Blind signature
Firma digital ciega
- Date
- 1982 · confidence high
- Place
- Santa Barbara, California, United States
- Credited to
- David Chaum
- Field
- Knowledge & symbols
What it is
Cryptographic scheme that lets a message be signed without the signer seeing its content, disguised (blinded) beforehand and verifiable afterward against the original.
What it led to
- Anonymous digital cash (ecash)
- Privacy-preserving electronic voting systems
- Privacy protocols for digital payments
- Foundation for anonymous primitives in cryptocurrencies