Ralph Merkle

Ralph Merkle
Merkle at the Singularity Summit 2007
Born	(1952-02-02) February 2, 1952 (age 72) Berkeley, California, US
Education	UC Berkeley (B.A., 1974; M.S., 1977) Stanford University (Ph.D., 1979)
Known for	Co-inventor of public key cryptography Merkle tree[2] Merkle's puzzles Merkle–Hellman knapsack cryptosystem Merkle–Damgård construction
Spouse	Carol Shaw
Awards	IEEE Richard W. Hamming Medal (2010) Computer History Museum Fellow (2011)[1]
Scientific career
Fields	Public key cryptography, cryonics
Institutions	Singularity University Alcor Life Extension Foundation Institute for Molecular Manufacturing Elxsi Georgia Institute of Technology
Thesis	Secrecy, authentication and public key systems
Doctoral advisor	Martin Hellman
Website	www.ralphmerkle.com

Ralph C. Merkle (born February 2, 1952) is an American computer scientist and mathematician. He is one of the inventors of public-key cryptography, the inventor of cryptographic hashing, and more recently a researcher and speaker on cryonics.

Merkle is a renowned cryptographer, known for devising Merkle's Puzzles, co-inventing the Merkle–Hellman knapsack cryptosystem, and inventing cryptographic hashing (Merkle–Damgård construction) and Merkle trees. He has worked as a manager at Elxsi, research scientist at Xerox PARC (Palo Alto Research Center), and a nanotechnology theorist at Zyvex. Merkle has held positions as a Distinguished Professor at Georgia Tech, senior research fellow at IMM, faculty member at Singularity University, and board member at Alcor Life Extension Foundation. He received the IEEE Richard W. Hamming Medal in 2010 and has published works on molecular manipulation and self-replicating machines. Ralph Merkle is a grandnephew of baseball star Fred Merkle and is married to video game designer Carol Shaw. He serves on the board of directors of the cryonics organization Alcor Life Extension Foundation and appears in the science fiction novel The Diamond Age.