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Merge pull request #19524 from gballet/scwallet-puk-count

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accounts/scwallet: Display PUK retry count
This commit is contained in:
Péter Szilágyi 2019-05-27 17:30:59 +03:00 committed by GitHub
commit 17cf0e5863
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 9 deletions
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27
accounts/scwallet/wallet.go
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@ -27,6 +27,7 @@ import (
"errors"
"fmt"
"math/big"
"regexp"
"sort"
"strings"
"sync"
@ -310,8 +311,10 @@ func (w *Wallet) Status() (string, error) {
return fmt.Sprintf("Failed: %v", err), err
}
switch {
case !w.session.verified && status.PinRetryCount == 0 && status.PukRetryCount == 0:
return fmt.Sprintf("Bricked, waiting for full wipe"), nil
case !w.session.verified && status.PinRetryCount == 0:
return fmt.Sprintf("Blocked, waiting for PUK and new PIN"), nil
return fmt.Sprintf("Blocked, waiting for PUK (%d attempts left) and new PIN", status.PukRetryCount), nil
case !w.session.verified:
return fmt.Sprintf("Locked, waiting for PIN (%d attempts left)", status.PinRetryCount), nil
case !status.Initialized:
@ -377,10 +380,18 @@ func (w *Wallet) Open(passphrase string) error {
case passphrase == "":
return ErrPINUnblockNeeded
case status.PinRetryCount > 0:
if !regexp.MustCompile(`^[0-9]{6,}$`).MatchString(passphrase) {
w.log.Error("PIN needs to be at least 6 digits")
return ErrPINNeeded
}
if err := w.session.verifyPin([]byte(passphrase)); err != nil {
return err
}
default:
if !regexp.MustCompile(`^[0-9]{12,}$`).MatchString(passphrase) {
w.log.Error("PUK needs to be at least 12 digits")
return ErrPINUnblockNeeded
}
if err := w.session.unblockPin([]byte(passphrase)); err != nil {
return err
}
@ -971,12 +982,10 @@ func (s *Session) derive(path accounts.DerivationPath) (accounts.Account, error)
copy(sig[32-len(rbytes):32], rbytes)
copy(sig[64-len(sbytes):64], sbytes)
pubkey, err := determinePublicKey(sig, sigdata.PublicKey)
if err != nil {
if err := confirmPublicKey(sig, sigdata.PublicKey); err != nil {
return accounts.Account{}, err
}
pub, err := crypto.UnmarshalPubkey(pubkey)
pub, err := crypto.UnmarshalPubkey(sigdata.PublicKey)
if err != nil {
return accounts.Account{}, err
}
@ -1046,10 +1055,10 @@ func (s *Session) sign(path accounts.DerivationPath, hash []byte) ([]byte, error
return sig, nil
}
// determinePublicKey uses a signature and the X component of a public key to
// recover the entire public key.
func determinePublicKey(sig, pubkeyX []byte) ([]byte, error) {
return makeRecoverableSignature(DerivationSignatureHash[:], sig, pubkeyX)
// confirmPublicKey confirms that the given signature belongs to the specified key.
func confirmPublicKey(sig, pubkey []byte) error {
_, err := makeRecoverableSignature(DerivationSignatureHash[:], sig, pubkey)
return err
}
// makeRecoverableSignature uses a signature and an expected public key to