Air gap, one Self-hosted Bitcoin and crypto wallets with storage apps, Announced its latest version today. In the update v3.11.0, AirGap implements support for Bitcoin (BTC) Segregated Witness, and improves secret import and entropy collection through dice rolls.
Segregated Witness (SegWit) is an update to the Bitcoin protocol, which modifies the way data is stored in the blockchain. This update brings multiple benefits, including increased scalability, faster transaction times, and most importantly, lower transaction fees.
To use SegWit with AirGap, existing users of BTC need to generate a new address in AirGap Vault and send funds to the new SegWit address.
Other improvements include:
Collect entropy by tossing dice and coins
The secret generation of dice and coin toss is a security feature that can generate security mnemonics by using a specific entropy input sequence. The advantage of this is that users can collect their entropy without any digital help from the built-in device RNG (Random Number Generator).
On the import page, there is now an advanced switch. Then, the user can choose to roll a dice or a coin as the way to generate the mnemonic.
New safety mnemonic import function (built-in keyboard)
The AirGap team has now replaced the normal device keyboard with its own virtual keyboard.
This produces the following advantages:
- The keyboard cannot record/save mnemonics (some device keyboards will do this to check spelling and send all input to the server-this is not good for security). AirGap’s keyboard does not use any external dependencies and is included in the application.
- The new keyboard only allows the import of valid words in the BIP39 list. So there can be no more typos/double spaces, etc.
- The keyboard has the BIP39 word auto-completion function, which can speed up the import speed.
- There is a “scramble” button that can change the order of the letters on the keyboard, and if someone crosses their shoulders, it can improve security.
- There is a “hide” button to conceal the mnemonic that has been entered, which can improve security if someone is watching over the shoulder.
BIP85 sub-mnemonic management
When generating the BIP85 sub-mnemonic, you can now import the sub-mnemonic directly into AirGap as a secret. So the user does not need to write it down before importing.
“AirGap’s security features are constantly evolving. In addition to the two new security features mentioned above, we also support the PSBT standard (BIP-174), which means that Vault is now compatible with other watch wallets, although this is currently in the testing phase.”
– AirGap team