Primus Confidential Finance — New User Guide | Notion

What Primus Confidential Finance Offers

Feature	Description
Shield / Unshield	Shield your United Stables ($U) into the encrypted version ($eU), an FHE-encrypted representation of your stablecoin, fully backed 1:1. And you can unshield your $eU back to $U anytime.
Send	Send your encrypted money $eU to any wallet on BNB Chain without exposing the transaction details.
Stake / Redeem	Stake your idle $eU into the Confidential Vault to earn yield, without exposing your position size, activity, or strategy to public view. The redeem operation to retrieve $eU from the vault is also privacy-preserving.

Before You Start

Keep a small amount of BNB for gas, plus $U to start.
If you arrive via an invite link, you may be asked to sign once to bind your wallet.
On the landing page, click Connect Wallet and approve the connection in your wallet.
After connecting, you can Shield, Unshield, Send, and Earn with confidential tokens.

Start to Shield

Shield your United Stables ($U) into the encrypted version ($eU), an FHE-encrypted representation of your stablecoin, fully backed 1:1.

Use Shield to convert $U into $eU and start exploring confidential finance.
Open the Shield tab and enter the amount you want to shield.
Approve the transaction in your wallet. Once confirmed, your eU balance appears under Portfolio → Tokens list → Confidential balance.

Tips

New eU balances may show as encrypted placeholders until you Decrypt in Portfolio. You need to sign a permit in your wallet to decrypt and view the confidential amount.
You can Unshield your $eU back to $U anytime from the Unshield tab.

Earn from Confidential Vault

Stake $eU into the Confidential Vault to earn existing DeFi yield. Same strategies, full position privacy.

Go to the Earn tab and select the eU vault (United Stables Confidential Vault).
Click the card to open the vault, then go to the Stake panel.
Enter the amount, review the terms and withdrawal notice, then click Stake and confirm in your wallet.