Update forked idf components

2 files changed, 102 insertions, 0 deletions

diff --git a/lib/bt/common/tinycrypt/port/esp_tinycrypt_port.c b/lib/bt/common/tinycrypt/port/esp_tinycrypt_port.c
new file mode 100644
index 00000000..c4424c56
--- /dev/null
+++ b/lib/bt/common/tinycrypt/port/esp_tinycrypt_port.c
@@ -0,0 +1,87 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include "esp_tinycrypt_port.h"
+
+#include "esp_crypto_lock.h"
+#include "esp_private/esp_crypto_lock_internal.h"
+
+#if SOC_ECC_SUPPORTED
+#include "hal/ecc_hal.h"
+#include "hal/ecc_ll.h"
+#endif /* SOC_ECC_SUPPORTED */
+
+
+#if SOC_ECC_SUPPORTED
+static void  esp_tinycrypt_acquire_ecc_hardware(void)
+{
+    esp_crypto_ecc_lock_acquire();
+
+    ECC_RCC_ATOMIC() {
+        ecc_ll_enable_bus_clock(true);
+        ecc_ll_power_up();
+        ecc_ll_reset_register();
+    }
+}
+
+static void  esp_tinycrypt_release_ecc_hardware(void)
+{
+    ECC_RCC_ATOMIC() {
+        ecc_ll_enable_bus_clock(false);
+        ecc_ll_power_down();
+    }
+
+    esp_crypto_ecc_lock_release();
+}
+
+int esp_tinycrypt_verify_ecc_point(const uint8_t *pk_x, const uint8_t *pk_y, uint8_t length)
+{
+    int result;
+
+    esp_tinycrypt_acquire_ecc_hardware();
+
+    ecc_hal_write_verify_param(pk_x, pk_y, length);
+    ecc_hal_set_mode(ECC_MODE_VERIFY);
+    ecc_hal_start_calc();
+    while (!ecc_hal_is_calc_finished());
+    result = ecc_hal_read_verify_result();
+
+    esp_tinycrypt_release_ecc_hardware();
+
+    if (result == 1) {
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+int esp_tinycrypt_calc_ecc_mult(const uint8_t *p_x, const uint8_t *p_y, const uint8_t *scalar,
+                                uint8_t *r_x, uint8_t *r_y, uint8_t num_bytes, bool verify_first)
+{
+    int ret = -1;
+    ecc_mode_t work_mode = verify_first ? ECC_MODE_VERIFY_THEN_POINT_MUL : ECC_MODE_POINT_MUL;
+
+    esp_tinycrypt_acquire_ecc_hardware();
+
+    ecc_hal_write_mul_param(scalar, p_x, p_y, num_bytes);
+    ecc_hal_set_mode(work_mode);
+    /*
+     * Enable constant-time point multiplication operations for the ECC hardware accelerator,
+     * if supported for the given target. This protects the ECC multiplication operation from
+     * timing attacks. This increases the time taken (by almost 50%) for some point
+     * multiplication operations performed by the ECC hardware accelerator.
+     */
+    ecc_hal_enable_constant_time_point_mul(true);
+    ecc_hal_start_calc();
+
+    while (!ecc_hal_is_calc_finished());
+
+    ret = ecc_hal_read_mul_result(r_x, r_y, num_bytes);
+
+    esp_tinycrypt_release_ecc_hardware();
+
+    return ret;
+}
+#endif /* SOC_ECC_SUPPORTED */
diff --git a/lib/bt/common/tinycrypt/port/esp_tinycrypt_port.h b/lib/bt/common/tinycrypt/port/esp_tinycrypt_port.h
new file mode 100644
index 00000000..4fdf82c2
--- /dev/null
+++ b/lib/bt/common/tinycrypt/port/esp_tinycrypt_port.h
@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include "soc/soc_caps.h"
+
+#if SOC_ECC_SUPPORTED
+int esp_tinycrypt_verify_ecc_point(const uint8_t *pk_x, const uint8_t *pk_y, uint8_t length);
+
+int esp_tinycrypt_calc_ecc_mult(const uint8_t *p_x, const uint8_t *p_y, const uint8_t *scalar,
+                                uint8_t *r_x, uint8_t *r_y, uint8_t num_bytes, bool verify_first);
+#endif /* SOC_ECC_SUPPORTED */