just before shipping the first Signal integration today. CONGRATS to Joshua Goldbard and his amazing tech team... real artists!

<a href="https://www.wired.com/story/signal-mobilecoin-payments-messaging-cryptocurrency/" rel="noreferrer nofollow">WIRED</a>: "Signal has integrated support for the cryptocurrency MobileCoin, a form of digital cash designed to work efficiently on mobile devices while protecting users' privacy and even their anonymity. Marlinspike says Signal chose to integrate MobileCoin because it has the most seamless user experience on mobile devices, requiring little storage space on the phone and needing only seconds for transactions to be confirmed. Zcash or Monero payments, by contrast, take minutes to complete transactions. "You're using a cryptocurrency with state-of-the-art encryption, but from your perspective, it feels like Venmo," says MobileCoin's founder Josh Goldbard.

The mechanics of how MobileCoin works to ensure its transactions' privacy and anonymity are—even for the world of cryptocurrency—practically a Rube Goldberg machine in their complexity. Like Monero, MobileCoin uses a protocol called CryptoNote and a technique it integrates known as Ring Confidential Transactions to mix up users' transactions, which makes tracing them vastly far more difficult and also hides the amount of transactions. But like Zcash, it also uses a technique called zero-knowledge proofs—specifically a form of those mathematical proofs known as Bulletproofs—that can guarantee a transaction has occurred without revealing its value.

On top of all those techniques, MobileCoin takes advantage of the SGX feature of Intel processors, which is designed to allow a server to run code that even the server's operator can't alter. MobileCoin uses that feature to ensure that servers in its network are deleting all lingering information about the transactions they carry out after the fact and leave only a kind of cryptographic receipt that proves the transaction occurred.”