Adam Back
Adam Back (born July 1970[1]) is a British businessman, cryptographer and cypherpunk. Back corresponded with Satoshi Nakamoto and was cited in the Bitcoin whitepaper.
Adam Back | |
---|---|
Born | Adam Back July 1970 (age 50) London, England, UK |
Nationality | British |
Occupation | Cryptographer |
Known for | hashcash, Blockstream, RSA (cryptosystem) |
Home town | Sliema, Malta |
Website | http://www.cypherspace.org/adam/ |
Life
Back was born in London, England, United Kingdom, and he now resides in Sliema, Malta. He has a computer science Ph.D.[2] from University of Exeter in South West England.
Cryptography software
Back is a pioneer of early digital asset research similarly as Wei Dai, David Chaum and Hal Finney.[3][4] In 1997, Back invented Hashcash.[5] A similar system is used in bitcoin.[6][7][8]
He also implemented credlib,[9][10] a library that implements the credential systems of Stefan Brands and David Chaum.
He was the first to describe the "non-interactive forward secrecy"[11][12][13] 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 promoting the use of ultra-compact code with his 2-line[14] and 3-line RSA (cryptosystem) in Perl[15][16][17] signature file and non-exportable T-shirts[18][19] to protest cryptography export regulations.[20]
Back was one of the first two people to receive an email from Satoshi Nakamoto.[21][2] In 2016 Financial Times cited Back as a potential Nakamoto candidate, along with Nick Szabo and Hal Finney.[22] In 2020, a YouTube channel called BarelySociable claimed that Back was Nakamoto. Back denied this.[2] Craig Steven Wright had sued Back because Back stated that Wright was not Nakamoto, with Wright subsequently dropping the suit.[2]
Back has promoted the use of satellites and mesh networks to broadcast and receive bitcoin transactions, as a backup for the traditional internet.[23]
Business career
As of 8 January 2018, Back is the CEO of Blockstream.[6]
See also
References
- Singh, Rachna (2019). The Bitcoin Saga: A Mixed Montage. Bloomsbury Publishing. ISBN 978-9388271837.
- Kharif, Olga (2 June 2020). "Latest Satoshi Nakamoto Candidate Buying Bitcoin No Matter What". Bloomberg. Retrieved 3 June 2020.
- Leising, Matthew (30 June 2018). "Is Bitcoin Creator Writing a Book? Cryptic Note Indicates Yes". Bloomberg. Retrieved 13 May 2020.
- Bustillos, Maria (25 August 2015). "Inside the Fight Over Bitcoin's Future". New Yorker. Retrieved 13 May 2020.
- Narayanan, Arvind; Bonneau, Joseph; Felten, Edward; Miller, Andrew; Goldfeder, Steven (2016). Bitcoin and Cryptocurrency Technologies: A Comprehensive Introduction. Princeton and Oxford: Princeton University Press. ISBN 978-0-691-17169-2.
- Shaw, Jessica Marmor (8 January 2018). "Bitcoin and cryptocurrency on Twitter: The most important people to follow". Marketwatch. Retrieved 14 May 2020.
- "Bitcoin: A Peer-to-Peer Electronic Cash System" (PDF).
- Casey, Michael J. (22 October 2020). "BitBeat: Bitcoin Coding Allstars Launch Sidechains Project to Boost Innovation". WSJBlogs. Retrieved 14 May 2020.
- Frisby, Dominic (2015). "Footnotes". Bitcoin: The future of money?. Unbound. ISBN 978-1783521029.
- "credlib - Credential Library". cypherspace.org.
- Boyd, Colin. "A Modern View on Forward Security" (PDF). IACR. Retrieved 14 May 2020.
- Anderson, Ross (2002). "Two remarks on public key cryptology" (PDF). Cambridge University. Retrieved 14 May 2020.
- "Non-Interactive Forward Secrecy". cypherspace.org.
- Salomon, David (2003). "Secure Programming with Perl". Data Privacy and Security. Springer. p. 200. ISBN 9781441918161.
- Judmayer, Aljosha; Stifter, Nicholas (2017). "Before bitcoin". Blocks and Chains: Introduction to Bitcoin, Cryptocurrencies, and Their Consensus Mechanisms (Synthesis Lectures on Information Security, Privacy, and Tru). Morgan & Claypool Publishers. p. 17. ISBN 9781627057165.
- "export-a-crypto-system sig". cypherspace.org.
- Sinn, Richard (2007). "Secure Programming with Perl". Software Security Technologies. Cengage Learning. p. 366. ISBN 9781428319455.
- Blanchette, Jean-François (2012). "On the brink of revolution". Burdens of Proof: Cryptographic Culture and Evidence Law in the Age of Electronic Documents. MIT Press. p. 50. ISBN 978-0262017510.
- "Munitions T-shirt". cypherspace.org.
- Brunton, Finn (2019). "On the brink of revolution". Digital Cash: The Unknown History of the Anarchists, Utopians, and Technologists Who Created Cryptocurrency. Princeton Press. p. 97. ISBN 9780691179490.
- RATLIFF, EVAN (16 July 2019). "Was Bitcoin Created by This International Drug Dealer? Maybe!". Wired. Retrieved 13 May 2020.
- Kaminska, Izabella (7 May 2016). "Bitcoin: Identity crisis". Financial Times. Retrieved 4 June 2020.
- del Castillo, Michael (17 December 2018). "Who Needs Verizon? Blockstream Broadcasts Entire Bitcoin Blockchain From Space". Forbes. Retrieved 13 May 2020.