Bitbox02 Nova
The Swiss-made BitBox02 Nova secures your coins with open-source firmware, EAL6+ secure chip, and a tempered glass display. It features native iPhone and iPad support, and easy backup via microSD.
What you should know about Bitbox02 Nova
- Swiss Security: Dual-chip architecture with a high-end EAL6+ secure chip and fully open-source firmware.
- Native iOS Support: The first BitBox to offer native compatibility with iPhones and iPads via USB-C or Bluetooth.
- Whisper Bluetooth: Secure, encrypted communication system for wireless mobile use without compromising your private keys.
- Rugged Hardware: Features a durable tempered glass display and a refined, discreet design for secure on-the-go usage.
Pros & Cons
Strengths
- + Native iPhone and iPad support via Bluetooth
- + EAL6+ certified secure chip for high-grade security
- + Fully open-source firmware
- + Simple backup via microSD card
- + Choice between Bitcoin-only and Multi editions
- + Premium tempered glass display
- + Native WalletConnect support for DApps
Weaknesses
- - Bluetooth connectivity may be a concern for extreme security purists (can be disabled)
- - Small form factor might be difficult for users with limited dexterity
- - iOS support limited to Bluetooth (no USB connection for iPhone)
Facts about the Bitbox02 Nova
Bitbox02 Nova Topics
BitBox02 Nova FAQ
How does the BitBox02 Nova handle multisig quorums compared to traditional single-signature setups?
The BitBox02 Nova provides native, robust support for multisignature (multisig) configurations directly within its firmware and companion app. Unlike single-signature setups where a single private key controls the funds, a multisig quorum requires multiple distinct hardware devices to authorize a transaction. This drastically reduces the risk of a single point of failure, making it ideal for institutional custody or individuals seeking advanced security.
Can the device facilitate partially signed Bitcoin transactions (PSBT) for air-gapped security?
Yes, the BitBox02 Nova is fully compatible with the Partially Signed Bitcoin Transaction (PSBT) standard. This allows users to construct a transaction on an internet-connected device, export the PSBT to a microSD card, and then sign it offline on the BitBox02 Nova. This method ensures your private keys remain completely air-gapped from potentially compromised networks.
What mechanisms does the BitBox02 Nova employ to thwart physical extraction techniques like side-channel attacks?
The device employs a dual-chip architecture featuring an EAL6+ certified secure element alongside a general-purpose microcontroller. The secure element stores the cryptographic secrets and performs sensitive operations, while the microcontroller handles the interface. This architecture is specifically designed to resist sophisticated physical attacks, including power analysis, fault injection, and electromagnetic side-channel attacks.
How does the deterministic build process of the BitBox02 Nova firmware guarantee software integrity?
The firmware for the BitBox02 Nova uses a reproducible, deterministic build process. This means that anyone can compile the open-source code from the public repository and achieve the exact same binary output as the official release. This provides verifiable proof that the firmware loaded onto the device matches the audited source code, eliminating the risk of hidden backdoors introduced during compilation.
Does the BitBox02 Nova support advanced coin control features for enhanced on-chain privacy?
The BitBoxApp, the companion software for the BitBox02 Nova, includes advanced coin control functionalities. This allows users to manually select which specific Unspent Transaction Outputs (UTXOs) are consumed when sending a transaction. By avoiding the automatic consolidation of disparate UTXOs, users can prevent blockchain observers from linking their various addresses and compromising their financial privacy.
Bitbox02 Nova FAQ
What devices are compatible with the BitBox02 Nova?
The BitBox02 Nova is compatible with all major desktop and mobile devices. It seamlessly supports Windows, macOS, Linux, and Android operating systems, and natively integrates with iPhone and iPad.
How secure is the BitBox02 Nova?
It employs an EAL6+ certified secure chip to provide enhanced physical protection of your private keys against tampering, paired with open-source firmware for complete transparency.
How does the BitBox02 Nova connect to my devices?
It supports direct USB-C connections and offers optional Bluetooth Low Energy (BLE) using a custom, minimal-trust architecture called Whisper.
How do I back up my BitBox02 Nova?
The device features instant backup and recovery using an included microSD card. For users who prefer a traditional approach, standard 24-word BIP-39 recovery words are also available as a backup option.
Are there different versions of the BitBox02 Nova?
Yes. The hardware wallet is available in a dedicated Bitcoin-only edition for maximum security, as well as a Multi edition that supports numerous altcoins.
What kind of display does it have?
The hardware wallet features a crystal-clear, scratch-resistant tempered glass display with invisible touch sliders for secure and intuitive navigation.