Mix networks are the basis of some remailers and are the conceptual ancestor to modern anonymous web browsing tools like Tor (based on onion routing).
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In 1990, he founded DigiCash, an electronic cash company, in Amsterdam to commercialize the ideas in his research.
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David Lee Chaum (born 1955) is the inventor of many cryptographic protocols, as well as ecash and DigiCash.
Cryptographers think of the field as originating in the work of Dr David Chaum who invented the blinded signature.
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However, it was the work of David Chaum that excited the cryptography community about the potential of encrypted messages as actual financial instruments.
Prêt à Voter was inspired by the earlier, voter-verifiable scheme by David Chaum.
David Chaum wrote an article in 1981 that described many of the features present in modern pseudonymous remailers.
This interest led to attending several conferences (Financial Cryptography 98, various MIT presentations), participating on mailing lists such as "cypherpunks" and "dbs", and eventually implementing patented Chaumian digital cash in an underground library, HINDE, with Ian Goldberg, named after Hinde ten Berge, a Dutch cypherpunk also present at FC98.
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