Bluetooth security is built on two foundations: The security mechanisms mandated by the Bluetooth Specifications of the Bluetooth SIG, and the features implemented on vendor silicon. This resource shows what security features are available on Ezurio's line of Bluetooth modules. The legend below explains what features are supported or unsupported, partially supported, or stack dependent.
For a deeper look at each feature, see our Bluetooth Security Features Overview.
| Module Information | BT SIG Security Specifications | Silicon Security Features | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Module | Core SoC | BT Spec Version | LE Secure Connections | Encrypted Advertising (EAD, ≥5.4) | ARM TrustZone-M | Hardware Root of Trust | Cryptographic Engine | HW-Protected Key Storage | Hardware TRNG | Secure Boot (HW-enforced) | Rollback Protection | Secure OTA (Crypto-verified) | Debug Lock / APPROTECT | Tamper Detection | Remote Attestation |
| BL54H20* | nRF54H20 | 6.0 | ✓ | ✓ | ✓ | ✓ | CRACEN | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| BL54LM20 * | nRF54LM20 | 6.0 | ✓ | ✓ | ✓ | ✓ | CRACEN | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| BL54L10 | nRF54L10 | 6.0 | ✓ | ✓ | ✓ | ✓ | CRACEN | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| BL54L15 | nRF54L15 | 6.0 | ✓ | ✓ | ✓ | ✓ | CRACEN | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| BL54L15μ | nRF54L15 | 6.0 | ✓ | ✓ | ✓ | ✓ | CRACEN | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| BL5340 | nRF5340 | 5.3 | ✓ | ✗ | ✓ | ✓ | CryptoCell-312 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ | ✓ |
| BL5340PA | nRF5340 + nRF21540 | 5.3 | ✓ | ✗ | ✓ | ✓ | CryptoCell-312 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ | ✓ |
| BL654 | nRF52840 | 5.3 | ✓ | ✗ | ✗ | ~ | CryptoCell-310 | ~ | ✓ | ~ | ~ | ~ | ✓ | ✗ | ✗ |
| BL654PA | nRF52840 + PA | 5.1 | ✓ | ✗ | ✗ | ~ | CryptoCell-310 | ~ | ✓ | ~ | ~ | ~ | ✓ | ✗ | ✗ |
| BL653 | nRF52833 | 5.4 | ✓ | ✗ | ✗ | ~ | AES/ECB/CCM HW | ~ | ✓ | ~ | ~ | ~ | ✓ | ✗ | ✗ |
| BL653μ | nRF52833 | 5.4 | ✓ | ✗ | ✗ | ~ | AES/ECB/CCM HW | ~ | ✓ | ~ | ~ | ~ | ✓ | ✗ | ✗ |
| BL652 | nRF52832 | 5.0 | ✓ | ✗ | ✗ | ~ | AES/ECB/CCM HW | ~ | ✓ | ~ | ~ | ~ | ✓ | ✗ | ✗ |
| BL651 | nRF52810 | 5.0 | ✓ | ✗ | ✗ | ✗ | AES HW only | ✗ | ✓ | ~ | ✗ | ~ | ✓ | ✗ | ✗ |
| Lyra 24 | EFR32BG24 | 5.4 | ✓ | ✓ | ✓ | ✓ | Crypto Accelerator (SV High) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Lyra | EFR32BG22 | 5.3 | ✓ | ✗ | ✓ | ✓ | Crypto Accelerator (SV Mid) | ~ | ✓ | ✓ | ✓ | ✓ | ✓ | ✗ | ✗ |
| Vela IF820 | CYW20820 | 5.4 | ✓ | ✓ | ✗ | ✗ | ROM-based AES-128 + ECDSA (ROM) | ✗ | ✓ | ✗ | ✗ | ~ | ✓ | ✗ | ✗ |
| Vela IF310 | CYW55310 | 6.0 | HCI | ✓ | ~ | ~ | ~ | ~ | ~ | ~ | ~ | ~ | ~ | ✗ | ~ |
| BT850 (USB HCI) | CYW20704 | 5.0 | HCI | ✗ | ✗ | ✗ | BT Baseband HW | ✗ | ~ | ✗ | ✗ | HCI | ~ | ✗ | HCI |
| BT860 (UART HCI) | CYW20704 | 5.0 | HCI | ✗ | ✗ | ✗ | BT Baseband HW | ✗ | ~ | ✗ | ✗ | HCI | ~ | ✗ | HCI |