Custom Nostr Hardware Wallet With Persistent Secret
Research family for a purpose-built persistent-secret Nostr hardware wallet: custom ESP32-S3 boards, secure-element-assisted prototypes, and firmware hardening. The default research path is host-MCU signing unless secure-element direct BIP-340 (e.g. TROPIC01 Schnorr) is independently proven.
| Feature | Target | Current | Contract |
|---|---|---|---|
request_validation_v0 | required | planned | signing-request-v0+implementation-limits-v0+invalid-vectors |
nostr_event_review_universal | required | planned | trusted-review-v0+review-detail-pages-v0 |
review_detail_pages | required | planned | review-detail-pages-v0 |
approval_digest_binding | required | planned | approval-digest-v0 |
physical_approval | required | planned | physical-approval-v0 |
sign_event_bip340 | required | research | nostr-sign-event-bip340-v0 |
persistent_secret_custody | required | research | persistent-secret-custody-v0 |
secure_boot_hardening | required | research | firmware-boot-hardening-v0 |
device_display_review | required | planned | device-display-review-v0 |
response_verification | required | planned | signed-response-verification-v0 |
stateless_session_custody | forbidden | forbidden | — |
Repository
Open hardware: github.com/nSealr/hardware. ESP32 firmware references: github.com/nSealr/esp32.