Titan Security Key, Chip Boundary
Titan Security Key, Chip Boundary, from Google, LLC., holds FIPS 140-2 certificate #3851 at overall level 1. The validation is historical: agencies may keep the module in existing systems but not buy it new. Below are its validation history, algorithm certificates and security policy, drawn from the NIST CMVP entry.
Caveat: When operated in FIPS mode
Certificate
| Certificate number | 3851 |
|---|---|
| Standard | FIPS 140-2 |
| Status | historical |
| Overall level | 1 |
| Module type | Hardware |
| Embodiment | Single Chip |
| Vendor | Google, LLC. · website |
| Hardware versions | H1B2 |
| Firmware versions | 1.2 |
Module description
Quoted from the NIST CMVP entry for this certificate.
Implemented with Google's "Titan" secure microcontroller and custom firmware, the Titan Security Key is a FIPS-compliant Universal 2nd Factor (U2F) authenticator and hardware root of trust.
Security level exceptions
- Physical Security: Level 3
- Mitigation of Other Attacks: N/A
Approved algorithms (7)
Allowed algorithms
EC Diffie-Hellman (key agreement, key establishment methodology provides 128 bits of encryption strength); NDRNG
Tested configurations
- N/A
Validation history
| Date | Type | Lab |
|---|---|---|
| 2021-03-18 | Initial | Acumen Security |
Status timeline
As observed by this tracker's snapshots. NIST publishes no dates for list moves; observation began 2026-08-21, so earlier changes carry no date.
- 2026-08-21: first observed by this tracker, status historical
- Validation dates on record: 2021-03-18