Advanced Features
Advanced Security Features
Multi-Signature (Multisig) Support
Cardware Wallet includes multisig capabilities that require multiple private keys to authorize a transaction. This feature distributes signing authority across multiple parties or devices, lowering the risk of unauthorized access. Multisig is especially beneficial for institutional investors, collaborative funds, or joint account setups by providing enhanced control and security.
Hierarchical Deterministic (HD) Wallets
The wallet supports BIP-32 compliant HD functionality, allowing users to generate an unlimited number of private keys from a single master seed. This tree-like key derivation not only streamlines wallet management but also enhances privacy by enabling a new address for each transaction without exposing the master key
Broad Cryptocurrency Compatibility
Cardware Wallet is available in two product versions:
BTC-Only Version: Exclusively supports Bitcoin (BTC).
BTC and EVM Version: Supports Bitcoin alongside Ethereum (ETH & ERC-20 tokens) and any EVM-compatible blockchain.
Both versions are optimized for secure, efficient transaction processing, ensuring reliable performance across supported networks.
QR Code-Based Transactions
Transactions are securely managed via a QR code system. The Web Wallet generates a partially signed bitcoin transaction (PSBT), which is then scanned by the Cardware device to sign the transaction and display the signed transaction as QR codes. The Web Wallet then broadcasts these signed transactions to the network. This air-gapped approach keeps private keys isolated from network exposure, significantly reducing risks from malware or remote attacks.
Backup and Recovery Options
The wallet implements robust backup and recovery features centered on a 24-word mnemonic seed phrase. This seed phrase is the root for all derived keys and is essential for restoring the wallet if needed. For added durability, a steel seed phrase sheet is provided to protect against environmental damage (fire, water, etc.). Additionally, the Cardware wallet supports restoring your private key upon setup.
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