Name :David Chaum Achievements: - Pioneer of early cryptography - Proposed Digital cash in 1982 blind signatures for untraceable payments - Released a whitepaper named security without identification: Transaction systems to make big brother obsolete - Founder of Digicash in 1990 and developed ecash - Unfortunately Digicash closed in 1999 and credit cards became the dominant form of electronic payments. Websites: https://www.bbc.com/news/technology-29032399 Litterature by David Chaum: 1982: Blind Signatures for Untraceable Payments which contained the first description of a digital scheme 1985: Together With Israeli cryptographers Amos Fiat and Moni Naor he wrote the paper untraceable electronic cash 1988: Untraceable Electronic Mail, Return Addresses, and Digital Pseudonyms 1988: The Dining Cryptographers Problem: Unconditional Sender and Recipient Untraceability 1989: Online Cash Checks
