#001 · Security ProfessionalsIconicLocked in

Whitfield Diffie

Co-Author of Public-Key Cryptography

Diffie–Hellman key exchange, and the end of the shared-secret era

Rating

98Impact score
Technical depth96
Defensive craft90
Research99
Influence99
FromUSA
Era1976–present

Domains

CryptographyKey exchangePolicy

Scouting report

With Martin Hellman, published “New Directions in Cryptography” in 1976 and showed that two parties who had never met could agree on a secret over a wire anyone could read. It broke a problem the field had considered permanent, and every TLS handshake since is a descendant. Shared the 2015 Turing Award for it, and spent decades afterwards arguing the civil-liberties side of the crypto policy fights.

Curator’s note

The paper that made secure commerce on a public network conceivable at all.

Portrait

Painted from a photograph of Whitfield Diffie by Duncan.Hull, licensed CC BY-SA 4.0.

Sources