)
+ *ppub = NULL;
+ buf = OPENSSL_malloc(return_size);
+ if (buf == NULL)
return 0;
if (!EVP_PKEY_get_octet_string_param(pkey,
OSSL_PKEY_PARAM_ENCODED_PUBLIC_KEY,
- *ppub, return_size, NULL))
+ buf, return_size, NULL)) {
+ OPENSSL_free(buf);
return 0;
+ }
+ *ppub = buf;
return return_size;
}
{
EVP_PKEY *ret = OPENSSL_zalloc(sizeof(*ret));
- if (ret == NULL) {
- ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ if (ret == NULL)
return NULL;
- }
ret->type = EVP_PKEY_NONE;
ret->save_type = EVP_PKEY_NONE;
- ret->references = 1;
+
+ if (!CRYPTO_NEW_REF(&ret->references, 1))
+ goto err;
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
- EVPerr(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
goto err;
}
#ifndef FIPS_MODULE
ret->save_parameters = 1;
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, ret, &ret->ex_data)) {
- ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
goto err;
}
#endif
return ret;
err:
+ CRYPTO_FREE_REF(&ret->references);
CRYPTO_THREAD_lock_free(ret->lock);
OPENSSL_free(ret);
return NULL;
*/
if (keymgmt == NULL)
pkey->ameth = ameth;
- pkey->engine = e;
/*
* The EVP_PKEY_ASN1_METHOD |pkey_id| retains its legacy key purpose
} else {
pkey->type = EVP_PKEY_KEYMGMT;
}
+# ifndef OPENSSL_NO_ENGINE
+ if (eptr == NULL && e != NULL && !ENGINE_init(e)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_INITIALIZATION_ERROR);
+ return 0;
+ }
+# endif
+ pkey->engine = e;
#endif
}
return 1;
{
int i;
- if (CRYPTO_UP_REF(&pkey->references, &i, pkey->lock) <= 0)
+ if (CRYPTO_UP_REF(&pkey->references, &i) <= 0)
return 0;
REF_PRINT_COUNT("EVP_PKEY", pkey);
static void evp_pkey_free_it(EVP_PKEY *x)
{
/* internal function; x is never NULL */
- evp_keymgmt_util_clear_operation_cache(x, 1);
+ evp_keymgmt_util_clear_operation_cache(x);
#ifndef FIPS_MODULE
evp_pkey_free_legacy(x);
#endif
if (x == NULL)
return;
- CRYPTO_DOWN_REF(&x->references, &i, x->lock);
+ CRYPTO_DOWN_REF(&x->references, &i);
REF_PRINT_COUNT("EVP_PKEY", x);
if (i > 0)
return;
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_EVP_PKEY, x, &x->ex_data);
#endif
CRYPTO_THREAD_lock_free(x->lock);
+ CRYPTO_FREE_REF(&x->references);
#ifndef FIPS_MODULE
sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
#endif
size = pkey->ameth->pkey_size(pkey);
#endif
}
- return size < 0 ? 0 : size;
+ if (size <= 0) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_MAX_SIZE);
+ return 0;
+ }
+ return size;
}
const char *EVP_PKEY_get0_description(const EVP_PKEY *pkey)
{
EVP_KEYMGMT *allocated_keymgmt = NULL;
EVP_KEYMGMT *tmp_keymgmt = NULL;
+ int selection = OSSL_KEYMGMT_SELECT_ALL;
void *keydata = NULL;
int check;
if (tmp_keymgmt == NULL) {
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(libctx, pk, propquery);
- tmp_keymgmt = ctx->keymgmt;
+ if (ctx == NULL)
+ goto end;
+ allocated_keymgmt = tmp_keymgmt = ctx->keymgmt;
ctx->keymgmt = NULL;
EVP_PKEY_CTX_free(ctx);
}
if (pk->ameth->dirty_cnt(pk) == pk->dirty_cnt_copy) {
if (!CRYPTO_THREAD_read_lock(pk->lock))
goto end;
- op = evp_keymgmt_util_find_operation_cache(pk, tmp_keymgmt);
+ op = evp_keymgmt_util_find_operation_cache(pk, tmp_keymgmt,
+ selection);
/*
* If |tmp_keymgmt| is present in the operation cache, it means
* that export doesn't need to be redone. In that case, we take
* token copies of the cached pointers, to have token success
- * values to return.
+ * values to return. It is possible (e.g. in a no-cached-fetch
+ * build), for op->keymgmt to be a different pointer to tmp_keymgmt
+ * even though the name/provider must be the same. In other words
+ * the keymgmt instance may be different but still equivalent, i.e.
+ * same algorithm/provider instance - but we make the simplifying
+ * assumption that the keydata can be used with either keymgmt
+ * instance. Not doing so introduces significant complexity and
+ * probably requires refactoring - since we would have to ripple
+ * the change in keymgmt instance up the call chain.
*/
if (op != NULL && op->keymgmt != NULL) {
keydata = op->keydata;
if (!CRYPTO_THREAD_write_lock(pk->lock))
goto end;
if (pk->ameth->dirty_cnt(pk) != pk->dirty_cnt_copy
- && !evp_keymgmt_util_clear_operation_cache(pk, 0)) {
+ && !evp_keymgmt_util_clear_operation_cache(pk)) {
CRYPTO_THREAD_unlock(pk->lock);
evp_keymgmt_freedata(tmp_keymgmt, keydata);
keydata = NULL;
EVP_KEYMGMT_free(tmp_keymgmt); /* refcnt-- */
/* Check to make sure some other thread didn't get there first */
- op = evp_keymgmt_util_find_operation_cache(pk, tmp_keymgmt);
+ op = evp_keymgmt_util_find_operation_cache(pk, tmp_keymgmt, selection);
if (op != NULL && op->keymgmt != NULL) {
void *tmp_keydata = op->keydata;
}
/* Add the new export to the operation cache */
- if (!evp_keymgmt_util_cache_keydata(pk, tmp_keymgmt, keydata)) {
+ if (!evp_keymgmt_util_cache_keydata(pk, tmp_keymgmt, keydata,
+ selection)) {
CRYPTO_THREAD_unlock(pk->lock);
evp_keymgmt_freedata(tmp_keymgmt, keydata);
keydata = NULL;
}
#endif /* FIPS_MODULE */
- keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt);
+ keydata = evp_keymgmt_util_export_to_provider(pk, tmp_keymgmt, selection);
end:
/*
if (keydata == NULL)
tmp_keymgmt = NULL;
- if (keymgmt != NULL)
+ if (keymgmt != NULL && tmp_keymgmt != NULL) {
*keymgmt = tmp_keymgmt;
+ allocated_keymgmt = NULL;
+ }
EVP_KEYMGMT_free(allocated_keymgmt);
return keydata;
#ifndef FIPS_MODULE
int evp_pkey_copy_downgraded(EVP_PKEY **dest, const EVP_PKEY *src)
{
+ EVP_PKEY *allocpkey = NULL;
+
if (!ossl_assert(dest != NULL))
return 0;
/* Make sure we have a clean slate to copy into */
if (*dest == NULL) {
- *dest = EVP_PKEY_new();
+ allocpkey = *dest = EVP_PKEY_new();
if (*dest == NULL) {
- ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB);
return 0;
}
} else {
EVP_PKEY_CTX_new_from_pkey(libctx, *dest, NULL);
if (pctx == NULL)
- ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB);
if (pctx != NULL
&& evp_keymgmt_export(keymgmt, keydata,
}
}
+ if (allocpkey != NULL) {
+ EVP_PKEY_free(allocpkey);
+ *dest = NULL;
+ }
return 0;
}
return ret;
if (!evp_pkey_copy_downgraded(&tmp_copy, pk))
- return NULL;
+ goto err;
if (!CRYPTO_THREAD_write_lock(pk->lock))
goto err;
goto err;
ret = OSSL_PARAM_get_BN(params, bn);
err:
- OPENSSL_free(buf);
+ if (buf != NULL) {
+ if (OSSL_PARAM_modified(params))
+ OPENSSL_clear_free(buf, buf_sz);
+ else
+ OPENSSL_free(buf);
+ } else if (OSSL_PARAM_modified(params)) {
+ OPENSSL_cleanse(buffer, params[0].data_size);
+ }
return ret;
}
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)
+ size_t *out_len)
{
OSSL_PARAM params[2];
int ret1 = 0, ret2 = 0;
params[1] = OSSL_PARAM_construct_end();
if ((ret1 = EVP_PKEY_get_params(pkey, params)))
ret2 = OSSL_PARAM_modified(params);
- if (ret2 && out_sz != NULL)
- *out_sz = params[0].return_size;
+ if (ret2 && out_len != NULL)
+ *out_len = params[0].return_size;
return ret1 && ret2;
}
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)
+ size_t *out_len)
{
OSSL_PARAM params[2];
int ret1 = 0, ret2 = 0;
params[1] = OSSL_PARAM_construct_end();
if ((ret1 = EVP_PKEY_get_params(pkey, params)))
ret2 = OSSL_PARAM_modified(params);
- if (ret2 && out_sz != NULL)
- *out_sz = params[0].return_size;
+ if (ret2 && out_len != NULL)
+ *out_len = params[0].return_size;
+
+ if (ret2 && params[0].return_size == max_buf_sz)
+ /* There was no space for a NUL byte */
+ return 0;
+ /* Add a terminating NUL byte for good measure */
+ if (ret2 && str != NULL)
+ str[params[0].return_size] = '\0';
+
return ret1 && ret2;
}
{
if (pkey != NULL) {
if (evp_pkey_is_provided(pkey))
- return evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params);
+ return evp_keymgmt_get_params(pkey->keymgmt, pkey->keydata, params) > 0;
#ifndef FIPS_MODULE
else if (evp_pkey_is_legacy(pkey))
- return evp_pkey_get_params_to_ctrl(pkey, params);
+ return evp_pkey_get_params_to_ctrl(pkey, params) > 0;
#endif
}
ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_KEY);
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