Non-interactive ECC Compatible Threshold Signature Scheme

[C0deMunk33]

The MultisigControl scheme that has been implemented works well and keeps the control of locked funds out of the hands of any single party. The downside is that at-present it costs approximately $0.01 per signature submitted to the smart contract. This also is not readily applicable to other blockchains (such as BTC). A proper TSS brings that down to $0.01 total as only a single signature is needed to be recovered.

As @Vegaklaus pointed out, interactive TSS is weak to a denial of service attack where one party simply drops out during the signature process, requiring a restart. This can be avoided in a non-interactive version, but everything found thus far is not easily recoverable on Ethereum and wouldn't work with BTC.

Requirements:

• non-interactive
• ECC/ECDSA compatible result signature