SOLANA <> INCOGNITO BRIDGE

Bridge program to bring privacy to Solana ecosystem.

PROGRAM GUIDE

Prerequisites

• Rust (link)
• Solana client tool (link)

Build program:

cargo build-bpf 

Deploy program:

solna program deploy $PROGRAM_PATH

Features

• Shield / UnShield between Solana and Incognito chain
• Provide privacy for dapp on solana

Clients

• Golang
• Typescript

INSTRUCTIONS

Init incognito proxy instruction

///   Initializes a new Incognito proxy account.
///
///   0. `[]` $SYSVAR_RENT_PUBKEY to check account rent exempt
///   1. `[writable]` Incognito proxy account
///   2. `[writable]` Vault account
InitBeacon {
    /// beacon info
    init_beacon_info: IncognitoProxy,
}

Shield instruction

///   Request new shield to move token from Solana -> Incognito.
///
///   0. `[writable]` Token account to make shield request
///   1. `[writable]` Vault token account to receive token from asker
///   2. `[]` Incognito proxy which stores beacon list and bump seed to retrieve vault token account
///   3. `[signer]` Shield maker address
///   4. `[]` Spl Token program id
Shield {
    /// amount to shield
    amount: u64,
    /// destination in privacy layer
    inc_address: [u8; 148],
}

Unshield instruction

///   Request new unshield to move token from Incognito -> Solana.
///
///   0. `[writable]` Vault token account to transfer tokens to unshield maker
///   1. `[]` Unshield maker address
///   2. `[]` $vault_authority derived from `create_program_address(&[incognito proxy account])`
///   3. `[writable]` pda account to mark burn id already used
///   4. `[]` Incognito proxy which stores beacon list and bump seed to retrieve vault token account
///   5. `[]` Spl Token program id
///   6. `[writable]` Associated token account of unshield maker
///   7. `[signer]` Fee payer for pda account which stores tx id
///   8. `[]` System program to create pda account
UnShield {
    /// unshield info
    unshield_info: UnshieldRequest,
}

Dapp interaction instruction

/// Generic instruction to allow vault interact with any dapp on Solana.
///
/// 0. `[signer]` Signer account
/// ...
DappInteraction {
    /// beacon info
    dapp_request: DappRequest,
}

Withdraw request instruction

///   Withdraw token from signer token account to shield back to Incognito.
///
///   0. `[writable]` Signer token account to withdraw
///   1. `[writable]` Vault token account to receive token from signer
///   2. `[]` Incognito proxy which stores beacon list and bump seed to retrieve vault token account
///   3. `[signer]` signer request address
///   4. `[]` $signer_authority derived from `create_program_address(&[signer account])`
///   5. `[]` Spl Token program id
WithdrawRequest {
    /// withdraw request
    amount: u64,
    inc_address: [u8; 148],
}