Vancouver-based Dynamite Blockchain Corp. has integrated biometric cryptography and AI-powered liveness detection into its Dynamite Wallet, replacing conventional seed phrases and persistent private keys with a model in which the user’s face is used to derive a one-time private key at the moment of each transaction.
The wallet operates through a five-step flow. A facial scan combined with AI liveness detection confirms that a real person is present and that the capture is not a static image or a video replay. The biometric data is converted into an encrypted cryptographic signature, which is used to generate an ephemeral private key. That key signs the transaction and is destroyed immediately after, meaning there is no persistent private key stored on the device or in any company infrastructure. The user authenticates again with a fresh biometric scan for the next transaction.
The framing responds to two persistent failure modes in consumer crypto wallets: seed-phrase loss or theft, and phishing flows that trick users into exposing private keys. Eliminating the persistent private key shifts the attack surface from the key itself to the biometric capture and liveness check, which Dynamite argues is easier to harden than a 12- or 24-word recovery phrase.
The Dynamite Wallet supports six networks at launch: Bitcoin, Kaspa, Solana, Tron, Ethereum, and Binance Smart Chain. The underlying cryptography comes from Kaspa Secure Technologies Inc., which Dynamite acquired in May 2025 as part of its build-out of the wallet platform. Chief executive officer Akshay Sood said the approach is aimed at reducing onboarding friction for users who have been deterred by the complexity of conventional self-custody, while preserving the security guarantees needed for a production wallet.
The pattern of replacing seed phrases with biometric-derived cryptographic material has been gaining traction across the crypto wallet space. Trust Stamp announced a biometric Wallet of Wallets secured by a tokenized facial-scan stable key last year, and Flare launched the Luminite wallet with seedless login and XRP DeFi access as part of the same broader trend. The approaches differ in whether the biometric produces a stable cryptographic key or a single-use derivation, but they share a common premise: that biometric-bound authentication can replace the seed phrase as the root of self-custody without reintroducing a centralized key custodian.
Dynamite did not disclose a detailed third-party security audit of the wallet’s biometric cryptography stack, the specific liveness detection model, or the jurisdictions in which the wallet will be initially distributed. The model’s resilience against high-fidelity presentation attacks will depend on the underlying liveness engine, which has not been identified by vendor.
Sources: Dynamite Blockchain (PR Newswire)
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By the ID Tech Editorial Team
