Technical Field
The embodiments of the present invention relate to the field of digital currency technology, specifically addressing a wallet terminal for digital currencies, a currency trading system, and a transaction method.
Background
Digital currencies like Bitcoin and Ethereum are built on blockchain technology—a decentralized ledger system. Key characteristics include:
- Decentralization: No central authority controls issuance.
- Fixed Supply: Algorithm-determined caps prevent inflation.
- Secure Transactions: Network-wide validation ensures security.
Bitcoin, introduced in 2009, operates via a peer-to-peer (P2P) network, eliminating intermediaries. Its cryptographic design ensures anonymity and security against counterfeiting.
Wallet Fundamentals
A wallet stores and manages digital assets, involving:
- Wallet Address: Analogous to a bank account (public identifier).
Public/Private Keys: Cryptographic pairs enabling secure transactions.
- Private Key: Must remain confidential—controls asset ownership.
- Public Key: Derives the wallet address.
Challenge: Traditional wallets remain online, exposing private keys to hacking risks.
Invention Summary
This invention introduces an offline wallet terminal that minimizes private key exposure, enhancing security.
Core Components
Wallet Terminal:
- Controller: Manages operations.
- Display: Shows QR codes for address/signature sharing.
- Camera: Scans transaction QR codes.
- Memory: Stores private keys and addresses.
Modules:
- Address QR Generator: Converts wallet addresses to scannable codes.
- Transfer Module: Signs transactions offline.
Transaction Workflow:
- Step 1: Recipient displays payment request via QR code.
- Step 2: Wallet scans request, signs offline, and outputs a signature QR.
- Step 3: Network node scans signature to validate and record the transaction.
Security Advantage:
- Private keys never touch the internet—physically isolated.
FAQs
1. How does this wallet prevent hacking?
By keeping private keys offline and using optical (QR) communication, it eliminates network-based attacks.
2. Can I check my balance without going online?
Yes. The wallet displays its address via QR, which a networked device scans to query the blockchain.
3. What happens if the wallet is lost?
Without the private key, funds are inaccessible—backup protocols are critical.
👉 Explore secure wallet solutions
Conclusion
This innovation bridges security and convenience, leveraging QR codes for safe transactions while ensuring private keys remain offline—a major leap in digital asset protection.
👉 Learn more about blockchain security
### Keywords:
- Digital currency wallet
- Offline transaction security
- Private key protection
- QR code transactions
- Blockchain technology
- Cryptocurrency safety
- Hardware wallet
- Decentralized finance (DeFi)