Jump to content

Adam Back: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
Phil330d (talk | contribs)
14 edits
m BarelySociable -> Barely Sociable
Filled in 1 bare reference(s) with reFill 2
Line 26: Line 26:
== Cryptography software ==
== Cryptography software ==
[[File:Munitions T-shirt (front).jpg|thumb|right|upright=0.9|Back's "Munitions" T-shirt featured computer code that was considered to be a weapon in the United States.]]
[[File:Munitions T-shirt (front).jpg|thumb|right|upright=0.9|Back's "Munitions" T-shirt featured computer code that was considered to be a weapon in the United States.]]
Back is a pioneer of early digital asset research similarly as [[Wei Dai]], [[David Chaum]], and [[Hal Finney (computer scientist)|Hal Finney]].<ref name="bloomberg20180630">{{cite news |last1= Leising |first1= Matthew |title= Is Bitcoin Creator Writing a Book? Cryptic Note Indicates Yes|url=https://www.bloomberg.com/news/articles/2018-06-30/is-bitcoin-creator-writing-a-book-cryptic-note-indicates-yes|access-date=13 May 2020 |newspaper=Bloomberg |date=30 June 2018}}</ref><ref name="newyorker20150825">{{cite news |last1= Bustillos |first1= Maria |title= Inside the Fight Over Bitcoin's Future|url=https://www.newyorker.com/business/currency/inside-the-fight-over-bitcoins-future|access-date=13 May 2020 |newspaper=New Yorker |date=25 August 2015}}</ref> In 1997, Back invented [[Hashcash]].<ref>{{Cite book|title=Bitcoin and Cryptocurrency Technologies: A Comprehensive Introduction|last1=Narayanan|first1=Arvind|publisher=Princeton University Press|year=2016|isbn=978-0-691-17169-2|location=Princeton and Oxford |last2=Bonneau |first2=Joseph |last3=Felten |first3=Edward |last4=Miller |first4=Andrew |last5=Goldfeder |first5=Steven}}</ref> A similar system is used in [[bitcoin]].<ref name="MarketwatchPeople">{{cite news |last1= Shaw |first1= Jessica Marmor |title= Bitcoin and cryptocurrency on Twitter: The most important people to follow|url=https://www.marketwatch.com/story/bitcoin-and-cryptocurrency-on-twitter-the-most-important-people-to-follow-2017-12-04|access-date=14 May 2020 |newspaper=Marketwatch |date=8 January 2018}}</ref><ref>{{cite web|url=https://bitcoin.org/bitcoin.pdf|title=Bitcoin: A Peer-to-Peer Electronic Cash System}}</ref><ref name="WSJBack">{{cite news |last1= Casey |first1= Michael J. |title= BitBeat: Bitcoin Coding Allstars Launch Sidechains Project to Boost Innovation|url=https://blogs.wsj.com/moneybeat/2014/10/22/bitbeat-bitcoin-coding-allstars-launch-sidechains-project-to-boost-innovation/ |access-date=14 May 2020 |newspaper=WSJBlogs |date=22 October 2020}}</ref>
Back is a pioneer of early digital asset research similarly as [[Wei Dai]], [[David Chaum]], and [[Hal Finney (computer scientist)|Hal Finney]].<ref name="bloomberg20180630">{{cite news |last1= Leising |first1= Matthew |title= Is Bitcoin Creator Writing a Book? Cryptic Note Indicates Yes|url=https://www.bloomberg.com/news/articles/2018-06-30/is-bitcoin-creator-writing-a-book-cryptic-note-indicates-yes|access-date=13 May 2020 |newspaper=Bloomberg |date=30 June 2018}}</ref><ref name="newyorker20150825">{{cite news |last1= Bustillos |first1= Maria |title= Inside the Fight Over Bitcoin's Future|url=https://www.newyorker.com/business/currency/inside-the-fight-over-bitcoins-future|access-date=13 May 2020 |newspaper=New Yorker |date=25 August 2015}}</ref> In 1997, Back invented [[Hashcash]].<ref>{{Cite book|title=Bitcoin and Cryptocurrency Technologies: A Comprehensive Introduction|last1=Narayanan|first1=Arvind|publisher=Princeton University Press|year=2016|isbn=978-0-691-17169-2|location=Princeton and Oxford |last2=Bonneau |first2=Joseph |last3=Felten |first3=Edward |last4=Miller |first4=Andrew |last5=Goldfeder |first5=Steven}}</ref> A similar system is used in [[bitcoin]].<ref name="MarketwatchPeople">{{cite news |last1= Shaw |first1= Jessica Marmor |title= Bitcoin and cryptocurrency on Twitter: The most important people to follow|url=https://www.marketwatch.com/story/bitcoin-and-cryptocurrency-on-twitter-the-most-important-people-to-follow-2017-12-04|access-date=14 May 2020 |newspaper=Marketwatch |date=8 January 2018}}</ref><ref>{{Cite web|url=https://bitcoin.org/bitcoin.pdf|title=Bitcoin: A Peer-to-Peer Electronic Cash System}}</ref><ref name="WSJBack">{{cite news |last1= Casey |first1= Michael J. |title= BitBeat: Bitcoin Coding Allstars Launch Sidechains Project to Boost Innovation|url=https://blogs.wsj.com/moneybeat/2014/10/22/bitbeat-bitcoin-coding-allstars-launch-sidechains-project-to-boost-innovation/ |access-date=14 May 2020 |newspaper=WSJBlogs |date=22 October 2020}}</ref>


He also implemented ''credlib'',<ref>{{Cite book|chapter-url= https://books.google.com/books?id=htliCAAAQBAJ&pg=PT274 |title= Bitcoin: The future of money? |publisher=Unbound|year=2015|isbn= 978-1783521029 |chapter=Footnotes|last1= Frisby|first1= Dominic }}</ref>{{better source|reason=source is self published|date=June 2020}}<ref>{{cite web|url=http://www.cypherspace.org/credlib|title=credlib - Credential Library|publisher=cypherspace.org}}</ref>{{better source|reason=source not independent|date=June 2020}} a library that implements the credential systems of [[Stefan Brands]] and [[David Chaum]].
He also implemented ''credlib'',<ref>{{Cite book|chapter-url= https://books.google.com/books?id=htliCAAAQBAJ&pg=PT274 |title= Bitcoin: The future of money? |publisher=Unbound|year=2015|isbn= 978-1783521029 |chapter=Footnotes|last1= Frisby|first1= Dominic }}</ref>{{better source|reason=source is self published|date=June 2020}}<ref>{{cite web|url=http://www.cypherspace.org/credlib|title=credlib - Credential Library|publisher=cypherspace.org}}</ref>{{better source|reason=source not independent|date=June 2020}} a library that implements the credential systems of [[Stefan Brands]] and [[David Chaum]].

Revision as of 22:12, 7 March 2021

Adam Back
BornJuly 1970 (age 54)
London, England, UK
EducationUniversity of Exeter
Scientific career
FieldsCryptographic protocols
Electronic cash
Privacy-enhancing technologies
Distributed systems
InstitutionsZero-Knowledge Systems
Pi Corporation
Blockstream
ThesisParallelization of general purpose programs using optimistic techniques from parallel discrete event simulation (1995)
Doctoral advisorStephen Turner
Websitecypherspace.org/adam

Adam Back (born July 1970) is a British cryptographer and cypherpunk. He is the CEO of Blockstream, which he co-founded in 2014. He invented Hashcash, which is used in the Bitcoin mining process.

Life

Back was born in London, England, in July 1970.[1] His first computer was a Sinclair ZX81. He taught himself Basic, and spent his time reverse engineering video games, finding decryption keys in software packages. He completed his A levels in advanced mathematics, physics and economics.

He has a computer science PhD in distributed systems from the University of Exeter.[2] During his PhD Back worked with compilers to make use of parallel computers in a semi automated way. He became interested in pgp encryption, electronic cash and remailers. He spent two thirds of his time working with encryption. After graduation, Adam spent his career as a consultant in start ups and larger companies in applied cryptography, writing cryptographic libraries, designing, reviewing and breaking other people's cryptographic protocols.[3]

Cryptography software

Back's "Munitions" T-shirt featured computer code that was considered to be a weapon in the United States.

Back is a pioneer of early digital asset research similarly as Wei Dai, David Chaum, and Hal Finney.[4][5] In 1997, Back invented Hashcash.[6] A similar system is used in bitcoin.[7][8][9]

He also implemented credlib,[10][better source needed][11][better source needed] a library that implements the credential systems of Stefan Brands and David Chaum.

He was the first to describe the "non-interactive forward secrecy"[12][13][14] 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[15] and 3-line RSA in Perl[16][17][18] signature file and non-exportable T-shirts[19][20] to protest cryptography export regulations.[21]

Back was one of the first two people to receive an email from Satoshi Nakamoto.[22][2] In 2016, the Financial Times cited Back as a potential Nakamoto candidate, along with Nick Szabo and Hal Finney.[23] In 2020, a YouTube channel called Barely Sociable claimed that Back was Nakamoto. Back denied this.[2] Craig Wright had sued Back for stating 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.[24]

Business career

On 3 October 2016, Back was appointed as CEO of Blockstream.[25]

References

  1. ^ Singh, Rachna (2019). The Bitcoin Saga: A Mixed Montage. Bloomsbury Publishing. ISBN 978-9388271837.
  2. ^ a b c d Kharif, Olga (2 June 2020). "Latest Satoshi Nakamoto Candidate Buying Bitcoin No Matter What". Bloomberg. Retrieved 3 June 2020.
  3. ^ https://www.youtube.com/watch?v=qEaulpPo7iM. {{cite web}}: Missing or empty |title= (help)CS1 maint: url-status (link)
  4. ^ Leising, Matthew (30 June 2018). "Is Bitcoin Creator Writing a Book? Cryptic Note Indicates Yes". Bloomberg. Retrieved 13 May 2020.
  5. ^ Bustillos, Maria (25 August 2015). "Inside the Fight Over Bitcoin's Future". New Yorker. Retrieved 13 May 2020.
  6. ^ 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.
  7. ^ Shaw, Jessica Marmor (8 January 2018). "Bitcoin and cryptocurrency on Twitter: The most important people to follow". Marketwatch. Retrieved 14 May 2020.
  8. ^ "Bitcoin: A Peer-to-Peer Electronic Cash System" (PDF).
  9. ^ Casey, Michael J. (22 October 2020). "BitBeat: Bitcoin Coding Allstars Launch Sidechains Project to Boost Innovation". WSJBlogs. Retrieved 14 May 2020.
  10. ^ Frisby, Dominic (2015). "Footnotes". Bitcoin: The future of money?. Unbound. ISBN 978-1783521029.
  11. ^ "credlib - Credential Library". cypherspace.org.
  12. ^ Boyd, Colin. "A Modern View on Forward Security" (PDF). IACR. Retrieved 14 May 2020.
  13. ^ Anderson, Ross (2002). "Two remarks on public key cryptology" (PDF). Cambridge University. Retrieved 14 May 2020.
  14. ^ "Non-Interactive Forward Secrecy". cypherspace.org.
  15. ^ Salomon, David (2003). "Secure Programming with Perl". Data Privacy and Security. Springer. p. 200. ISBN 9781441918161.
  16. ^ 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.
  17. ^ "export-a-crypto-system sig". cypherspace.org.
  18. ^ Sinn, Richard (2007). "Secure Programming with Perl". Software Security Technologies. Cengage Learning. p. 366. ISBN 9781428319455.
  19. ^ 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.
  20. ^ "Munitions T-shirt". cypherspace.org.
  21. ^ 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.
  22. ^ RATLIFF, EVAN (16 July 2019). "Was Bitcoin Created by This International Drug Dealer? Maybe!". Wired. Retrieved 13 May 2020.
  23. ^ Kaminska, Izabella (7 May 2016). "Bitcoin: Identity crisis". Financial Times. Retrieved 4 June 2020.
  24. ^ del Castillo, Michael (17 December 2018). "Who Needs Verizon? Blockstream Broadcasts Entire Bitcoin Blockchain From Space". Forbes. Retrieved 13 May 2020.
  25. ^ Blockstream (2016-10-03). "Blockstream Appoints Hashcash Inventor Dr. Adam Back as CEO". PR News Wire. Retrieved 2020-12-05.
Retrieved from "https://en.wikipedia.org/enwiki/w/index.php?title=Adam_Back&oldid=1010890847"