Wallet Portability
Exploring Capsule’s approach to wallet portability and seamless cross-application usage
Capsule allows users to seamlessly use their wallet across different applications and platforms, providing a more fluid and user-friendly experience in the crypto ecosystem.
Overview
In the crypto ecosystem, users often need to access the same wallet across various applications. However, this convenience can pose security risks if not managed properly. Capsule’s multi-app architecture addresses these challenges by implementing a sophisticated permissions scheme that balances accessibility with security.
Wallet portability is not about transferring assets between wallets, but rather accessing the same wallet from different applications and platforms.
Key Components
Capsule’s approach to wallet portability leverages its unique architecture and security features:
Unified User Identity
Capsule associates wallets with user identities (typically email addresses) rather than individual applications
Permissions Framework
A granular permissions system ensures that applications only have the access they need, enhancing security in a multi-app context
Seamless Authentication
Users can log in to new applications using their Capsule credentials, automatically gaining access to their existing wallet
Multi-Party Computation (MPC)
Capsule’s MPC-based key management allows for secure key sharing across applications without exposing the full private key.
This implementation ensures that users can easily and securely use their Capsule wallet across multiple applications while maintaining strong security and privacy controls.
Benefits
For Users
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- Access the same wallet across multiple applications without complex key exports
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- No need to manage multiple wallets or perform
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- Consistent user experience across different platforms
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- Permissions for transparent security and granular access confrol
For Developers
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- Easier onboarding of users who already have a Capsule wallet
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- Access to richer transaction history from shared wallets
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- Easily craft multi-app experiences and build an ecosystem
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- request specific permissions based on the application’s needs.
Wallet Portability vs. Traditional Approaches
To understand the advantages of Capsule’s wallet portability, let’s compare it with traditional approaches:
| Feature | Third-Party Wallets | Traditional Embedded Wallets | Capsule Portable Wallets |
|---|---|---|---|
| Portable across apps | ✔️ | ✔️ | |
| Smooth in-app UX | ✔️ | ✔️ | |
| Integrated with app functionality | ✔️ | ✔️ | |
| No browser extensions required | ✔️ | ✔️ | |
| Granular permissions per app | ✔️ | ||
| No manual key management for users | ✔️ |
This comparison highlights how Capsule Portable Wallets combine the best features of both third-party and traditional embedded wallets, while also offering unique advantages such as granular permissions and simplified key management.
Security Features
Granular Permissions
Each application can be granted specific permissions, limiting potential damage if one app is compromised.
Encrypted Key Sharing
The User Share is encrypted specifically for each application, preventing unauthorized access.
Signature Verification
Each key sharing process includes a signature verification step to ensure authenticity.
No Full Key Exposure
Thanks to MPC, the full private key is never exposed to any single application or stored in one place.
How Wallet Portability Works
Initial Wallet Creation
When a user creates a Capsule wallet in one application, it’s associated with their identity (e.g., email).
Accessing New Applications
When the user wants to use their wallet in a new application:
- They log in with their Capsule credentials
- The new application requests specific permissions
- Upon approval, the application gains access to the user’s wallet
Behind the Scenes
Capsule securely shares the necessary key information with the new application, without exposing the full private key.
Ongoing Usage
The user can now seamlessly use their wallet across all connected applications, with each app respecting its granted permissions.
Example Use Cases
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DeFi Dashboard: An app that aggregates data from multiple DeFi protocols could request read-only permissions across various chains.
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NFT Marketplace: Could request permissions specifically for NFT-related transactions on relevant chains.
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Cross-Chain DEX: Might request permissions for swap transactions across multiple chains.
Preview: Upcoming Enhancements
Capsule is continuously working on enhancing wallet portability. Future developments may include:
- More granular permission controls
- Enhanced analytics and insights for users across their entire wallet usage
- More seamless cross-chain experiences
By providing true wallet portability, Capsule aims to make the crypto experience more user-friendly and secure, paving the way for broader adoption and more innovative multi-app ecosystems.
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