AMIS implemented a hierarchical variant of threshold signatures, using different levels/ranks in its distributed key generation (DKG) and signing logic, based on a previous research paper.
Binance created an open source software library available on Github implementing a threshold ECDSA signature scheme (TSS), and hired Kudelski Security to perform a security
CashShuffle is a plugin for the ElectronCash Bitcoin wallet software. CashShuffle implements a superset of the CoinShuffle protocol, whose aim is to anonymize cryptocurrency ownership
IOHK is an engineering company that builds cryptocurrencies and blockchains for academic institutions, government entities, and corporations. Major projects of IOHK are Ethereum Classic, the Daedalus wallet, and the Cardano platform.
Tangem provides “smart banknotes for digital assets”, as smart card storage media for Bitcoin private keys with basic wallet functionality. Tangem hired Kudelski Security to perform
People often contact me to ask about “the blockchain”—where the definite article ‘the‘ tells a lot about their experience with c̶r̶y̶p̶t̶o̶ blockchains. My answer will