PQC Imza: Quantum E-Signature

PQC Imza is the phone app for pqc-imza.com. Sign documents with a post-quantum key that never leaves your phone, prove who you are with the chip in your ID card or passport, and keep SciChain assets in a quantum-resistant wallet.

SIGN DOCUMENTS
• Sign in with Google: the same account as pqc-imza.com
• Documents sent to your email wait on the Sign tab
• Scan a signing code on a screen to sign in the room
• Confirm every signature with your fingerprint, face or screen lock
• Signatures use ML-DSA-44, the NIST FIPS 204 post-quantum standard
• Completed documents are recorded on the SciChain blockchain

VERIFY YOUR IDENTITY
• Read the chip in your ID card or passport over NFC
• The chip's data is checked against the issuing country's certificates
• Chip ID cards and passports from over 100 countries
• Your verified name stands behind every signature you make

A NEW PHONE KEEPS YOUR SIGNATURES
• Sign in on the new phone and keep signing
• Documents are addressed to your email, not to a key
• Your earlier signatures stay valid, and your profile lists every key you have used

QUANTUM-RESISTANT WALLET
• Send and receive SCI and tokens on SciChain and other EVM networks
• Keys are created on your phone and kept in its secure storage
• Back up your wallet and restore it on another phone

PRIVACY
• Your private keys never leave your phone
• Your ID is read on the phone; your verified name and ID numbers are sent only with the signatures you make

Available in English, Türkçe, Español, 简体中文, العربية, हिन्दी, Português, Русский, Français and Bahasa Indonesia.

Recent changes:
PQC Wallet is now PQC Imza: same app, same account, new name.
• Delete your account from the app: Settings > Account > Delete account.
• A wallet marked "Key missing" can be restored with its recovery phrase or private key. It keeps its name and history.
• Fixes to the app lock and wallet recovery.