🛡️Social Recovery Wallet

Overview

The Social Recovery Wallet feature in Tychi offers users a secure, decentralized mechanism to recover access to their wallets through trusted contacts—without exposing private keys or compromising control.

Technical Design

Tychi leverages Shamir’s Secret Sharing algorithm to split a user's private key into multiple encrypted parts. These are distributed across pre-selected guardians, such as friends, family, or personal devices. To initiate a recovery, a threshold number of guardians must verify and approve the request.

Key Components

• Guardian-Based Recovery Users designate trusted contacts as guardians who each hold a unique, encrypted fragment of their private key.

• Multi-Factor Verification Guardians must authenticate themselves via biometric, password, or OTP before approving recovery.

• Threshold-Based Access Only when a predefined number of guardians confirm, the system reconstructs the private key securely.

• Encrypted Fragment Handling Guardians cannot view or use the fragments independently—fragments are encrypted at rest and only recombined on authorized recovery.

Recovery Flow

1. User Initiation: A recovery request is submitted via the Tychi Wallet.

2. Guardian Authentication: Each selected guardian is prompted to verify and approve the request.

3. Threshold Confirmation: Once the required number of guardians confirm, encrypted parts are decrypted and reassembled.

4. Key Restoration: The user regains access with the rebuilt private key.

Security Features

• End-to-End Encryption: Ensures all private key fragments remain secure in storage and transit.

• Time-Locked Recovery: Recovery attempts are time-bound and permission-based.

• Audit Logging: All actions are logged for user visibility and compliance.

• Dynamic Guardian List: Users can add, remove, or reassign guardians at any time.

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