> For the complete documentation index, see [llms.txt](https://docs.emudhradigital.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emudhradigital.com/documentation/remote-key-storage.md).

# Remote Key Storage

**Remote Key Storage** gives a subscriber a long-term DSC whose private key is held in an eMudhra HSM and unlocked with an AuthPIN verified inside the HSM (CCA eSign Remote API 1.1).

In this section:

* **Remote Key Storage Overview** — capabilities and typical users
* **Architecture and Components** — KMS, SAM, CHI, SHI and HSM
* **Certificate Enrolment** — key generation and certificate issuance
* **AuthPIN and Signer Security** — PIN rules, lockout and session tokens
* **Signing with a Stored Key** — batch signing of up to 10 documents
* **API Specification** — enrolment, signing and status operations