technology
ARPA Network is a new system architecture of threshold signature scheme (TSS). With an innovative protocol design and multiple unique mechanisms, ARPA Network adapts the threshold BLS scheme for blockchain.
Asynchronous Communication
We chose the Boneh-Lynn-Shacham (BLS) signature
scheme as the underlying cryptographic primitive. In the BLS scheme, the
signatures are aggregatable, making the communication between nodes in ARPA
Network asynchronous. With this mechanism, ARPA Network will be faster than
other infrastructures using the ECDSA scheme, which needs multiple rounds of
synchronized communication.
Grouping Mechanism for Higher Throughput
The nodes in ARPA Network are split into multiple
groups to handle BLS signature tasks simultaneously. Smart contracts are
deployed to manage group info and assign tasks. This parallel design can
significantly increase the network’s throughput.
Blockchain Agnostic
ARPA Network baked multi-chain support into the
technical structure design, aiding developers in multiple ecosystems.