Credential storage is the secure persistence of authentication secrets and verifiable credentials—such as passwords, keys, tokens, and signed attestations—so they can be protected at rest and retrieved for verification. It employs encryption, hardware-backed enclaves, and access controls to resist theft and tampering. It is a required capability of any digital identity management system.
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- Robust storage layers credentials behind encryption, key-management hierarchies, and hardware security modules or secure enclaves, with strict access policies and audit logging. Design trade-offs balance recoverability against breach resistance, and increasingly favour user-held or device-bound storage over centralised credential databases.