Came across Google Cloud: it rolled out a Multi-Party Compute (MPC) custodial key-signing service at a digital assets symposium in New York—aimed specifically at banks and institutions. It splits cryptographic private keys into multiple parts, stored in different environments.
Key details: Banks can keep one share on local hardware, another in Google Cloud, and a third with a different cloud provider; no single party holds the complete private key. Before signing, a policy engine also checks the request (limits, whitelisted addresses, multi-party approvals, and so on). It’s currently in private preview, with commercial availability targeted for early 2027; several major financial institutions are already testing it. Alphabet itself uses the system to protect its digital assets on Ethereum and Solana. ECDSA (BTC/ETH) is supported; Ed25519/Solana documentation is marked “coming soon,” with support planned for commercial launch.
Big tech is now selling institutional key custody as serious infrastructure—compared with “one party holding the entire private key,” it feels like a very different bar to clear.
#托管 #MPC #GoogleCloud #Institutional
Key details: Banks can keep one share on local hardware, another in Google Cloud, and a third with a different cloud provider; no single party holds the complete private key. Before signing, a policy engine also checks the request (limits, whitelisted addresses, multi-party approvals, and so on). It’s currently in private preview, with commercial availability targeted for early 2027; several major financial institutions are already testing it. Alphabet itself uses the system to protect its digital assets on Ethereum and Solana. ECDSA (BTC/ETH) is supported; Ed25519/Solana documentation is marked “coming soon,” with support planned for commercial launch.
Big tech is now selling institutional key custody as serious infrastructure—compared with “one party holding the entire private key,” it feels like a very different bar to clear.
#托管 #MPC #GoogleCloud #Institutional
