FROST

The research unit of Bitcoin (BTC)-focused blockchain tech firm Blockstream has published a proposal for a new type of multisig standard called Robust Asynchronous Schnorr Threshold Signatures (ROAST). It hopes to avoid the problem of transaction failures due to absent or even malicious signers and can work at scale. The term multisig or multisignature, refers to a method of transaction in which two or more signatures are required to sign off before it can be executed. The standard is widely adopted in crypto. According to a May 25 blog post from Blockstream research, the basic idea of ROAST is to make transactions between the Bitcoin network and Blockstream’s sidechain Liquid more efficient, automated, secure and private. In particular, ROAST has been posited as a signature standard that ...