[execution flow]
01
fund()Fund
convert ERC-20 to encrypted balance.
02
transfer()Transfer
send hidden amounts. ~0.005¢ per transfer.
03
withdraw()Withdraw
convert back to standard ERC-20.
[comparison matrix]ElGamal encryption.
ElGamal encryption.
Verified on-chain.
Tongo
FHE/TEE solutions
Setup
No trusted ceremony
Trusted setup / TEEs
Verification
~120K Cairo steps
External coprocessors
Privacy
client-side proving (t < 1s)
Delegated encryption
Compliance
Auditor keys + selective disclosure
Vendor-dependent
[use cases]
Payroll
Private salary payments
Compliance
Auditable private transfers
DeFi
Hidden trade amounts
Treasury
Confidential DAO spending
[built for simplicity]
No new wallets. No new tokens.
Tongo works with the ERC-20s you already use.
Standard wallets
Existing ERC-20s
Zero setup