ARPA is a Secure Computation Network Compatible With Blockchains They propose a blockchain-based secure computation network of Multi-party Computation (MPC). ARPA cryptographically enables private smart contract, unprecedented data-at-use privacy protection, as well as scalable computational sharding.
BidiKey is a new digital identity authentication platform that is secure, accessible and inexpensive to implement and use. It is applicable to authenticate people and it uses the smartphone as a personal security token. The cryptography that Bidipass applies solves all the problems associated to the authentication of people, identity theft, digital theft and validation of operations as it is a highly secure environment that has the same legal validity as a digital signature.