Imports github.com/quickchainproject/quickchain/common github.com/quickchainproject/quickchain/common/math github.com/quickchainproject/quickchain/crypto/secp256k1 github.com/quickchainproject/quickchain/crypto/sha3 github.com/quickchainproject/quickchain/rlp Standard library imports crypto/ecdsa crypto/elliptic crypto/rand encoding/hex errors fmt io io/ioutil math/big os