TOS Wallet Features

Traditional Wallet: Balance: 1,234.56 TOS (publicly visible)
TOS Wallet:        Balance: ██████ TOS (encrypted, private)

pub struct EncryptedBalance {
    pub commitment: Commitment,     // Pedersen commitment to balance
    pub proof: RangeProof,         // Proof balance is non-negative
    pub encryption: ElGamalCipher, // Encrypted balance value
}
 
impl EncryptedBalance {
    pub fn new(amount: u64, viewing_key: &ViewingKey) -> Self {
        let commitment = pedersen_commit(amount, generate_blinding_factor());
        let proof = create_range_proof(amount, &commitment);
        let encryption = elgamal_encrypt(amount, &viewing_key.public_key());
 
        EncryptedBalance {
            commitment,
            proof,
            encryption,
        }
    }
}

// Traditional blockchain transaction (public)
{
  "from": "address123...",
  "to": "address456...",
  "amount": "100.0 TOS",  // Everyone can see this
  "fee": "0.001 TOS",
  "timestamp": "2024-01-15T10:30:00Z"
}
 
// TOS private transaction (encrypted)
{
  "from": "tos1abc123...",
  "to": "tos1def456...",
  "amount_commitment": "0x8f7a2b1c9d...",  // Encrypted amount
  "proof": "0x4e6f8a2d3c...",              // Zero-knowledge proof
  "fee_commitment": "0x1a3b5c7e9f...",     // Encrypted fee
  "timestamp": "2024-01-15T10:30:00Z"
}

pub struct StandardWallet {
    pub master_key: MasterKey,
    pub viewing_key: ViewingKey,
    pub spending_key: SpendingKey,
    pub proof_key: ProofKey,
    pub address_generator: AddressGenerator,
}
 
impl StandardWallet {
    pub fn new_transaction(&self, to: &Address, amount: u64) -> PrivateTransaction {
        // Generate new one-time address
        let one_time_address = self.address_generator.generate();
 
        // Create encrypted amount commitment
        let amount_commitment = self.create_commitment(amount);
 
        // Generate zero-knowledge proof
        let proof = self.create_proof(amount, &amount_commitment);
 
        PrivateTransaction {
            to: to.clone(),
            amount_commitment,
            proof,
            one_time_address,
        }
    }
}

pub struct MultiSigWallet {
    pub threshold: u8,           // Minimum signatures required
    pub total_signers: u8,       // Total number of signers
    pub public_keys: Vec<PublicKey>,
    pub partial_signatures: Vec<PartialSignature>,
}
 
impl MultiSigWallet {
    pub fn create_transaction(&self, to: &Address, amount: u64) -> PendingTransaction {
        let tx = self.prepare_transaction(to, amount);
 
        PendingTransaction {
            transaction: tx,
            required_signatures: self.threshold,
            collected_signatures: 0,
            status: TransactionStatus::WaitingForSignatures,
        }
    }
 
    pub fn add_signature(&mut self, signature: Signature, signer_index: u8) -> Result<(), Error> {
        // Verify signature is from authorized signer
        if !self.verify_signer(signature, signer_index) {
            return Err(Error::InvalidSigner);
        }
 
        self.partial_signatures.push(PartialSignature {
            signature,
            signer_index,
        });
 
        Ok(())
    }
}

pub struct WatchingWallet {
    pub viewing_key: ViewingKey,
    pub addresses: Vec<Address>,
    pub can_spend: bool, // Always false
}
 
impl WatchingWallet {
    pub fn new(viewing_key: ViewingKey) -> Self {
        WatchingWallet {
            viewing_key,
            addresses: Vec::new(),
            can_spend: false,
        }
    }
 
    pub fn get_balance(&self) -> EncryptedBalance {
        // Can decrypt and view balance using viewing key
        self.decrypt_balance_with_viewing_key()
    }
 
    pub fn view_transaction_history(&self) -> Vec<Transaction> {
        // Can view incoming/outgoing transactions
        self.decrypt_transaction_history()
    }
}

// Energy staking interface
class EnergyManager {
    async stakeForEnergy(amount, duration) {
        const stakingTx = {
            type: 'energy_stake',
            amount: amount,           // TOS tokens to stake
            duration: duration,       // Staking period in days
            energy_rate: this.calculateEnergyRate(amount, duration)
        };
 
        return await this.wallet.submitTransaction(stakingTx);
    }
 
    calculateEnergyRate(amount, days) {
        // Energy generation formula
        const baseRate = 0.5;  // Base energy per TOS per day
        const durationBonus = Math.min(days / 365, 0.5); // Up to 50% bonus for longer stakes
        return amount * baseRate * (1 + durationBonus);
    }
 
    async getEnergyBalance() {
        return {
            available: await this.wallet.getAvailableEnergy(),
            generating: await this.wallet.getGeneratingEnergy(),
            staked_amount: await this.wallet.getStakedAmount(),
            daily_generation: await this.wallet.getDailyEnergyGeneration()
        };
    }
}

// Transaction with gas fees (traditional)
const gasTx = {
    to: 'tos1recipient...',
    amount: '100.0',
    fee: '0.001 TOS',        // Paid in TOS tokens
    fee_type: 'gas'
};
 
// Transaction with energy (gas-free)
const energyTx = {
    to: 'tos1recipient...',
    amount: '100.0',
    energy_cost: 15,         // Consumed from energy balance
    fee_type: 'energy'
};

Staking Benefits:
├── 1,000 TOS staked for 30 days
├── Generates: ~15 energy units per day
├── Energy value: ~0.001 TOS per unit
├── Daily savings: ~0.015 TOS
├── Monthly savings: ~0.45 TOS
└── Annual return: ~5.4 TOS (0.54% of stake)

Plus: Gas price protection during network congestion

// Example Java smart contract interaction from wallet
public class WalletContractInterface {
    public void callContract(String contractAddress, String method, Object[] params) {
        // Prepare contract call
        ContractCall call = new ContractCall(contractAddress, method, params);
 
        // Estimate energy/gas costs
        CostEstimate estimate = estimateCallCost(call);
 
        // User chooses payment method
        PaymentMethod payment = userSelectsPaymentMethod(estimate);
 
        // Execute with privacy protection
        PrivateContractExecution execution = new PrivateContractExecution(call, payment);
        wallet.executeContract(execution);
    }
 
    private CostEstimate estimateCallCost(ContractCall call) {
        return new CostEstimate(
            gasEstimate: calculateGasCost(call),
            energyEstimate: calculateEnergyCost(call),
            privateDataSize: calculatePrivateDataOverhead(call)
        );
    }
}

pub struct PrivateContractCall {
    pub contract_address: Address,
    pub encrypted_input: EncryptedData,
    pub proof_of_valid_input: ZKProof,
    pub energy_payment: Option<EnergyPayment>,
    pub gas_payment: Option<GasPayment>,
}
 
impl PrivateContractCall {
    pub fn new(
        contract: &Address,
        input_data: &[u8],
        viewing_key: &ViewingKey
    ) -> Self {
        let encrypted_input = encrypt_contract_input(input_data, viewing_key);
        let proof = generate_input_validity_proof(input_data);
 
        PrivateContractCall {
            contract_address: contract.clone(),
            encrypted_input,
            proof_of_valid_input: proof,
            energy_payment: None,
            gas_payment: None,
        }
    }
}

class HardwareWalletManager {
    async connectHardwareWallet(walletType) {
        const supportedWallets = ['ledger', 'trezor', 'keepkey'];
 
        if (!supportedWallets.includes(walletType)) {
            throw new Error('Unsupported hardware wallet');
        }
 
        const hwWallet = await this.initializeHardwareWallet(walletType);
 
        return {
            isConnected: true,
            deviceInfo: await hwWallet.getDeviceInfo(),
            supportedFeatures: {
                privateTransactions: true,
                energyStaking: true,
                smartContracts: true,
                multiSig: true
            }
        };
    }
 
    async signTransaction(transaction, hardwareWallet) {
        // Display transaction details on hardware wallet screen
        await hardwareWallet.displayTransaction(transaction);
 
        // Wait for user confirmation
        const userConfirmed = await hardwareWallet.waitForConfirmation();
 
        if (userConfirmed) {
            return await hardwareWallet.signPrivateTransaction(transaction);
        }
 
        throw new Error('Transaction cancelled by user');
    }
}

class BiometricAuth {
    async enableBiometricAuth() {
        const biometricTypes = await this.getAvailableBiometrics();
 
        return {
            fingerprint: biometricTypes.includes('fingerprint'),
            faceId: biometricTypes.includes('face'),
            voice: biometricTypes.includes('voice'),
            retina: biometricTypes.includes('retina')
        };
    }
 
    async authenticateTransaction(transaction) {
        const authResult = await this.requestBiometricAuth();
 
        if (authResult.success) {
            // Add biometric signature to transaction
            transaction.biometricSignature = authResult.signature;
            transaction.authTimestamp = Date.now();
            return transaction;
        }
 
        throw new Error('Biometric authentication failed');
    }
}

pub struct TimeLockWallet {
    pub time_locks: Vec<TimeLock>,
    pub spending_limits: SpendingLimits,
    pub emergency_recovery: EmergencyRecovery,
}
 
pub struct TimeLock {
    pub amount: u64,
    pub unlock_time: Timestamp,
    pub recipient: Option<Address>, // If set, automatically sends when unlocked
}
 
pub struct SpendingLimits {
    pub daily_limit: u64,
    pub weekly_limit: u64,
    pub monthly_limit: u64,
    pub per_transaction_limit: u64,
}
 
impl TimeLockWallet {
    pub fn create_time_locked_transaction(
        &self,
        amount: u64,
        unlock_time: Timestamp,
        recipient: Option<Address>
    ) -> TimeLock {
        TimeLock {
            amount,
            unlock_time,
            recipient,
        }
    }
 
    pub fn check_spending_limits(&self, amount: u64) -> Result<(), SpendingError> {
        let current_spending = self.get_current_period_spending();
 
        if amount > self.spending_limits.per_transaction_limit {
            return Err(SpendingError::ExceedsTransactionLimit);
        }
 
        if current_spending.daily + amount > self.spending_limits.daily_limit {
            return Err(SpendingError::ExceedsDailyLimit);
        }
 
        Ok(())
    }
}

pub struct ConfidentialAsset {
    pub asset_id: AssetId,
    pub name: String,
    pub symbol: String,
    pub encrypted_supply: EncryptedAmount,
    pub privacy_level: PrivacyLevel,
}
 
pub enum PrivacyLevel {
    Complete,      // Amounts and balances encrypted
    Partial,       // Amounts visible, balances encrypted
    Transparent,   // Traditional blockchain visibility
}
 
impl ConfidentialAsset {
    pub fn wrap_existing_token(token_address: &str, privacy_level: PrivacyLevel) -> Self {
        ConfidentialAsset {
            asset_id: generate_asset_id(token_address),
            name: format!("Private {}", get_token_name(token_address)),
            symbol: format!("p{}", get_token_symbol(token_address)),
            encrypted_supply: encrypt_total_supply(token_address),
            privacy_level,
        }
    }
}

class CrossChainBridge {
    async bridgeToTOS(sourceChain, asset, amount) {
        const bridgeRequest = {
            sourceChain: sourceChain,        // 'ethereum', 'bitcoin', etc.
            sourceAsset: asset,              // Original asset address
            amount: amount,
            destinationAddress: this.wallet.getReceivingAddress(),
            privacyLevel: 'complete'         // Convert to confidential asset
        };
 
        // Lock assets on source chain
        const lockTx = await this.lockAssetsOnSource(bridgeRequest);
 
        // Mint confidential assets on TOS
        const mintTx = await this.mintConfidentialAssets(bridgeRequest, lockTx);
 
        return {
            sourceTx: lockTx,
            destinationTx: mintTx,
            bridgeTime: Date.now(),
            confidentialAssetId: mintTx.assetId
        };
    }
 
    async bridgeFromTOS(asset, amount, destinationChain, destinationAddress) {
        // Burn confidential assets on TOS
        const burnTx = await this.burnConfidentialAssets(asset, amount);
 
        // Unlock original assets on destination chain
        const unlockTx = await this.unlockAssetsOnDestination(
            burnTx,
            destinationChain,
            destinationAddress
        );
 
        return {
            burnTx: burnTx,
            unlockTx: unlockTx,
            bridgeTime: Date.now()
        };
    }
}

// iOS Swift implementation example
class TOSMobileWallet {
    func enableBackgroundSync() {
        // Efficiently sync blockchain data in background
        BackgroundTaskManager.shared.register { [weak self] in
            self?.performIncrementalSync()
        }
    }
 
    func optimizeForBattery() {
        // Reduce computational overhead for mobile devices
        CryptoEngine.shared.setMobileOptimizations(enabled: true)
        NetworkManager.shared.setBandwidthLimit(.mobile)
    }
 
    func enableQuickAuth() {
        // Fast authentication for frequent transactions
        BiometricAuth.shared.enableQuickAccess(
            timeout: 300, // 5 minutes
            maxAmount: 100 // Small transaction limit without re-auth
        )
    }
}

class OfflineTransactionManager {
    async createOfflineTransaction(to, amount) {
        // Create transaction without network connection
        const offlineTx = {
            to: to,
            amount: amount,
            nonce: this.getLocalNonce(),
            timestamp: Date.now(),
            signature: null,
            status: 'unsigned'
        };
 
        // Store for later signing and broadcast
        await this.storeOfflineTransaction(offlineTx);
 
        return offlineTx;
    }
 
    async signOfflineTransactions() {
        const pendingTxs = await this.getPendingOfflineTransactions();
 
        for (const tx of pendingTxs) {
            // Sign transaction offline
            tx.signature = await this.wallet.signTransaction(tx);
            tx.status = 'signed';
        }
 
        return pendingTxs;
    }
 
    async broadcastWhenOnline() {
        if (this.isOnline()) {
            const signedTxs = await this.getSignedTransactions();
 
            for (const tx of signedTxs) {
                await this.network.broadcast(tx);
                tx.status = 'broadcasted';
            }
        }
    }
}

import { TOSWallet, PrivacyLevel } from '@tos-network/wallet-sdk';
 
class ApplicationWalletIntegration {
    async initializeWallet() {
        this.wallet = new TOSWallet({
            network: 'mainnet',
            privacyLevel: PrivacyLevel.MAXIMUM,
            energyManagement: true,
            smartContractSupport: true
        });
 
        await this.wallet.connect();
    }
 
    async requestPayment(amount, description) {
        return await this.wallet.requestTransaction({
            amount: amount,
            description: description,
            privacyLevel: PrivacyLevel.COMPLETE,
            paymentMethod: 'auto', // Automatically choose gas or energy
            confirmationRequired: true
        });
    }
 
    async getWalletInfo() {
        return {
            address: await this.wallet.getReceivingAddress(),
            balance: await this.wallet.getEncryptedBalance(),
            energyBalance: await this.wallet.getEnergyBalance(),
            supportedFeatures: this.wallet.getSupportedFeatures()
        };
    }
}

// TOS Web3 provider with privacy features
const tosProvider = new TOSWeb3Provider({
    privacy: {
        balances: 'encrypted',
        transactions: 'confidential',
        contracts: 'private_calls'
    }
});
 
// Standard Web3 interface with privacy
const web3 = new Web3(tosProvider);
 
// Send private transaction
await web3.eth.sendTransaction({
    from: userAddress,
    to: recipientAddress,
    value: web3.utils.toWei('1', 'ether'),
    privacy: 'complete',        // TOS extension
    energyPayment: true         // TOS extension
});

pub struct TransactionBatch {
    pub transactions: Vec<PrivateTransaction>,
    pub batch_proof: BatchZKProof,
    pub total_energy_cost: u64,
    pub total_gas_cost: u64,
}
 
impl TransactionBatch {
    pub fn new(transactions: Vec<PrivateTransaction>) -> Self {
        let batch_proof = generate_batch_proof(&transactions);
        let total_energy = transactions.iter().map(|tx| tx.energy_cost).sum();
        let total_gas = transactions.iter().map(|tx| tx.gas_cost).sum();
 
        TransactionBatch {
            transactions,
            batch_proof,
            total_energy_cost: total_energy,
            total_gas_cost: total_gas,
        }
    }
 
    pub fn optimization_savings(&self) -> OptimizationReport {
        let individual_cost = self.calculate_individual_costs();
        let batch_cost = self.calculate_batch_cost();
 
        OptimizationReport {
            individual_total: individual_cost,
            batch_total: batch_cost,
            savings: individual_cost - batch_cost,
            efficiency_gain: ((individual_cost - batch_cost) as f64 / individual_cost as f64) * 100.0
        }
    }
}

class WalletDataManager {
    constructor() {
        this.cache = new LRUCache({
            max: 10000,
            ttl: 1000 * 60 * 15 // 15 minutes
        });
 
        this.storage = new EncryptedStorage({
            encryption: 'AES-256-GCM',
            compression: true
        });
    }
 
    async cacheTransaction(txHash, transaction) {
        // Cache in memory for quick access
        this.cache.set(txHash, transaction);
 
        // Store encrypted on disk for persistence
        await this.storage.set(`tx_${txHash}`, transaction);
    }
 
    async getTransaction(txHash) {
        // Try cache first
        let tx = this.cache.get(txHash);
 
        if (!tx) {
            // Fallback to disk storage
            tx = await this.storage.get(`tx_${txHash}`);
 
            if (tx) {
                // Re-cache for future access
                this.cache.set(txHash, tx);
            }
        }
 
        return tx;
    }
}

# Wallet sync issues
Problem: Wallet not syncing with network
Solution:
1. Check network connectivity
2. Verify node endpoints
3. Clear sync cache if necessary
4. Restart wallet application
 
# Commands for troubleshooting
tos-wallet diagnose --network-test
tos-wallet reset-sync --confirm
tos-wallet update-endpoints

// Balance encryption/decryption problems
class BalanceTroubleshooter {
    async diagnoseTotalBalance() {
        try {
            const balance = await this.wallet.decryptBalance();
            return { status: 'success', balance: balance };
        } catch (error) {
            return {
                status: 'error',
                error: error.message,
                suggestions: [
                    'Verify viewing key is correct',
                    'Check wallet synchronization status',
                    'Try refreshing wallet connection'
                ]
            };
        }
    }
 
    async validateEncryption() {
        const testAmount = 100;
        const encrypted = await this.wallet.encryptAmount(testAmount);
        const decrypted = await this.wallet.decryptAmount(encrypted);
 
        return {
            encryptionWorking: decrypted === testAmount,
            testPassed: true
        };
    }
}