$SOL is proposing to phase out offline signing, potentially ushering in a redesign of cold-wallet signing architectures. The Solana Foundation’s deprecation plan, published in October, proposes retiring durable nonces (a mechanism that allows transactions to be signed offline and broadcast later) in favor of on-chain signature verification programs. The cold private key would still authorize approvals, but program-derived addresses (PDAs) would actually control the relevant accounts, while a separate online operator would submit transactions and pay network fees. This means exchanges, custodians, and treasury operators will need to migrate assets or permissions, and applications will also need to adapt to the new program-initiated signing flow. Notably, the Foundation has not yet set a removal date or made a final choice between the two candidate solutions: Anza’s Programmatic Signer and Blueshift’s Vector. Durable nonces remain available for normal use for now.

#Solana #Web3

(Source: CryptoSlate)

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