Web3 Integration

Web3 Integration

Native Web3 support with signing sandbox protection.

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Wallet Architecture

Multi-network wallet manager:

Supported Networks

• Ethereum mainnet

• EVM-compatible chains (BSC, Polygon, Arbitrum, Optimism, Avalanche)

• Layer 2 solutions

• Testnets (Goerli, Sepolia, Mumbai, etc.)

Key Management

• Local keystore (encrypted)

• Hardware wallet integration (Ledger, Trezor)

• Profile-scoped wallets

• Watch-only wallet support

Seed Phrase Security

• Zero-knowledge vault storage

• Hardware-backed encryption (when available)

• Never transmitted externally

• Profile isolation

Signing Sandbox

Transaction interception and analysis:

Interception Layer

Catches all wallet interactions:

• eth_sign

• personal_sign

• eth_signTypedData

• eth_sendTransaction

• Contract interactions

Translation Engine

Converts hex to plain English:

Input: 0x095ea7b3000000000000000000000000...

Output: "Approve Uniswap Router to spend unlimited DAI from your wallet"

Policy Engine

Checks transactions against rules:

• Per-dApp spending limits

• Contract whitelist/blacklist

• Function call restrictions

• Token approval limits

• Maximum gas price

Risk Assessment

Assigns risk scores:

• Low - Standard swap on known DEX

• Medium - New contract interaction

• High - Unlimited token approval

• Critical - Signature requests with broad permissions

dApp Permissions

Granular permission system:

Connection Management

• Per-dApp wallet connection permissions

• Network restrictions per dApp

• Auto-reject unknown dApps

• One-click revoke

Permission Scoping

Example for Uniswap:

• Can request signatures: Yes

• Can access: 0xYourAddress

• Networks allowed: Ethereum mainnet

• Max approval: 1 ETH equivalent

• Approved functions: Swap only

• Unlimited approvals: Blocked

Audit Trail

• Log all dApp interactions

• Transaction history per dApp

• Permission change tracking

• Export audit logs

Privacy Mixer

On-chain privacy protocol:

Architecture

• Zero-knowledge proof system

• Deposit and withdrawal anonymity sets

• Configurable mixing delays

• Multi-hop mixing support

Supported Assets

• Native tokens (ETH, BNB, MATIC)

• ERC-20 tokens

• Cross-chain bridge integration

Privacy Guarantees

• Break sender-receiver link

• Untraceable withdrawals

• Anonymity set size visualization

• No address correlation

Private Swaps

MEV-resistant trading:

Implementation

• Order flow encryption

• Private transaction pool submission

• Flashbots integration

• Direct block builder communication

Benefits

• No front-running

• No sandwich attacks

• Better execution prices

• Transaction privacy

Test Sandbox

Safe testing environment:

Testnet Support

• Full feature parity on testnets

• Automatic testnet faucet integration

• Switch networks without wallet reset

• Parallel mainnet/testnet profiles

Safety Features

• Obvious visual indicators (testnet = orange UI)

• Confirmation required to switch to mainnet

• Prevent accidental mainnet transactions during testing

RPC Management

Custom RPC endpoints:

Built-in RPCs

• Primary and fallback RPCs per network

• Load balancing across endpoints

• Automatic failover

Custom RPCs

• Add private RPC endpoints

• Configure per profile

• Latency monitoring

• Health checks

Contract Interaction

Safe contract calls:

ABI Decoding

• Automatic ABI detection for verified contracts

• Function signature database

• Parameter decoding

• Return value parsing

Contract Verification

• Check Etherscan verification status

• Display contract source (if verified)

• Warning for unverified contracts

• Community reputation scores

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Native Web3 with undrainable protection.

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