A cryptocurrency wallet is essentially a tool for managing blockchain keys and addresses. It's a software program that stores your digital assets. Think of it this way:
- Address = Bank account number
- Private Key = Bank account number + PIN
- Seed Phrase = Bank account number + PIN
How Wallets Are Categorized
Cryptocurrency wallets can be classified based on these key criteria:
1. Who Controls the Private Key/Seed Phrase?
- Self-Custody Wallets: Users hold their private keys (transactions are recorded on the blockchain).
- Custodial Wallets: Third-party services manage private keys (internal transfers occur off-chain).
2. Storage Method for Private Keys
- Software Wallets: Apps or desktop programs (no additional hardware needed).
- Hardware Wallets: Dedicated physical devices (e.g., USB-like gadgets).
3. Internet Exposure
Cold Wallets: Offline storage (highest security):
- Hardware wallets (e.g., secure USB devices)
- Paper wallets (printed private keys)
- Brain wallets (memorized keys)
- Hot Wallets: Internet-connected (convenient but less secure).
4. Supported Currencies
- Single-Asset Wallets: Designed for one cryptocurrency.
- Multi-Asset Wallets: Support numerous blockchains.
OneKey Wallet Examples
OneKey Software Wallet (App/Browser Extension)
- Self-custody (transactions on-chain)
- Encrypted local storage (on your device)
- Hot wallet (seed phrase interacts with network)
- Multi-currency support (BIP32/BIP39 compliant)
OneKey Hardware Wallet
- Self-custody (on-chain transactions)
- Secure chip storage (dedicated hardware)
- Cold wallet (fully offline)
- Multi-currency support (BIP32/BIP39 compliant)
⚠️ Warning: Always back up your seed phrase securely—OneKey cannot recover lost phrases!
How Seed Phrases Work (Simplified)
- Random number → Mapped to dictionary words
- Seed phrase → Master private key
- Private key → Public key → Address
(Details: BIP32/BIP39 protocols)
👉 Learn more about blockchain security
FAQ
1. Why Shouldn’t I Import a Hardware Wallet Seed into a Hot Wallet?
Hardware wallets isolate keys from the internet. Exposing them to software wallets defeats their security purpose.
2. Why Does OneKey Generate Multiple Addresses?
A master public key creates numerous child keys, each producing unique addresses (BIP32/BIP39).
3. What If I Already Exposed My Hardware Wallet Seed?
- Funds present: Transfer them out, then reset the hardware wallet.
- No funds: Reset and create a new wallet immediately.
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