Threshold ECDSA and Autonomous Multi-Chain Interoperability
Connecting disparate blockchain ecosystems typically relies on centralized bridges, custodians, or multi-signature federations, which remain the single largest source of hacks in Web3 history.
ICPay harnesses the Internet Computer native Chain-Key Cryptography to eliminate bridge vulnerabilities.
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Core Technical Architecture & Mechanisms
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1. Protocol-Level Secret Sharing
Master private keys are partitioned into polynomial shares distributed across dozens of independent node machines using threshold cryptography.
2. Native Outbound Signatures
The canister requests threshold signatures directly from the subnet to sign transactions for Bitcoin and other networks without exposing key material.
3. Fault Tolerant Key Resharing
Keys are periodically reshared across dynamic node sets, ensuring key secrecy even if individual nodes join or leave the network.