Improving Crypto Wallet Usability with Steganography

Stakeholders

  • Users

  • Wallets (incl. dapps, exchanges etc)

Needs Hypotheses

  • PRIO Wallets want to improve usability of existent solutions (not print)

  • User want easier backup of their seed phrases securely

Existent Alternatives

  • Hot wallet approach

  • Hard wallets integration

  • Contacts Recovery (Gnosis SAFE)

  • Knowledge Based Authentication / Steganography

  • Biometry

Solutions Hypotheses

  • Knowledge Based Authentication / Steganography is comparably better than other alternatives

Steganography

Visual cryptography is a cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decrypted information appears as a visual image.

The idea: Use image-based steganography and optional password to backup your seed phrase The rationale: The offline backup is proven to be fragile to a human factor errors. The hardware may crash. The ideal backup:

  • is stored on many devices and cloud

  • may be visible to public

There is only one asset that we all have that satisfies those conditions. Photo.

You may take a family picture that everybody has and encode your seed phrase with or without password. Send photo and feel safe.