golang-github-tendermint-ed25519-dev 0.0~git20160723.0.1f52c6f-1 (armhf binary) in ubuntu bionic

 Ed25519 is a public-key signature system for fast
 single-signature signing and verification.
 .
 This package is used by Tendermint Core.
 .
 Tendermint Core is Byzantine Fault Tolerant (BFT) middleware
 that takes a state transition machine, written in any programming
 language, and replicates it on many machines.