# Key Management
ey management is most sensible aspect of a wallet or web3 app. That is why we propose several options for storing and managing the end-user private key.
| Key Management | Description |
| --------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Phone Storage | Private key is stored on the phone. More information in the [Security](https://get-verso.gitbook.io/get-verso-launch-your-web3-app-faster/security) section. |
| Circle Programmable Wallet | Key Management, Signature, Sign Message or Submit Transaction (Circle Smart Contract Platform) handled by Circle back-end after end-user authentication (via email or social login).
Demo here
|
| B.Chain Hardware Wallet by IDEMIA | Private key is store in external secured device. [Demo here](https://get-verso.gitbook.io/get-verso-launch-your-web3-app-faster/demo-videos/app-example-b.chain-hardware-wallet-companion-app) |
| MPC - Web3 Auth | Private key is handled by an external set of providers. User authenticate with email OR Social Network login. |
| Zk Waas - Particle Network | Private key is handled by an external provider. User authenticate with email OR Social Network login. |
| External App - WalletConnect Web3 Modal | Key is handled by another app installed in the same device. User login using WalletConnect Modal View through a WalletConnect compliant Wallet.
Full list of compatible wallet here.
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