The sender of a message cannot be spoofed. This address format is superior to email in that it guarantees that a message from a particular user or organization did, in fact, come from them. Users have already demonstrated this to be acceptable as Bitcoin addresses are similar in format and length. While certainly more cumbersome than an email address, it is not too much to type manually or it can be made into a QR‐code. Encoded with base58 and prepended with recognizable characters (like BM for Bitmessage), an example address would be: BM‐2nTX1KchxgnmHvy9ntCN9r7sgKTraxczzyE. The data exchanged by the user can also include a version number for forwards capability, a stream number (the purpose of which will be discussed later), and a checksum. If the public key can be obtained by the underlying protocol, then it can easily be hashed to verify that it belongs to the intended recipient. The authentication mechanism is a system where users exchange a hash of a public key that also functions as the user’s address. It uses strong authentication which means that the sender of a message cannot be spoofed, and it aims to hide "non-content" data, like the sender and receiver of messages, from passive eavesdroppers like those running warrantless wiretapping programs. It is decentralized and trustless, meaning that you need-not inherently trust any entities like root certificate authorities. Bitseal is a lightweight Bitmessage client for Android, currently in beta development.īitmessage is a P2P communications protocol used to send encrypted messages to another person or to many subscribers. Bitseal is a lightweight Bitmessage client for Android.
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