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-rw-r--r--platform/include/tfm_plat_crypto_nv_seed.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/platform/include/tfm_plat_crypto_nv_seed.h b/platform/include/tfm_plat_crypto_nv_seed.h
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index 0000000000..39b9e377c3
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+++ b/platform/include/tfm_plat_crypto_nv_seed.h
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+/*
+ * Copyright (c) 2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+#ifndef __TFM_PLAT_CRYPTO_NV_SEED_H__
+#define __TFM_PLAT_CRYPTO_NV_SEED_H__
+
+#include <stddef.h>
+
+#ifndef NV_SEED_FILE_ID
+#define NV_SEED_FILE_ID 9
+#endif
+
+#define TFM_CRYPTO_NV_SEED_SUCCESS 0
+#define TFM_CRYPTO_NV_SEED_FAILED -1
+
+/**
+ * \brief Read Seed from NV storage.
+ *
+ * \param[out] buf Buffer to store the seed
+ * \param[in] buf_len Buffer length to read
+ *
+ * \return Return TFM_CRYPTO_NV_SEED_SUCCESS on success,
+ * or TFM_CRYPTO_NV_SEED_FAILED on failure.
+ */
+int tfm_plat_crypto_nv_seed_read(unsigned char *buf, size_t buf_len);
+
+/**
+ * \brief Write Seed to NV storage.
+ *
+ * \param[in] buf Buffer storing the seed
+ * \param[in] buf_len Buffer length to write
+ *
+ * \return Return TFM_CRYPTO_NV_SEED_SUCCESS on success,
+ * or TFM_CRYPTO_NV_SEED_FAILED on failure.
+ */
+int tfm_plat_crypto_nv_seed_write(unsigned char *buf, size_t buf_len);
+
+#endif /* __TFM_PLAT_CRYPTO_NV_SEED_H__ */