A nearby protocol has upgraded the chain signature framework by adding support for EDDSA (Edwards-Curve Digital Signature Algorithm).
Solana, Ton, Sui, aptos, stellar…
You were chosen to be abstracted.
The latest upgrade to Cerow Chain Signature adds support for EDDSA signatures, allowing you to control the chains that take advantage of that standard directly from nearby accounts. pic.twitter.com/m7mglwweub
– April 30, 2025, a nearby protocol (@nearprotocol)
The update, announced on April 30th, allows users and smart contracts to manage their assets and interact with networks such as Solana, Toncoin, SUI, Aptos, Stellar and more.
EDDSA integration built on the ED25519 curve
The core of this release is support for EDDSA signatures based on the ED25519 encryption curve. Known for its speed and resistance to side-channel attacks, EDDSA is widely used across modern blockchain networks, allowing efficient signature verification, including support for batch processing.
Through this upgrade, Near's smart contracts and accounts can now generate EDDSA-compliant signatures that are recognized by external chains.
Interoperability across the top chain has become easier
The new EDDSA implementation is a major step towards blockchain interoperability. With this release, nearby accounts can directly initiate transactions in EDDSA support chains such as Solana (Sol), Toncoin (Ton), Aptos (Apt), SUI (SUI), Stellar (XLM).
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Users no longer need to resort to custody bridges, manage multiple wallets, or juggle different cryptographic schemes to access assets on different blockchains. Instead, single-near accounts can now be used to sign and execute transactions natively on external networks.
Streamlined developer experience for multi-chain dap
Beyond the benefits of users, this update also strengthens the developer stack. EDDSA is integrated, allowing front-end and back-end developers to build multi-chain applications without the need for custom encryption code per chain.
Developers working on DAPP for Defi, games, or token management can leverage Near's new encryption layer to launch interoperable applications that interact with assets across the network without the need for unique integration across all chains.
Real-world use cases for cross-chain defi and swap
Integration opens new use cases to developers of multiple networks. For example, the Solana-based Defi platform enables cross-chain lending products that interact with nearby accounts, allowing users to stake SOL while borrowing nearby. Similarly, developers can build decentralized exchanges near total liquidity from chains such as SUI, Aptos, Solana, and more, which could lead to increased access to multi-chain swap capabilities.
The Omnibridge implementation can also be extended to include an EDDSA-based chain without requiring unique changes to each supported protocol. Additionally, the new architecture allows smart contracts to create transaction flows across different blockchain environments using a common interface.
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