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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/oberon/oberon_backend_ecc.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/oberon/oberon_backend_ecc.h
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index 0000000..2fa7d1e
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+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/oberon/oberon_backend_ecc.h
@@ -0,0 +1,314 @@
+/**
+ * Copyright (c) 2018 - 2018, Nordic Semiconductor ASA
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, must reproduce the above copyright notice, this list of
+ *    conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ * 
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+
+#ifndef OBERON_BACKEND_ECC_H__
+#define OBERON_BACKEND_ECC_H__
+
+#include "sdk_config.h"
+#include "nordic_common.h"
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "nrf_crypto_ecc_shared.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_private_key_from_raw_fn_t.
+*/
+ret_code_t nrf_crypto_backend_oberon_private_key_from_raw(
+    void          * p_private_key,
+    uint8_t const * p_raw_data);
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_private_key_to_raw_fn_t.
+*/
+ret_code_t nrf_crypto_backend_oberon_private_key_to_raw(
+    void    const * p_private_key,
+    uint8_t       * p_raw_data);
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_public_key_from_raw_fn_t.
+*/
+ret_code_t nrf_crypto_backend_oberon_public_key_from_raw(
+    void          * p_public_key,
+    uint8_t const * p_raw_data);
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_public_key_to_raw_fn_t.
+*/
+ret_code_t nrf_crypto_backend_oberon_public_key_to_raw(
+    void const * p_public_key,
+    uint8_t    * p_raw_data);
+
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_SECP256R1)
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_ECC_SECP256R1)
+#error "More than one backend enabled for secp256r1 (NIST 256-bit).");
+#endif
+#define NRF_CRYPTO_ECC_SECP256R1_ENABLED 1
+
+
+/** @internal @brief Generates random number that can be used as a private key for secp256r1.
+ *
+ *  It uses RNG from libary frontend to generate random numbers.
+ *
+ *  @param[out] data    Array where generated random number will be placed.
+ *  @returns            NRF_SUCCESS or error code passed from RNG frontend.
+ */
+ret_code_t nrf_crypto_backend_oberon_ecc_secp256r1_rng(uint8_t data[32]);
+
+
+/** @internal @brief Structure holding private key for Oberon's secp256r1.
+ */
+typedef struct
+{
+    nrf_crypto_internal_ecc_key_header_t header;  /**< @internal @brief Common ECC key header. */
+    uint8_t key[32];                              /**< @internal @brief Raw key. */
+} nrf_crypto_backend_secp256r1_private_key_t;
+
+
+/** @internal @brief Structure holding public key for Oberon's secp256r1.
+ */
+typedef struct
+{
+    nrf_crypto_internal_ecc_key_header_t header;  /**< @internal @brief Common ECC key header. */
+    uint8_t key[64];                              /**< @internal @brief Raw key. */
+} nrf_crypto_backend_secp256r1_public_key_t;
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_key_pair_generate_fn_t.
+ */
+ret_code_t nrf_crypto_backend_secp256r1_key_pair_generate(
+    void * p_context,
+    void * p_private_key,
+    void * p_public_key);
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_public_key_calculate_fn_t.
+*/
+ret_code_t nrf_crypto_backend_secp256r1_public_key_calculate(
+    void       * p_context,
+    void const * p_private_key,
+    void       * p_public_key);
+
+
+// Common key conversion functions
+#define nrf_crypto_backend_secp256r1_private_key_from_raw \
+    nrf_crypto_backend_oberon_private_key_from_raw
+#define nrf_crypto_backend_secp256r1_private_key_to_raw \
+    nrf_crypto_backend_oberon_private_key_to_raw
+#define nrf_crypto_backend_secp256r1_public_key_from_raw \
+    nrf_crypto_backend_oberon_public_key_from_raw
+#define nrf_crypto_backend_secp256r1_public_key_to_raw \
+    nrf_crypto_backend_oberon_public_key_to_raw
+
+// Free is not required for oberon keys
+#define nrf_crypto_backend_secp256r1_private_key_free NULL
+#define nrf_crypto_backend_secp256r1_public_key_free NULL
+
+// Context is not used in oberon functions
+#define NRF_CRYPTO_BACKEND_SECP256R1_KEY_PAIR_GENERATE_CONTEXT_SIZE 0
+#define NRF_CRYPTO_BACKEND_SECP256R1_PUBLIC_KEY_CALCULATE_CONTEXT_SIZE 0
+
+// Dummy typedef for unused context
+typedef uint32_t nrf_crypto_backend_secp256r1_key_pair_generate_context_t;
+typedef uint32_t nrf_crypto_backend_secp256r1_public_key_calculate_context_t;
+
+
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_SECP256R1)
+
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_CURVE25519)
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_ECC_CURVE25519)
+#error "More than one backend enabled for Curve25519.");
+#endif
+#define NRF_CRYPTO_ECC_CURVE25519_ENABLED 1
+
+
+/** @internal @brief Structure holding private key for Oberon's Curve25519.
+ */
+typedef struct
+{
+    nrf_crypto_internal_ecc_key_header_t header;  /**< @internal @brief Common ECC key header. */
+    uint8_t key[32];                              /**< @internal @brief Raw key in little endian order. */
+} nrf_crypto_backend_curve25519_private_key_t;
+
+
+/** @internal @brief Structure holding public key for Oberon's Curve25519.
+ */
+typedef struct
+{
+    nrf_crypto_internal_ecc_key_header_t header; /**< @internal @brief Common ECC key header. */
+    uint8_t key[32];                             /**< @internal @brief Raw key in little endian order. */
+} nrf_crypto_backend_curve25519_public_key_t;
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_key_pair_generate_fn_t.
+ */
+ret_code_t nrf_crypto_backend_curve25519_key_pair_generate(
+    void * p_context,
+    void * p_private_key,
+    void * p_public_key);
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_public_key_calculate_fn_t.
+*/
+ret_code_t nrf_crypto_backend_curve25519_public_key_calculate(
+    void       * p_context,
+    void const * p_private_key,
+    void       * p_public_key);
+
+
+// Common key conversion functions
+#define nrf_crypto_backend_curve25519_private_key_from_raw \
+    nrf_crypto_backend_oberon_private_key_from_raw
+#define nrf_crypto_backend_curve25519_private_key_to_raw \
+    nrf_crypto_backend_oberon_private_key_to_raw
+#define nrf_crypto_backend_curve25519_public_key_from_raw \
+    nrf_crypto_backend_oberon_public_key_from_raw
+#define nrf_crypto_backend_curve25519_public_key_to_raw \
+    nrf_crypto_backend_oberon_public_key_to_raw
+
+// Free is not required for oberon keys
+#define nrf_crypto_backend_curve25519_private_key_free NULL
+#define nrf_crypto_backend_curve25519_public_key_free NULL
+
+// Context is not used in oberon functions
+#define NRF_CRYPTO_BACKEND_CURVE25519_KEY_PAIR_GENERATE_CONTEXT_SIZE 0
+#define NRF_CRYPTO_BACKEND_CURVE25519_PUBLIC_KEY_CALCULATE_CONTEXT_SIZE 0
+
+// Dummy typedef for unused context
+typedef uint32_t nrf_crypto_backend_curve25519_key_pair_generate_context_t;
+typedef uint32_t nrf_crypto_backend_curve25519_public_key_calculate_context_t;
+
+
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_CURVE25519)
+
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_ED25519)
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_ECC_ED25519)
+#error "More than one backend enabled for Ed25519.");
+#endif
+#define NRF_CRYPTO_ECC_ED25519_ENABLED 1
+
+
+
+/** @internal @brief Structure holding private key for Oberon's Ed25519.
+ */
+typedef struct
+{
+    nrf_crypto_internal_ecc_key_header_t header; /**< @internal @brief Common ECC key header. */
+    uint8_t private_part[32];                    /**< @internal @brief Raw private key. */
+    uint8_t public_part[32];                     /**< @internal @brief Raw public key. It is also required for Ed25519 signing. */
+} nrf_crypto_backend_ed25519_private_key_t;
+
+
+/** @internal @brief Structure holding private key for Oberon's Ed25519.
+ */
+typedef struct
+{
+    nrf_crypto_internal_ecc_key_header_t header; /**< @internal @brief Common ECC key header. */
+    uint8_t key[32];                             /**< @internal @brief Raw key. */
+} nrf_crypto_backend_ed25519_public_key_t;
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_private_key_from_raw_fn_t.
+*/
+ret_code_t nrf_crypto_backend_ed25519_private_key_from_raw(
+    void          * p_private_key,
+    uint8_t const * p_raw_data);
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_key_pair_generate_fn_t.
+ */
+ret_code_t nrf_crypto_backend_ed25519_key_pair_generate(
+    void * p_context,
+    void * p_private_key,
+    void * p_public_key);
+
+
+/** @internal See @ref nrf_crypto_backend_ecc_public_key_calculate_fn_t.
+*/
+ret_code_t nrf_crypto_backend_ed25519_public_key_calculate(
+    void       * p_context,
+    void const * p_private_key,
+    void       * p_public_key);
+
+
+// Common key conversion functions
+#define nrf_crypto_backend_ed25519_private_key_to_raw \
+    nrf_crypto_backend_oberon_private_key_to_raw
+#define nrf_crypto_backend_ed25519_public_key_from_raw \
+    nrf_crypto_backend_oberon_public_key_from_raw
+#define nrf_crypto_backend_ed25519_public_key_to_raw \
+    nrf_crypto_backend_oberon_public_key_to_raw
+
+// Free is not required for oberon keys
+#define nrf_crypto_backend_ed25519_private_key_free NULL
+#define nrf_crypto_backend_ed25519_public_key_free NULL
+
+// Context is not used in oberon functions
+#define NRF_CRYPTO_BACKEND_ED25519_KEY_PAIR_GENERATE_CONTEXT_SIZE 0
+#define NRF_CRYPTO_BACKEND_ED25519_PUBLIC_KEY_CALCULATE_CONTEXT_SIZE 0
+
+// Dummy typedef for unused context
+typedef uint32_t nrf_crypto_backend_ed25519_key_pair_generate_context_t;
+typedef uint32_t nrf_crypto_backend_ed25519_public_key_calculate_context_t;
+
+
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_ED25519)
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)
+
+#endif // OBERON_BACKEND_ECC_H__