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Twinning builds smart card technology — IC chip operating systems and biometric security.

TWINCARD

One fingerprint.
One key.

The private key is generated from your fingerprint and never leaves the card. Identity, payments, and digital assets — proven by you alone, with no server, no phone, and no seed phrase.

The Principle

One principle, three domains.

The private key never crosses the card boundary. Only the public key leaves.

SECURE ELEMENT · TWINCARD Fingerprint GU-ID PRIVATE KEY Never leaves the card PUBLIC KEY Identity Payment Assets
Private Key

Derived from your fingerprint and sealed inside the IC chip. Never stored on any server or phone.

Public Key

Only the public key is shared with services — true self-sovereign identity (SSI).

One key, three domains

One key protects identity, payments, and assets.

ID Identity

Services authenticate users by collecting more personal data than they need.

Prove yourself with a key made from your fingerprint — true Self-Sovereign Identity. Share only your public key, and decide what else to reveal.

PAY Payment

Financial and identity data sit exposed on a phone that is always online.

Hold your credit, debit, and mobile cards on the card itself and connect to the network only when you choose — cutting off constant interception and hacking.

ASSET Assets

A lost or leaked seed phrase means lost assets.

A crypto wallet with no seed phrase, run by a key derived from your fingerprint — stronger security, without the burden of managing one.

Foundation

The technology beneath it.

Built on Twinning's IC chip operating systems and years of payment and authentication standards.

01 IC Chip Operating SystemIC Chip O/S An on-card OS that controls key generation, storage, and computation directly on the secure element.
02 Biometric Key GenerationGU-ID Derives a unique private key for each person from their fingerprint, inside the card. Tamper- and clone-proof.
03 Dynamic Magnetic StripDMS Keeps compatibility with existing magnetic payment infrastructure while removing the cloning risk of static magnetic data.
04 Multi-Wallet Smart CardMulti-Wallet Holds multiple cards, identities, and assets on one card, presented selectively under the user's control.

Contact

Get in touch.

Twinning is not currently pursuing new business.
For inquiries about TWINCARD technology and partnerships, please reach out below.

phillip@twinning.kr