# Architecture ### **Scope and Goals** * **Unique Stack:** Hybrid (custody + non-custody), multi-chain, crypto-fiat, multi-platform wallet with custom accessibility/privacy regulation. * **Supported Cryptocurrencies and Networks:** [Ethereum](https://wiki.walletium.net/assets-management/ethereum), [Bitcoin](https://wiki.walletium.net/knowledge-base/glossary#bitcoin), [Tron](https://wiki.walletium.net/knowledge-base/glossary#tron), [BNB](https://wiki.walletium.net/knowledge-base/glossary#binance), [stablecoins](https://wiki.walletium.net/knowledge-base/glossary#stablecoin), and an internal token called [**TEX** ](https://wiki.walletium.net/assets-management/tex-token-and-daemon)for fee payments. * **Target Audience:** Telegram users and people connected to the crypto world. * **User Experience Goals:** User-friendly design, security, ease of use, unique tools, and cost-saving on fees. *** ### **Security First** * **Key Management:** * Wallet keys are stored on a separate server in encrypted form. * Users can add their own keys or store them independently. * The company does not have access to users' keys. * **Secure Communication Channels:** * The [**Daemon Engine**](https://wiki.walletium.net/assets-management/tex-token-and-daemon) is a central pillar of the project. * It serves as a full-fledged [API](https://wiki.walletium.net/walletium-api/walletium-api) for managing and working with various blockchains, including [Ethereum](https://wiki.walletium.net/assets-management/ethereum), [Bitcoin](https://wiki.walletium.net/knowledge-base/glossary#bitcoin), [BNB](https://wiki.walletium.net/knowledge-base/glossary#binance), and [Tron](https://wiki.walletium.net/knowledge-base/glossary#tron). * New blockchain networks and their tokens will be added in the future, enhancing the platform's capabilities. * **User Authentication:** * 2-Factor Authentication (2FA) for added security. * End-to-end encryption to protect user data and communications. * Cloud-based encryption for additional security layers. *** ### **Core Components** * **Wallet Engine Features:** * **Envelopes:** A new method for transferring funds, allowing users to send "[envelopes](https://wiki.walletium.net/walletium-object/envelopes)" with their assets. * **Virtual Cards:** Capability to create [virtual cards](https://wiki.walletium.net/assets-management/virtual-cards) for transactions. * **Address Management:** Ability to add public addresses, groups of addresses, or address + key for fund movement and transaction signing. * **Cross-Blockchain Swapping:** [Swap](https://wiki.walletium.net/basic-interface-layer/deposit-send-and-swap) functionality between different blockchains. * **Funds Management:** Deposit and withdrawal capabilities. * **Media Center:** A section where users can access news and updates related to the crypto world. * **Personal Payments:** Personal payments via direct links. * **Payment Receivers:** Creation of payment receivers for channels, other bots, and platforms. * **Staking:** Ability to stake assets. * **Proportional Storage:** Funds storage in proportions instead of specific currencies. * **Watch-Only Wallets:** * **Address Management:** Users can import or add addresses to the watch-only wallet. * **Transaction History:** The wallet displays a complete transaction history for the watched addresses. * **Balance Information:** Real-time balance updates are provided for all watched addresses. * **No Sending or Receiving:** Users cannot send or receive funds from a watch-only wallet. * **Blockchain Interaction:** * **Daemon Engine:** An [API ](https://wiki.walletium.net/walletium-api/walletium-api)for managing and interacting with various blockchains, including [Ethereum](https://wiki.walletium.net/assets-management/ethereum), [Bitcoin](https://wiki.walletium.net/knowledge-base/glossary#bitcoin), [BNB](https://wiki.walletium.net/knowledge-base/glossary#binance), [Tron](https://wiki.walletium.net/knowledge-base/glossary#tron), and future networks. * **Batching Transactions:** Grouping multiple transactions into a single batch to reduce blockchain interactions. * **Caching Blockchain Data:** Caching frequently accessed blockchain data to minimize direct queries. * **Storage Mechanisms:** * **Private Keys:** Stored in encrypted form on third-party servers. * **Transaction Signing:** Transactions are signed via the [API](https://wiki.walletium.net/walletium-api/walletium-api). * **Transaction History & Personal Data:** Managed and accessed through the [API](https://wiki.walletium.net/walletium-api/walletium-api). * **User Interface Design:** * **Platform:** The wallet is designed as a [**Telegram Mini App**](https://t.me/walletiumbot)**,** leveraging [Telegram](https://wiki.walletium.net/general-information/telegram-basics/why-telegram) as the platform. * **Privacy:** The mini app does not leave digital traces on the user's or provider's side. * **Accessibility:** Push [notifications ](https://wiki.walletium.net/control-panel/push-history)for easy access and security control. * **Media Center:** A compact [media center](https://wiki.walletium.net/control-panel/media-center) within the wallet keeps users updated with news. * **Community:** A live [community ](https://t.me/teleteleteleb)on [Telegram](https://wiki.walletium.net/general-information/telegram-basics/why-telegram) for industry discussion, mutual assistance, and insights. * **Knowledge Base:** Access to a comprehensive crypto [knowledge base](https://wiki.walletium.net/knowledge-base). * **Ease of Use:** From registration to [deposit](https://wiki.walletium.net/walletium-object/address-types/deposit) and first withdrawal, the wallet aims to be the simplest and most user-friendly crypto wallet in the world. *** ### **Scalability and Performance** * **Performance Expectations:** * **Web API + Business Solutions:** Provide external P2P connections and business solutions. * **Direct Payments:** Support for personal payments via direct links. * **Proportional Asset Management:** Ability to store funds in proportions rather than specific currencies. * **Horizontal Scaling:** * **Adding More Servers:** As the load increases, additional servers can be added to distribute the workload. * **Load Balancers:** Distribute incoming traffic across multiple servers for efficient processing. * **Microservices Architecture:** Application is broken down into smaller, independent services, each scalable based on its resource requirements. * **Content Delivery Networks (CDNs):** * **Offloading Static Content:** Use CDNs to distribute static content like images, stylesheets, and JavaScript files, reducing the load on the origin server. * **DDoS Protection:** Implement measures such as rate limiting and use a CDN with DDoS protection to mitigate attacks. *** ### **Data Management** * **Data Minimization:** * Collect only essential data for wallet functionality. * Avoid storing unnecessary personal information. * **Secure Storage:** * Encrypt user data at rest with strong algorithms (e.g., AES-256). * Consider using hardware security modules (HSMs) for extra protection of sensitive data like private keys. * **Data Encryption in Transit:** * Encrypt all communication channels between user devices and wallet servers using TLS/SSL. * **Regular Security Audits:** * Conduct regular penetration testing and security audits to identify and address vulnerabilities. * **User Education:** * Educate users on best practices for data protection, such as using strong passwords and enabling 2FA. * **Compliance with Regulations:** * Adhere to relevant data privacy regulations (e.g., GDPR, CCPA) for responsible data handling. * **Backup Methods:** * **Mnemonic Phrase:** A list of randomly generated words representing private keys; users should securely store this phrase in a physical location. * **Seed Phrase:** Used similarly to a mnemonic phrase for wallet restoration. * **Private Key Export:** Users can export private keys as files, although this method is less secure. * **Wallet File Export:** Exporting the entire wallet, including private keys and transaction history. * **Cloud Backup:** Offering cloud backup options where wallet data is encrypted and stored on remote servers. * **Restoration Methods:** * **Using Mnemonic or Seed Phrase:** Allows users to restore their wallet on a new device. * **Importing Wallet File:** Wallets can be imported using exported wallet files. * **Restoring from Cloud Backup:** Users can download and restore their wallet from the cloud backup. * **Recovery Procedures:** * **Regular Backups:** Ensure frequent [backups](https://wiki.walletium.net/security-and-privacy/backup-and-recovery) of wallet data, including private keys, transaction history, and other relevant information. * **Multiple Backup Locations:** Store [backups](https://wiki.walletium.net/security-and-privacy/backup-and-recovery) in multiple locations (e.g., physical, cloud) to prevent data loss due to a single point of failure. * **Backup Verification:** Regularly verify the integrity of [backups](https://wiki.walletium.net/security-and-privacy/backup-and-recovery) to ensure they can be restored successfully. *** ### **Integration with Other Systems** * **External Services and APIs:** This information will be updated soon. * **Security Considerations for Integration:** * **Risk Assessment and Vendor Due Diligence:** * Conduct a comprehensive security assessment of the third-party service provider. * Investigate the provider's reputation, history of data breaches, and compliance with security standards. * Review the provider's data privacy and security policies to understand how your data will be handled. * Assess the provider's incident response plan to determine how they handle security breaches. * **Data Security:** * Share only the necessary data with the third-party service (Data Minimization). * Ensure data is encrypted both at rest and in transit. * Implement strict access controls to limit who can access shared data. * Conduct regular security audits to identify and address vulnerabilities. * **Authentication and Authorization:** * Use robust authentication methods like multi-factor authentication (MFA) to protect access to the third-party service. * Implement Role-Based Access Control (RBAC) to grant appropriate permissions based on user roles. * Securely manage API keys and other credentials used to access the third-party service. * **Security Testing:** * Conduct regular vulnerability assessments to identify potential weaknesses in the integration. * Perform penetration testing to uncover vulnerabilities and assess the system's resilience. * Regularly conduct security audits to evaluate the overall security posture. * **Incident Response:** * Develop a comprehensive incident response plan to address security breaches effectively. * Conduct regular incident response simulations to ensure preparedness. * Establish clear communication channels for reporting and responding to incidents. * **Contractual Obligations:** * Ensure a clear Data Processing Agreement (DPA) outlines data sharing, processing, and security responsibilities. * Define service levels in the Service Level Agreement (SLA), including security requirements and penalties for breaches. * Plan for the termination of the relationship, including data retrieval and security measures. * **Continuous Monitoring:** * Implement systems to detect unusual activity or data breaches (Anomaly Detection). * Regularly analyze logs for suspicious patterns or security incidents. * Keep the third-party service and your systems up-to-date with the latest security patches. *** ### **Architecture Diagrams** * **Data Flow Diagrams:** * Data flow diagrams will be used to illustrate the system architecture, showing how data moves through the system and how components interact. *** ### **Development Methodology** * **Prioritization:** * Features will be prioritized based on their value to the user and the overall project goals. * **User-Centric Approach:** * A strong focus on user experience and feedback will drive development decisions. * **Version Control System:** * **Git:** The preferred choice for version control, offering distributed nature, speed, and powerful branching capabilities ideal for managing code changes efficiently. * **Testing Strategy:** * **Unit Testing:** To verify individual components for correctness. * **Integration Testing:** To ensure that different components work together as expected. * **Security Testing:** To identify and mitigate security vulnerabilities. * **Performance Testing:** To assess the system's performance under various conditions. * **Usability Testing:** To evaluate the user interface and overall user experience. *** ### **Additional Features** * **HD Wallets:** * **Key Generation:** HD wallets will generate public and private key pairs deterministically from the master seed, ensuring consistency and reproducibility. * **Address Generation:** The wallet will generate multiple addresses for each account, providing better privacy and security. * **Multi-Signature Wallets:** * **Status:** Coming soon. * **Hardware Wallet Integration:** * **Status:** No integration planned. * **Watch-Only Wallets:** * **Functionality:** * **Address Management:** Users can import or add addresses to the watch-only wallet. * **Transaction History:** The wallet displays a complete transaction history for the watched addresses. * **Balance Information:** Real-time balance updates are provided for all watched addresses. * **No Sending or Receiving:** Users cannot send or receive funds from a watch-only wallet. * **Use Cases:** * **Monitoring Funds:** Investors or traders can track the movement of funds without controlling the assets. * **Portfolio Management:** Users can monitor their cryptocurrency holdings across multiple wallets or exchanges. * **Cold Storage Verification:** Watch-only wallets can be used to verify the balance of cold storage wallets without exposing private keys. * **Auditing:** Businesses or organizations can use watch-only wallets to audit their cryptocurrency transactions. *** ### **Documentation and Maintenance** * **Scheduled Updates** * Regular reviews and updates will be conducted to ensure the document reflects the current state of the architecture. Now let's take a look at the [Walletium Deep Paper](https://wiki.walletium.net/general-information/deep-paper) ➡️ ***
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