prysm-pulse/validator/keymanager/v2/direct/mnemonic.go

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Direct Keymanager: Implement Account Creation (#6466) * implementation using petname and keystore * writing new account to disk along with password * more logic for properly writing accounts * print out mnemonic * save deposit data rlp * write deposit tx and ssz deposit data to account path * wrap up account creation * fix prompt * generate deposit tx * direct account creation test * fix up formatting * lint * match formatting * more sustainable approach towards unmarshaling config file * resolve feedback * fix broken import * comprehensive tests for create account * tests pass * Merge branch 'master' into direct-keys * tidy * Merge branch 'direct-keys' of github.com:prysmaticlabs/prysm into direct-keys * Merge refs/heads/master into direct-keys * gaz * Merge branch 'direct-keys' of github.com:prysmaticlabs/prysm into direct-keys * nondeterministic names * comment * gaz * better error wrap * Merge refs/heads/master into direct-keys * docker deps * Merge branch 'direct-keys' of github.com:prysmaticlabs/prysm into direct-keys * Merge refs/heads/master into direct-keys * Merge refs/heads/master into direct-keys * Merge refs/heads/master into direct-keys * Merge refs/heads/master into direct-keys * Merge refs/heads/master into direct-keys * Merge refs/heads/master into direct-keys * Merge refs/heads/master into direct-keys * Merge refs/heads/master into direct-keys * Merge refs/heads/master into direct-keys * ivan feedback * Merge refs/heads/master into direct-keys * Update validator/accounts/v2/wallet.go Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com> * fixed tests and comments * Merge refs/heads/master into direct-keys
2020-07-03 18:49:16 +00:00
package direct
import (
"fmt"
"github.com/manifoldco/promptui"
"github.com/tyler-smith/go-bip39"
)
// SeedPhraseFactory defines a struct which
// can generate new seed phrases in human-readable
// format from a source of entropy in raw bytes. It
// also provides methods for verifying a user has successfully
// acknowledged the mnemonic phrase and written it down offline.
type SeedPhraseFactory interface {
Generate(data []byte) (string, error)
ConfirmAcknowledgement(phrase string) error
}
// EnglishMnemonicGenerator implements methods for creating
// mnemonic seed phrases in english using a given
// source of entropy such as a private key.
type EnglishMnemonicGenerator struct{}
// Generate a mnemonic seed phrase in english using a source of
// entropy given as raw bytes.
func (m *EnglishMnemonicGenerator) Generate(data []byte) (string, error) {
return bip39.NewMnemonic(data)
}
// ConfirmAcknowledgement displays the mnemonic phrase to the user
// and confirms the user has written down the phrase securely offline.
func (m *EnglishMnemonicGenerator) ConfirmAcknowledgement(phrase string) error {
log.Info(
"Write down the sentence below, as it is your only " +
"means of recovering your withdrawal key",
)
fmt.Printf(`
=================Withdrawal Key Recovery Phrase====================
%s
===================================================================
`, phrase)
// Confirm the user has written down the mnemonic phrase offline.
prompt := promptui.Prompt{
Label: "Confirm you have written down the recovery words somewhere safe (offline)",
IsConfirm: true,
}
expected := "y"
var result string
var err error
for result != expected {
result, err = prompt.Run()
if err != nil {
log.Errorf("Could not confirm acknowledgement of prompt, please enter y")
}
}
return nil
}