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Function Signature

Description

Exports a key offline using key shares without requiring server communication. This function reconstructs the key from the provided key shares locally for the specified chain.

Parameters

Required Parameters

  • chainName (string) - The name of the blockchain chain (e.g., ‘base-sepolia’)
  • keyShares (any[]) - Array of key shares to reconstruct the key

Optional Parameters

  • derivationPath (string) - BIP-44 derivation path (defaults to “m/44’/60’/0’/0/0”)

Returns

  • Promise<string> - The exported key as a hex string

Example

Key Share Format

Error Handling

Security Considerations

  • Offline Operation: This function works without server communication
  • Key Share Security: Ensure key shares are kept secure
  • Local Processing: Key reconstruction happens locally
  • Derivation Path: Use appropriate derivation path for your use case
Last modified on January 26, 2026