Typhon Wallet - Secure Multi-Signature Support

[Proposal setup] Proposal title

Please provide your proposal title

Typhon Wallet - Secure Multi-Signature Support

[Proposal Summary] Budget Information

Enter the amount of funding you are requesting in ADA

250000

[Proposal Summary] Time

Please specify how many months you expect your project to last

9

[Proposal Summary] Translation Information

Please indicate if your proposal has been auto-translated

No

Original Language

en

[Proposal Summary] Problem Statement

What is the problem you want to solve?

Typhon lacks multi-signature support, limiting secure collaboration in managing ADA, tokens, and staking among organizations and teams.

[Proposal Summary] Supporting Documentation

Supporting links

• https://typhonwallet.io

[Proposal Summary] Project Dependencies

Does your project have any dependencies on other organizations, technical or otherwise?

No

Describe any dependencies or write 'No dependencies'

No Dependencies

[Proposal Summary] Project Open Source

Will your project's outputs be fully open source?

No

License and Additional Information

NO

[Theme Selection] Theme

Please choose the most relevant theme and tag related to the outcomes of your proposal

Developer Tools

[Campaign Category] Category Questions

Describe your established collaborations.

This project will be carried out entirely by Strica, the team that develops and maintains Typhon Wallet. As the proposal extends functionality within our own product, there are no external collaborators involved.

Keeping the work in-house ensures aligned vision, technical consistency, and clear accountability. Progress and milestones will be shared publicly through our usual channels to maintain transparency with the Cardano community.

Describe funding commitments.

Strica will fully design, implement, and maintain native multi-sig support in Typhon Wallet, integrating UI workflows and backend logic to support wallet creation, and signing. We commit to milestone-based delivery, releasing updates progressively with community testing and documentation. Our track record with Typhon, Cardanoscan, and Ledger Live integration shows our commitment to long-term maintenance and quality.

Describe your key performance metrics.

• Multi-sig wallets created and actively used via Typhon
• Community feedback received, addressed, and support requests resolved
• Clear tutorials and documentation provided for smooth adoption
• Key milestones achieved on time with transparent evidence of progress

[Your Project and Solution] Solution

Please describe your proposed solution and how it addresses the problem

1. Overview: We propose to extend Typhon Wallet with a comprehensive native multi-signature solution built on Cardano native scripts, CIP-1854 key derivation, and seamless transaction discovery. This will enable secure, efficient, and standardized shared control of ADA, tokens, and staking.
2. Key Enhancements
   1. CIP-1854-Compliant Multi-Sig Key Generation
      1. Implement multi-sig key derivation according to CIP-1854 for compatibility across wallets and tooling.
      2. Standardized derivation paths ensure long-term portability and interoperability.
      3. Support hardware wallets (Ledger, Trezor) and Mnemonic Wallets.
   2. Native Script Policy Builder
      1. Intuitive interface for creating policies (M-of-N threshold, timelocks).
      2. Display script hash, policy ID, readable JSON representation.
      3. Support import/export of policy script for collaborative setups.
   3. Seamless Pending Transaction Discovery
      1. Automatic** scanning **for unsigned or partially signed multi-sig transactions associated with a wallet’s address.
      2. Transactions appear in with clear signer status indicators.
      3. Avoids reliance on manual file sharing or third-party platforms.
      4. Secure fetching of transaction without compromising private keys.
   4. Transaction Signing & Submission
      1. Users can sign ADA and token transfers directly in Typhon.
      2. Support for partial signing with incremental storage of signatures until threshold met.
      3. Final signer triggers submission to the blockchain.
   5. Staking via Multi-Sig
      1. Stake pool delegation, deregistration, and reward withdrawal with signer consensus.
      2. View staking status, history, and rewards.
   6. Governance Support
      1. DRep delegation through multi-sig wallets.
3. Technical Highlights
   1. Native Scripts for deterministic, low-cost execution.
   2. CIP-1854 key derivation for standardization.
   3. Secure local key handling, compatible with hardware wallets.
   4. Automatic transaction discovery to reduce friction in coordination.

[Your Project and Solution] Impact

Please define the positive impact your project will have on the wider Cardano community

1. Unlocking Secure Shared Control: Organizations, DAOs, and teams will have a ready-to-use, non-custodial multi-sig wallet with full wallet and staking capabilities.
2. Interoperability & Standards: CIP-1854 support means wallets and tools in the ecosystem can interoperate, avoiding vendor lock-in and ensuring long-term portability.
3. **Frictionless Coordination: **Seamless transaction discovery eliminates common bottlenecks in multi-sig workflows, making collaboration as simple as single-sig operations.
4. **Governance Participation: **Shared wallets for voting lower the barrier for group participation, increasing on-chain governance engagement.
5. **Strategic Alignment: **By championing native scripts over smart contracts for multi-sig, this project showcases Cardano’s unique strengths in deterministic, lightweight transaction logic.

[Your Project and Solution] Capabilities & Feasibility

What is your capability to deliver your project with high levels of trust and accountability? How do you intend to validate if your approach is feasible?

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[Milestones] Project Milestones

Milestone Title

Create & Import Wallet using Native Script

Milestone Outputs

Implementation of wallet creation and import using native scripts, along with a sync balance feature that enables address generation and receiving of ADA and native tokens, ensuring reliable wallet usage.

Acceptance Criteria

Users can create and import wallets through native scripts, generate addresses, and receive ADA or tokens. Balance synchronization works correctly, ensuring accurate real-time wallet status and tracking.

Evidence of Completion

Demo video showing the wallet creation and import interfaces with receive address and Balance feature working

Delivery Month

2

Cost

75000

Progress

30 %

Milestone Title

Allow Signing Simple Transactions

Milestone Outputs

Transaction signing implemented to send ADA and tokens to addresses. Users can initiate sends, sign using wallet, and pending requests appear in Typhon multi-signature section for confirmation.

Acceptance Criteria

Users can sign and initiate a transaction flow successfully. Pending requests for signatures are displayed in Typhon multi-signature section, ensuring accurate tracking, validation, and smooth signing workflow.

Evidence of Completion

Demo video showing complete transaction signing, validation, and successful submission flow.

Delivery Month

2

Cost

50000

Progress

50 %

Milestone Title

Allow Staking

Milestone Outputs

Implementation of staking functionalities, including support for the below types of staking transactions using the multi-signature wallet (stake delegation, withdraw rewards, and stake deregistration).

Acceptance Criteria

Users can seamlessly delegate ADA to pools, withdraw rewards, and deregister stake accounts via the multi-sig wallet, with accurate validation, smooth flow, and reliable execution of all staking features.

Evidence of Completion

Video demo showcasing staking interfaces , including delegation , rewards , and deregistration.

Delivery Month

2

Cost

50000

Progress

70 %

Milestone Title

Vote Delegation Feature

Milestone Outputs

• Implementation of the vote delegation feature allowing users to delegate stake to a selected DRep, or alternatively choose the default voting preferences such as “Abstain” or “No Confidence” in wallet.

Acceptance Criteria

• Users can successfully delegate to a DRep using the multi-sig wallet interface, with clear confirmation of delegation shown, ensuring the vote delegation functionality works as intended for all users.

Evidence of Completion

Video demo showcasing the DRep delegation process and default vote option selection in the wallet.

Delivery Month

2

Cost

37500

Progress

90 %

Milestone Title

Allow Registering to Vote

Milestone Outputs

Deployment of all implemented features across Typhon Wallet extension and web version, ensuring full functionality. Publish a comprehensive close-out report and final demo video for public verification.

Acceptance Criteria

All implemented features are fully live, operational, and accessible in both the Typhon Wallet extension and web versions, allowing users to verify functionality end-to-end across all supported use cases.

Evidence of Completion

• The new version of the wallet extension released
• Final closeout report and closeout video available on a publicly accessible URL

Delivery Month

1

Cost

37500

Progress

100 %

[Final Pitch] Budget & Costs

Please provide a cost breakdown of the proposed work and resources

• Wallet Creation & Import with Native Scripts
  • Work:
    • Implement wallet creation and import functionality using native scripts.
    • Add balance sync with address generation and receiving ADA/tokens.
  • Verification: Demo video showing wallet creation, import, address generation, and balance sync working.
  • Cost: 75,000 ADA - 2 months.
• Transaction Signing
  • Work:
    • Implement transaction signing for sending ADA and tokens.
    • Integrate pending transaction requests into Typhon Wallet multi-sig signing section.
  • Verification: Demo video demonstrating the transaction signing flow.
  • Cost: 50,000 ADA - 2 months.
• Staking Features
  • Work:
    • Enable staking functionality in multi-sig wallets: stake delegation, reward withdrawal, and stake key deregistration.
  • Verification: Demo video showing staking, reward withdrawals, and deregistration transactions.
  • Cost: 50,000 ADA - 2 months.
• Vote Delegation
  • Work:
    • Implement vote delegation to DReps from within the multi-sig wallet.
    • Support default vote options: Abstain and No Confidence.
  • Verification: Demo video of vote delegation feature.
  • Cost: 37,500 ADA - 2 months.
• Final Deployment & Closure
  • Work:
    • Deploy all new features in Typhon Wallet extension and web version.
    • Publish close-out report and demo video.
  • Verification: Public release of updated wallet extension, close-out report, and demo video available via public link.
  • Cost: 37,500 ADA - 1 month.

[Final Pitch] Value for Money

How does the cost of the project represent value for the Cardano ecosystem?

The budget for this project reflects the value it delivers across security, usability, and ecosystem empowerment.

Key Justifications:

1. Security Features at No Extra Cost: Multi-sig is essential for secure fund management. Our solution will be free and, directly improve self-custody for individuals, DAOs, and projects on Cardano.
2. Long-Term Value: The project is not a one-off integration. The feature will be maintained long-term as part of Typhon Wallet.
3. Cost-Efficient Use of Native Scripts: Unlike smart contract-based multi-sig, Cardano native scripts have no on-chain logic cost beyond standard transaction fees.
4. No Vendor Lock-In: Users and developers can export/import their native script wallets and use them with any compatible tool. This adds to Cardano's permissionless and open ethos.
5. Low Maintenance Cost, High Reliability: Native scripts are deterministic. This lowers long-term risk, reduces bug surface area.
6. Community Support & Ecosystem Alignment: Strica has a long-standing reputation of maintaining Cardano Projects. Funding this project means supporting experienced builders who consistently deliver.

[Required Acknowledgements] Consent & Confirmation

Terms and Conditions:

Yes