new file mode 100644
@@ -0,0 +1,300 @@
+From a81cb0932dce109af44d7245d47489fe54ae390f Mon Sep 17 00:00:00 2001
+From: Eddie Kovsky <ewk@edkovsky.org>
+Date: Mon, 23 Feb 2026 09:43:22 -0700
+Subject: [PATCH] Add support for OpenSSL Provider API
+
+The Engine API has been deprecated since the release of OpenSSL 3.0. End
+users have been advised to migrate to the new Provider interface.
+Several distributions have already removed support for engines, which is
+preventing U-Boot from being compiled in those environments.
+
+Add support for the Provider API while continuing to support the existing
+Engine API on distros shipping older releases of OpenSSL.
+
+This is based on similar work contributed by Jan Stancek updating Linux
+to use the Provider interface.
+
+ commit 558bdc45dfb2669e1741384a0c80be9c82fa052c
+ Author: Jan Stancek <jstancek@redhat.com>
+ Date: Fri Sep 20 19:52:48 2024 +0300
+
+ sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3
+
+The changes have been tested with the FIT signature verification vboot
+tests on Fedora 42 and Debian 13. All 30 tests pass with both the legacy
+Engine library installed and with the Provider API.
+
+Signed-off-by: Eddie Kovsky <ewk@edkovsky.org>
+
+Upstream-Status: Backport [https://github.com/u-boot/u-boot/pull/918]
+Signed-off-by: Jaipaul Cheernam <jaipaul.cheernam@est.tech>
+---
+ lib/aes/aes-encrypt.c | 4 +-
+ lib/rsa/rsa-sign.c | 102 +++++++++++++++++++++++++++++++++++++++---
+ 2 files changed, 100 insertions(+), 6 deletions(-)
+
+diff --git a/lib/aes/aes-encrypt.c b/lib/aes/aes-encrypt.c
+index 90e1407b4f09..4fc4ce232478 100644
+--- a/lib/aes/aes-encrypt.c
++++ b/lib/aes/aes-encrypt.c
+@@ -16,7 +16,9 @@
+ #include <openssl/err.h>
+ #include <openssl/ssl.h>
+ #include <openssl/evp.h>
+-#include <openssl/engine.h>
++#if !defined(OPENSSL_NO_ENGINE) && !defined(OPENSSL_NO_DEPRECATED_3_0)
++# include <openssl/engine.h>
++#endif
+ #include <uboot_aes.h>
+
+ #if OPENSSL_VERSION_NUMBER >= 0x10000000L
+diff --git a/lib/rsa/rsa-sign.c b/lib/rsa/rsa-sign.c
+index 0e38c9e802fd..f456f3c58e65 100644
+--- a/lib/rsa/rsa-sign.c
++++ b/lib/rsa/rsa-sign.c
+@@ -19,7 +19,47 @@
+ #include <openssl/err.h>
+ #include <openssl/ssl.h>
+ #include <openssl/evp.h>
+-#include <openssl/engine.h>
++#if OPENSSL_VERSION_MAJOR >= 3
++# define USE_PKCS11_PROVIDER
++# include <err.h>
++# include <openssl/provider.h>
++# include <openssl/store.h>
++#else
++# if !defined(OPENSSL_NO_ENGINE) && !defined(OPENSSL_NO_DEPRECATED_3_0)
++# define USE_PKCS11_ENGINE
++# include <openssl/engine.h>
++# endif
++#endif
++
++#ifdef USE_PKCS11_PROVIDER
++#define ERR(cond, fmt, ...) \
++ do { \
++ bool __cond = (cond); \
++ drain_openssl_errors(__LINE__, 0); \
++ if (__cond) { \
++ errx(1, fmt, ## __VA_ARGS__); \
++ } \
++ } while (0)
++
++static void drain_openssl_errors(int l, int silent)
++{
++ const char *file;
++ char buf[120];
++ int e, line;
++
++ if (ERR_peek_error() == 0)
++ return;
++ if (!silent)
++ fprintf(stderr, "At main.c:%d:\n", l);
++
++ while ((e = ERR_peek_error_line(&file, &line))) {
++ ERR_error_string(e, buf);
++ if (!silent)
++ fprintf(stderr, "- SSL %s: %s:%d\n", buf, file, line);
++ ERR_get_error();
++ }
++}
++#endif
+
+ static int rsa_err(const char *msg)
+ {
+@@ -94,10 +134,11 @@ static int rsa_pem_get_pub_key(const char *keydir, const char *name, EVP_PKEY **
+ *
+ * @keydir: Key prefix
+ * @name Name of key
+- * @engine Engine to use
++ * @engine Engine to use or NULL when using pkcs11 provider
+ * @evpp Returns EVP_PKEY object, or NULL on failure
+ * Return: 0 if ok, -ve on error (in which case *evpp will be set to NULL)
+ */
++#ifdef USE_PKCS11_ENGINE
+ static int rsa_engine_get_pub_key(const char *keydir, const char *name,
+ ENGINE *engine, EVP_PKEY **evpp)
+ {
+@@ -157,21 +198,24 @@ static int rsa_engine_get_pub_key(const char *keydir, const char *name,
+
+ return 0;
+ }
++#endif
+
+ /**
+ * rsa_get_pub_key() - read a public key
+ *
+ * @keydir: Directory containing the key (PEM file) or key prefix (engine)
+ * @name Name of key file (will have a .crt extension)
+- * @engine Engine to use
++ * @engine Engine to use or NULL when using pkcs11 provider
+ * @evpp Returns EVP_PKEY object, or NULL on failure
+ * Return: 0 if ok, -ve on error (in which case *evpp will be set to NULL)
+ */
+ static int rsa_get_pub_key(const char *keydir, const char *name,
+ ENGINE *engine, EVP_PKEY **evpp)
+ {
++#ifdef USE_PKCS11_ENGINE
+ if (engine)
+ return rsa_engine_get_pub_key(keydir, name, engine, evpp);
++#endif
+ return rsa_pem_get_pub_key(keydir, name, evpp);
+ }
+
+@@ -207,13 +251,44 @@ static int rsa_pem_get_priv_key(const char *keydir, const char *name,
+ return -ENOENT;
+ }
+
++#ifdef USE_PKCS11_PROVIDER
++ EVP_PKEY *private_key = NULL;
++ OSSL_STORE_CTX *store;
++
++ if (!OSSL_PROVIDER_try_load(NULL, "pkcs11", true))
++ ERR(1, "OSSL_PROVIDER_try_load(pkcs11)");
++ if (!OSSL_PROVIDER_try_load(NULL, "default", true))
++ ERR(1, "OSSL_PROVIDER_try_load(default)");
++
++ store = OSSL_STORE_open(path, NULL, NULL, NULL, NULL);
++ ERR(!store, "OSSL_STORE_open");
++
++ while (!OSSL_STORE_eof(store)) {
++ OSSL_STORE_INFO *info = OSSL_STORE_load(store);
++
++ if (!info) {
++ drain_openssl_errors(__LINE__, 0);
++ continue;
++ }
++ if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY) {
++ private_key = OSSL_STORE_INFO_get1_PKEY(info);
++ ERR(!private_key, "OSSL_STORE_INFO_get1_PKEY");
++ }
++ OSSL_STORE_INFO_free(info);
++ if (private_key)
++ break;
++ }
++ OSSL_STORE_close(store);
++
++ *evpp = private_key;
++#else
+ if (!PEM_read_PrivateKey(f, evpp, NULL, path)) {
+ rsa_err("Failure reading private key");
+ fclose(f);
+ return -EPROTO;
+ }
+ fclose(f);
+-
++#endif
+ return 0;
+ }
+
+@@ -226,6 +301,7 @@ static int rsa_pem_get_priv_key(const char *keydir, const char *name,
+ * @evpp Returns EVP_PKEY object, or NULL on failure
+ * Return: 0 if ok, -ve on error (in which case *evpp will be set to NULL)
+ */
++#ifdef USE_PKCS11_ENGINE
+ static int rsa_engine_get_priv_key(const char *keydir, const char *name,
+ const char *keyfile,
+ ENGINE *engine, EVP_PKEY **evpp)
+@@ -293,22 +369,25 @@ static int rsa_engine_get_priv_key(const char *keydir, const char *name,
+
+ return 0;
+ }
++#endif
+
+ /**
+ * rsa_get_priv_key() - read a private key
+ *
+ * @keydir: Directory containing the key (PEM file) or key prefix (engine)
+ * @name Name of key
+- * @engine Engine to use for signing
++ * @engine Engine to use or NULL when using pkcs11 provider
+ * @evpp Returns EVP_PKEY object, or NULL on failure
+ * Return: 0 if ok, -ve on error (in which case *evpp will be set to NULL)
+ */
+ static int rsa_get_priv_key(const char *keydir, const char *name,
+ const char *keyfile, ENGINE *engine, EVP_PKEY **evpp)
+ {
++#ifdef USE_PKCS11_ENGINE
+ if (engine)
+ return rsa_engine_get_priv_key(keydir, name, keyfile, engine,
+ evpp);
++#endif
+ return rsa_pem_get_priv_key(keydir, name, keyfile, evpp);
+ }
+
+@@ -325,6 +404,7 @@ static int rsa_init(void)
+ return 0;
+ }
+
++#ifdef USE_PKCS11_ENGINE
+ static int rsa_engine_init(const char *engine_id, ENGINE **pe)
+ {
+ const char *key_pass;
+@@ -380,6 +460,7 @@ static void rsa_engine_remove(ENGINE *e)
+ ENGINE_free(e);
+ }
+ }
++#endif
+
+ static int rsa_sign_with_key(EVP_PKEY *pkey, struct padding_algo *padding_algo,
+ struct checksum_algo *checksum_algo,
+@@ -480,11 +561,13 @@ int rsa_sign(struct image_sign_info *info,
+ if (ret)
+ return ret;
+
++#ifdef USE_PKCS11_ENGINE
+ if (info->engine_id) {
+ ret = rsa_engine_init(info->engine_id, &e);
+ if (ret)
+ return ret;
+ }
++#endif
+
+ ret = rsa_get_priv_key(info->keydir, info->keyname, info->keyfile,
+ e, &pkey);
+@@ -496,16 +579,21 @@ int rsa_sign(struct image_sign_info *info,
+ goto err_sign;
+
+ EVP_PKEY_free(pkey);
++
++#ifdef USE_PKCS11_ENGINE
+ if (info->engine_id)
+ rsa_engine_remove(e);
++#endif
+
+ return ret;
+
+ err_sign:
+ EVP_PKEY_free(pkey);
+ err_priv:
++#ifdef USE_PKCS11_ENGINE
+ if (info->engine_id)
+ rsa_engine_remove(e);
++#endif
+ return ret;
+ }
+
+@@ -645,11 +733,13 @@ int rsa_add_verify_data(struct image_sign_info *info, void *keydest)
+ ENGINE *e = NULL;
+
+ debug("%s: Getting verification data\n", __func__);
++#ifdef USE_PKCS11_ENGINE
+ if (info->engine_id) {
+ ret = rsa_engine_init(info->engine_id, &e);
+ if (ret)
+ return ret;
+ }
++#endif
+ ret = rsa_get_pub_key(info->keydir, info->keyname, e, &pkey);
+ if (ret)
+ goto err_get_pub_key;
+@@ -726,8 +816,10 @@ int rsa_add_verify_data(struct image_sign_info *info, void *keydest)
+ err_get_params:
+ EVP_PKEY_free(pkey);
+ err_get_pub_key:
++#ifdef USE_PKCS11_ENGINE
+ if (info->engine_id)
+ rsa_engine_remove(e);
++#endif
+
+ if (ret)
+ return ret;
@@ -1,4 +1,6 @@
require u-boot-common.inc
require u-boot-tools.inc
-SRC_URI += "file://0001-tools-mkeficapsule-Detect-GnuTLS-PKCS-11-support.patch"
+SRC_URI += "file://0001-tools-mkeficapsule-Detect-GnuTLS-PKCS-11-support.patch \
+ file://0001-Add-support-for-OpenSSL-Provider-API.patch \
+ "
OpenSSL 4.0 removed the ENGINE API entirely. u-boot-tools uses ENGINE_get_id, ENGINE_load_public_key, ENGINE_finish, ENGINE_free in lib/rsa/rsa-sign.c which causes link failures. Backport the Provider API support patch from upstream u-boot which adds OpenSSL Provider support while maintaining backward compatibility with older OpenSSL versions that still have ENGINE. Upstream-Status: Backport [https://github.com/u-boot/u-boot/pull/918] Signed-off-by: Jaipaul Cheernam <jaipaul.cheernam@est.tech> --- ...Add-support-for-OpenSSL-Provider-API.patch | 300 ++++++++++++++++++ .../u-boot/u-boot-tools_2026.07.bb | 4 +- 2 files changed, 303 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-bsp/u-boot/files/0001-Add-support-for-OpenSSL-Provider-API.patch