TokenBridge
TokenBridge
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Smart Contracts
Welcome
About TokenBridge
Features, Definitions and Modes
Components
Use Cases
Security Audits
Roadmap
Arbitrary Message Bridge (AMB)
About the AMB
Arbitrary Message Bridge Deployment
How to develop a cross-blockchain application using the AMB
ERC677 to ERC677 AMB bridge extension
Gas Token Minting
Demo: CryptoKitties AMB bridge extension
Create a Burner Wallet plugin for your AMB bridge extension
xDai Bridge
About the xDai Bridge
Using the xDai Bridge
xDai Bridge Contracts Management
xDai Bridge oracle maintenance
ETH-XDAI AMB BRIDGE
About the ETH-xDai AMB
Multi-token extension
ERC20-to-ERC20 extension linked with a particular token
ETH-BNC Bridge
About ETH-BNC bridge
Demo: ETH-BNC bridge
Creating a Local Binance DEX Testnet
ETH-POA AMB BRIDGE
About the ETH-POA AMB
Kovan-Sokol AMB Bridge
About the Kovan-Sokol AMB
Native-to-ERC20 bridge extension
RINKEBY-XDAI AMB BRIDGE
About the Rinkeby-xDai AMB
AMB Live Monitoring application
MOON bridge extension
BRICK bridge extension
ETH-ETC AMB BRIDGE
About the ETH-ETC AMB
WETC AMB extension
ETH-QDAI Bridge
About the qDai chain
About the ETH-qDai AMB
qDai bridge extension
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About ETH-BNC bridge

Experimental bridge to relay ERC20 tokens from an EVM-based chain to the Binance chain

The TokenBridge solution allows digital asset transfer between two Ethereum Virtual Machine (EVM) based chains. Bridge operations are served by the TokenBridge oracles (Validators) - nodes that listen to user's relay requests. A user sends funds to a specific (bridge) account in one chain and formulates the relay request. Then, each validator node votes to approve the requested relay operation using a multisig wallet. As soon as enough votes are collected, the relay request is finalized and the corresponding asset amount is unlocked.

The Binance Chain does not support multisig wallets. However, the same voting functionality described above can be implemented with a Threshold Signature Scheme (TSS). A TSS uses Multiparty Computation to generate a digital signature of a message in a trustless manner, using a subset of validators.

The ETH-to-BNC bridge combines the TokenBridge approach with a TSS to approve relay operations and facilitate asset transfer between an EVM chain and the Binance chain.

The contracts and oracles are available on this GitHub repo.

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Demo: ETH-BNC bridge
Last updated 9 months ago
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