Imports github.com/btcsuite/btcd/btcec github.com/tendermint/tendermint/crypto github.com/tendermint/tendermint/crypto/secp256k1 github.com/tendermint/tendermint/libs/log github.com/tendermint/tendermint/types Standard library imports crypto crypto/ecdsa crypto/elliptic crypto/rand encoding/hex errors math/big