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Seal Officially Launches on the Sui Testnet
Mysten Labs' latest product Seal is a decentralized cryptographic management service that provides asymmetric encryption security, suitable for integration into various scenarios and applications. Seal combines on-chain access policies with off-chain services for key generation and decryption, enabling content encryption while ensuring authorized users can access the encrypted content.
Seal has launched on the Sui testnet for developers to familiarize themselves with the system and explore integration with their own applications.
Despite the substantial amount of data on-chain that requires security protection, existing solutions are often specific to certain scenarios (such as wallet services) or rely on Web2 (like AWS KMS and GCP Cloud KMS). Seal provides developers with a more universal, secure, scalable, and high-performance solution, suitable for data access control for almost any storage location.
Seal Architecture Components
The Seal architecture uses off-chain backend services to generate identity-based decryption keys and provides corresponding public keys for encryption. Applications can choose t-out-of-n backend services as part of the threshold encryption mechanism. Users interact with the backend services using the Seal SDK, decrypting content on the client side with their identity key.
The Seal client works in conjunction with the on-chain Seal policy, where policies are defined and managed in the Move language on Sui, used to establish access structures. These on-chain policies can be configured with various rules to suit various use cases.
Use Cases
Builders developing with Seal can integrate its flexible security architecture into their applications in various ways. Here are some examples demonstrating how Seal can protect sensitive data securely and scalably:
· Protecting personal data on Walrus or other storage infrastructure to ensure only the uploader can access it.
· Using time-locked encryption to transfer ownership of NFTs or other assets to another user within a specific time window.
· Storing encrypted content on Walrus or other storage infrastructure and controlling access for specific users through a whitelist.
· Publish premium content in a content subscription app, allowing access only to verified subscription users.
· Develop a chat application that supports end-to-end encrypted private messaging based on Sui and Walrus.
Developers interested in exploring real-world applications can check out this marketplace app (code) that showcases access control features based on whitelisting and subscription mechanisms using Sui, Walrus, and Seal.
Built for Security
The initial testnet release of Seal focuses on providing an end-to-end user experience for developers and users. This release is not only available for comprehensive testing of Seal's core features but also aims to gather community feedback to ensure that Seal's operations truly serve user needs.
This feedback will also determine the future development direction of Seal, with several features already identified to further enhance its usability. Potential future developments for Seal include:
· Multi-Party Computation (MPC): Allowing a multi-party computation committee to use a t-out-of-n distributed key to operate Seal's backend services.
· Server-Side Encryption: As an alternative to client-side encryption, allowing Seal's backend to perform data decryption, enabling developers to build lighter front ends.
· Digital Rights Management (DRM): Performing decryption in a secure trusted client environment to enable DRM functionality, similar to mainstream platforms like Netflix, YouTube, and HBO.
Developers interested in Seal can refer to the official documentation to start exploring its SDK and deploy applications based on the testnet.
Disclaimer: This content is for general educational and informational purposes only and should not be interpreted or relied upon as an endorsement or recommendation to buy, sell, or hold any asset, investment, or financial product, and does not constitute financial, legal, or tax advice.
This article is contributed content and does not represent the views of BlockBeats.
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The privacy-focused crypto wallet Mixin announced today the launch of its U-based perpetual contract (a derivative priced in USDT). Unlike traditional exchanges, Mixin has taken a new approach by "liberating" derivative trading from isolated matching engines and embedding it into the instant messaging environment.
Users can directly open positions within the app with leverage of up to 200x, while sharing positions, discussing strategies, and copy trading within private communities. Trading, social interaction, and asset management are integrated into the same interface.
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Mixin has directly integrated social features into the derivative trading environment. Users can create private trading communities and interact around real-time positions:
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By combining social interaction with trade execution, Mixin enables users to collaborate, share, and execute trading strategies instantly within the same environment.
Mixin has also introduced a referral incentive system based on trading behavior:
· Users can join with an invite code
· Up to 60% of trading fees as referral rewards
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This model aims to drive user-driven network expansion and organic growth.
Mixin's derivative transactions are built on top of its existing self-custody wallet infrastructure, with core features including:
· Separation of transaction account and asset storage
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Against the background of perpetual contracts becoming a mainstream trading tool, Mixin is exploring a different development direction by lowering barriers, enhancing social and privacy attributes.
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Mixin is a decentralized, self-custodial privacy wallet designed to provide secure and efficient digital asset management services.
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· Aggregation: integrating multi-chain assets and routing between different transaction paths to simplify user operations
· High liquidity access: connecting to various liquidity sources, including decentralized protocols and external markets
· Decentralization: achieving full user control over assets without relying on custodial intermediaries
· Privacy protection: safeguarding assets and data through MPC, CryptoNote, and end-to-end encrypted communication
Mixin has been in operation for over 8 years, supporting over 40 blockchains and more than 10,000 assets, with a global user base exceeding 10 million and an on-chain self-custodied asset scale of over $1 billion.
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Mixin has launched USTD-margined perpetual contracts, bringing derivative trading into the chat scene.
The privacy-focused crypto wallet Mixin announced today the launch of its U-based perpetual contract (a derivative priced in USDT). Unlike traditional exchanges, Mixin has taken a new approach by "liberating" derivative trading from isolated matching engines and embedding it into the instant messaging environment.
Users can directly open positions within the app with leverage of up to 200x, while sharing positions, discussing strategies, and copy trading within private communities. Trading, social interaction, and asset management are integrated into the same interface.
Based on its non-custodial architecture, Mixin has eliminated friction from the traditional onboarding process, allowing users to participate in perpetual contract trading without identity verification.
The trading process has been streamlined into five steps:
· Choose the trading asset
· Select long or short
· Input position size and leverage
· Confirm order details
· Confirm and open the position
The interface provides real-time visualization of price, position, and profit and loss (PnL), allowing users to complete trades without switching between multiple modules.
Mixin has directly integrated social features into the derivative trading environment. Users can create private trading communities and interact around real-time positions:
· End-to-end encrypted private groups supporting up to 1024 members
· End-to-end encrypted voice communication
· One-click position sharing
· One-click trade copying
On the execution side, Mixin aggregates liquidity from multiple sources and accesses decentralized protocol and external market liquidity through a unified trading interface.
By combining social interaction with trade execution, Mixin enables users to collaborate, share, and execute trading strategies instantly within the same environment.
Mixin has also introduced a referral incentive system based on trading behavior:
· Users can join with an invite code
· Up to 60% of trading fees as referral rewards
· Incentive mechanism designed for long-term, sustainable earnings
This model aims to drive user-driven network expansion and organic growth.
Mixin's derivative transactions are built on top of its existing self-custody wallet infrastructure, with core features including:
· Separation of transaction account and asset storage
· User full control over assets
· Platform does not custody user funds
· Built-in privacy mechanisms to reduce data exposure
The system aims to strike a balance between transaction efficiency, asset security, and privacy protection.
Against the background of perpetual contracts becoming a mainstream trading tool, Mixin is exploring a different development direction by lowering barriers, enhancing social and privacy attributes.
The platform does not only view transactions as execution actions but positions them as a networked activity: transactions have social attributes, strategies can be shared, and relationships between individuals also become part of the financial system.
Mixin's design is based on a user-initiated, user-controlled model. The platform neither custodies assets nor executes transactions on behalf of users.
This model aligns with a statement issued by the U.S. Securities and Exchange Commission (SEC) on April 13, 2026, titled "Staff Statement on Whether Partial User Interface Used in Preparing Cryptocurrency Securities Transactions May Require Broker-Dealer Registration."
The statement indicates that, under the premise where transactions are entirely initiated and controlled by users, non-custodial service providers that offer neutral interfaces may not need to register as broker-dealers or exchanges.
Mixin is a decentralized, self-custodial privacy wallet designed to provide secure and efficient digital asset management services.
Its core capabilities include:
· Aggregation: integrating multi-chain assets and routing between different transaction paths to simplify user operations
· High liquidity access: connecting to various liquidity sources, including decentralized protocols and external markets
· Decentralization: achieving full user control over assets without relying on custodial intermediaries
· Privacy protection: safeguarding assets and data through MPC, CryptoNote, and end-to-end encrypted communication
Mixin has been in operation for over 8 years, supporting over 40 blockchains and more than 10,000 assets, with a global user base exceeding 10 million and an on-chain self-custodied asset scale of over $1 billion.
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