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client-ip=149.6.166.170;\n helo=proxy.softathome.com; pr=C","From":"Philippe Reynes ","To":"marko.makela@iki.fi, jonny.green@keytechinc.com, raymondmaoca@gmail.com,\n trini@konsulko.com, simon.glass@canonical.com","Cc":"u-boot@lists.denx.de,\n\tPhilippe Reynes ","Subject":"[PATCH v4 04/14] drivers: crypto: add software ecdsa support","Date":"Fri, 17 Apr 2026 15:01:54 +0200","Message-ID":"<20260417130204.49896-5-philippe.reynes@softathome.com>","X-Mailer":"git-send-email 2.43.0","In-Reply-To":"<20260417130204.49896-1-philippe.reynes@softathome.com>","References":"<20260417130204.49896-1-philippe.reynes@softathome.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-EOPAttributedMessage":"0","X-MS-PublicTrafficType":"Email","X-MS-TrafficTypeDiagnostic":"MR1PEPF00000D57:EE_|MR0P264MB4730:EE_","Content-Type":"text/plain","X-MS-Office365-Filtering-Correlation-Id":"01531271-3c87-407e-0c70-08de9c81895b","X-MS-Exchange-SenderADCheck":"1","X-MS-Exchange-AntiSpam-Relay":"0","X-Microsoft-Antispam":"BCL:0;\n ARA:13230040|82310400026|376014|36860700016|1800799024|56012099003|18002099003|22082099003;","X-Microsoft-Antispam-Message-Info":"\n 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","X-Forefront-Antispam-Report":"CIP:149.6.166.170; 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Ip=[149.6.166.170];\n Helo=[proxy.softathome.com]","X-MS-Exchange-CrossTenant-AuthSource":"MR1PEPF00000D57.FRAP264.PROD.OUTLOOK.COM","X-MS-Exchange-CrossTenant-AuthAs":"Anonymous","X-MS-Exchange-CrossTenant-FromEntityHeader":"HybridOnPrem","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"MR0P264MB4730","X-BeenThere":"u-boot@lists.denx.de","X-Mailman-Version":"2.1.39","Precedence":"list","List-Id":"U-Boot discussion ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" ","X-Virus-Scanned":"clamav-milter 0.103.8 at phobos.denx.de","X-Virus-Status":"Clean"},"content":"Add a software ecdsa driver so it is\nnow possible to use ecdsa signature on\nboard without ecdsa hardware support.\n\nSigned-off-by: Philippe Reynes \n---\nv2:\n- no change\nv3:\n- add depends on ECDSA_VERIFY to ECDSA_SW\n- change sw_ecdsa_verify to ecdsa_hash_verify\n- v4\n- use ECDSA_MBEDTLS to build the driver\n- clean include (change order)\n\n drivers/crypto/Makefile | 1 +\n drivers/crypto/ecdsa/Makefile | 6 ++++++\n drivers/crypto/ecdsa/ecdsa-sw.c | 33 +++++++++++++++++++++++++++++++++\n 3 files changed, 40 insertions(+)\n create mode 100644 drivers/crypto/ecdsa/Makefile\n create mode 100644 drivers/crypto/ecdsa/ecdsa-sw.c","diff":"diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile\nindex e4a4482b7f3..8170e4cae9c 100644\n--- a/drivers/crypto/Makefile\n+++ b/drivers/crypto/Makefile\n@@ -4,6 +4,7 @@\n #\thttp://www.samsung.com\n \n obj-$(CONFIG_EXYNOS_ACE_SHA)\t+= ace_sha.o\n+obj-$(CONFIG_ECDSA) += ecdsa/\n obj-y += aes/\n obj-y += rsa_mod_exp/\n obj-y += fsl/\ndiff --git a/drivers/crypto/ecdsa/Makefile b/drivers/crypto/ecdsa/Makefile\nnew file mode 100644\nindex 00000000000..53456d9cb4c\n--- /dev/null\n+++ b/drivers/crypto/ecdsa/Makefile\n@@ -0,0 +1,6 @@\n+# SPDX-License-Identifier: GPL-2.0+\n+#\n+# Copyright (C) 2026 Philippe Reynes \n+#\n+\n+obj-$(CONFIG_ECDSA_MBEDTLS) += ecdsa-sw.o\ndiff --git a/drivers/crypto/ecdsa/ecdsa-sw.c b/drivers/crypto/ecdsa/ecdsa-sw.c\nnew file mode 100644\nindex 00000000000..21dffeddf59\n--- /dev/null\n+++ b/drivers/crypto/ecdsa/ecdsa-sw.c\n@@ -0,0 +1,33 @@\n+// SPDX-License-Identifier: GPL-2.0+\n+/*\n+ * Copyright (C) 2026 Philippe Reynes \n+ */\n+#include \n+#include \n+#include \n+#include \n+#include \n+\n+static int ops_sw_ecdsa_verify(__always_unused struct udevice *dev,\n+\t\t\t const struct ecdsa_public_key *pubkey,\n+\t\t\t const void *hash, size_t hash_len,\n+\t\t\t const void *signature, size_t sig_len)\n+{\n+\treturn ecdsa_hash_verify(pubkey, hash, hash_len, signature, sig_len);\n+}\n+\n+static const struct ecdsa_ops sw_ecdsa_ops = {\n+\t.verify = ops_sw_ecdsa_verify,\n+};\n+\n+U_BOOT_DRIVER(sw_ecdsa) = {\n+\t.name\t= \"sw_ecdsa\",\n+\t.id\t= UCLASS_ECDSA,\n+\t.ops\t= &sw_ecdsa_ops,\n+\t.flags\t= DM_FLAG_PRE_RELOC,\n+};\n+\n+U_BOOT_DRVINFO(sw_ecdsa) = {\n+\t.name = \"sw_ecdsa\",\n+};\n+\n","prefixes":["v4","04/14"]}