ecx_set_priv_key: Try to obtain libctx from the pkey's keymgmt

We can try to do that although for legacy keys the keymgmt
will not be set. This function will disappear with legacy support
removed.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14404)

diff --git a/crypto/ec/ecx_meth.c b/crypto/ec/ecx_meth.c
index 54415d86dbc6b38abb4a73f1c1b827af58bf54dc..fac1ba7270f78ad52809a0ea7dfd7393f86cc96f 100644 (file)
--- a/crypto/ec/ecx_meth.c
+++ b/crypto/ec/ecx_meth.c
@@ -14,12 +14,13 @@
 #include "internal/deprecated.h"
 
 #include <stdio.h>
-#include "internal/cryptlib.h"
 #include <openssl/x509.h>
 #include <openssl/ec.h>
 #include <openssl/rand.h>
 #include <openssl/core_names.h>
-#include "openssl/param_build.h"
+#include <openssl/param_build.h>
+#include "internal/cryptlib.h"
+#include "internal/provider.h"
 #include "crypto/asn1.h"
 #include "crypto/evp.h"
 #include "crypto/ecx.h"
@@ -334,14 +335,24 @@ static int ecd_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
 static int ecx_set_priv_key(EVP_PKEY *pkey, const unsigned char *priv,
                             size_t len)
 {
+    OSSL_LIB_CTX *libctx = NULL;
+
+    if (pkey->keymgmt != NULL)
+        libctx = ossl_provider_libctx(EVP_KEYMGMT_provider(pkey->keymgmt));
+
     return ecx_key_op(pkey, pkey->ameth->pkey_id, NULL, priv, len,
-                       KEY_OP_PRIVATE, NULL, NULL);
+                       KEY_OP_PRIVATE, libctx, NULL);
 }
 
 static int ecx_set_pub_key(EVP_PKEY *pkey, const unsigned char *pub, size_t len)
 {
+    OSSL_LIB_CTX *libctx = NULL;
+
+    if (pkey->keymgmt != NULL)
+        libctx = ossl_provider_libctx(EVP_KEYMGMT_provider(pkey->keymgmt));
+
     return ecx_key_op(pkey, pkey->ameth->pkey_id, NULL, pub, len,
-                      KEY_OP_PUBLIC, NULL, NULL);
+                      KEY_OP_PUBLIC, libctx, NULL);
 }
 
 static int ecx_get_priv_key(const EVP_PKEY *pkey, unsigned char *priv,