Features Supported By Silent Shard

• Asynchronous Signature

  • One shot signature wherever rest parties come online.

• Key Refresh

• Asynchronous Key Generation

  • During DKG or key refresh, if there is more than one human approver, one or more parties might be offline, unavailable to approve key generation. Current DKG algorithms are very interactive and chatty. We have optimised DKG to support offline parties.

    • 3 Algorithms for 2/3 Quorum

    • 2 for t >3

• Converting EOA/Private Key to MPC Wallet

  • Private Key is locally split using general or hierarchical secret sharing

  • Shards are shared between MPC nodes

  • A fresh instance of key refresh is initiated

• Changing Quorum Structures

  • Adding a new node

  • Modifying thresholding

    • {2, 2} > {2, 3}

    • {2, 3} > {t, n}