Hardware Signer: the Superior Free Alternative to a Hardware Wallet
” Transform your smartphone into an advanced Hardware Wallet protected with Face ID or fingerprint
Your funds are protected from malware and phishing attacks, reducing the risk in clicking malicious links
The Hardware Signer is a true two-factor authentication (2FA) mechanism that adds an extra layer of security to your wallet.
It utilizes the strong security chip in your mobile device (Secure Enclave / Secure Element / TEE) to provide unparalleled protection for your account.
The two factors are:
Something you have
Something you are
How to Activate Braavos Hardware Signer
Learning and Support 2
Frequently Asked Questions
How much does the Hardware Signer cost?
The Hardware Signer is already included in the Braavos wallet, offering a very high level of security. The only associated cost arises from the low gas fee transactions required to activate it.
How long does it take to activate the Hardware Signer?
It typically takes around 15-20 seconds, the time it takes to complete a transaction on Starknet.
What happens to my funds if I lose/break my phone
Your funds remain safe.
Once you reinstall the wallet on your new smartphone, you’ll be able to import your seed phrase. Then, you’ll be asked to sign a transaction called ‘Remove Hardware Signer’ and enable the Hardware Signer on your new phone.
What happens to my funds when I have a new phone?
Your funds remain safe as well.
You migrate the Hardware Signer to your new phone, by scanning a QR code presented inside the Braavos app on your new phone, with your old phone and sign the transaction to swap the Hardware Signer.
This way your account is continuously protected by the Hardware Signer.
Why is the Hardware Signer safer than a standard seed signer?
There are three main types of authentication:
- Something you know – e.g., a password
- Something you have – e.g., a physical device
- Something you are – e.g., your face or fingerprint
Effective security typically combines at least two of the above forms.
The Seed Signer relies solely on “something you know,” which is considered the weakest form of authentication.
In contrast, the Hardware Signer incorporates both “something you have”—your phone, where the key is securely stored in the device’s security module and cannot be extracted—and “something you are,” such as your biometric ID (face or fingerprint), which authorizes the security chip to sign transactions. As a result, you benefit from two-factor authentication (2FA), combining “something you have” and “something you are.
For a detailed walkthrough, see this tutorial: