Adam Back

Male, Person

65

Who is Adam Back?

Adam Back is a British cryptographer and crypto-hacker.

He is the inventor of hashcash, the proof-of-work system used by Bitcoin and several anti-spam systems. Hashcash has also been used in a number of other protocols such as combating blog spam, and defending against user namespace pollution.

He implemented credlib, a library that implements the credential systems of Stefan Brands and David Chaum.

He was the first to formalize the Non-Interactive Forward-Secrecy security property for email and to observe that any Identity Based Encryption scheme can be used to provide Non-Interactive Forward Secrecy.

He is also known for pioneering the use of ultra-compact code with his 3-line RSA in Perl signature file and non-exportable T-shirts to protest the United States cryptography export regulations.

He has a computer science Ph.D. from University of Exeter.

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Submitted
on July 23, 2013

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