Imports github.com/btcsuite/btclog github.com/litecoinfinance/btcd/btcec github.com/aead/chacha20 golang.org/x/crypto/ripemd160 github.com/litecoinfinance/btcutil github.com/litecoinfinance/btcd/chaincfg Standard library imports bytes encoding/binary errors fmt io math/big crypto/hmac crypto/sha256 crypto/ecdsa