noun
secure storage
Technical computing term for a protected storage area, such as a secure enclave or trusted storage region.
このチップは保証格納域に暗号鍵を安全に保管します。
This chip securely stores encryption keys in the secure storage.
Compound of 保証 (guarantee, assurance), 格納 (storage, housing), and 域 (area, region). The exact derivation is uncertain; the term is a modern technical coinage.