George Blakley

George Robert (Bob) Blakley Jr. is an American cryptographer and a professor of mathematics at Texas A&M University, best known for inventing a secret sharing scheme in 1979.


Blakley did his undergraduate studies in physics at Georgetown University, and received his Ph.D. in mathematics from the University of Maryland in 1960. After postdoctoral studies at Cornell University and Harvard University, he held faculty positions at the University of Illinois at Urbana-Champaign and the State University of New York at Buffalo before joining Texas A&M in 1970. At Texas A&M, he was chairman of the mathematics department from 1970 to 1978.[1]

Blakley served on the board of directors of the International Association for Cryptologic Research from 1993 to 1995.[1] He co-founded the International Journal of Information Security, published by Springer-Verlag, in 2000,[1][2] and continues to serve on its advisory board.[3]

His son, George Robert (Bob) Blakley III, is also a computer security researcher.[4]

Secret-sharing scheme

In order to split a secret into several shares, Blakley's scheme specifies the secret as a point in n-dimensional space, and gives out shares that correspond to hyperplanes that intersect the secret point. Any n such hyperplanes will specify the point, while fewer than n hyperplanes will leave at least one degree of freedom, and thus leave the point unspecified.[5]

In contrast, Shamir's secret sharing scheme represents the secret as the y-intercept of an n-degree polynomial, and shares correspond to points on the polynomial.[6]

Awards and honors

In 2001 Blakley received an honorary doctorate from Queensland University of Technology.[1][7]

In 2009 he was named a fellow of the International Association for Cryptologic Research.[1][8][9]


  1. ^ a b c d e Curriculum vitae, Texas A&M University, retrieved 2010-07-14.
  2. ^ JournalSeek: International Journal of Information Security, retrieved 2010-07-14.
  3. ^ International Journal of Information Security editorial board, retrieved 2010-07-14.
  4. ^ Blog post by Bob Blakley III, September 2005, describing their relationship. Retrieved 2010-07-13.
  5. ^ Blakley, G. R. (1979). "Safeguarding cryptographic keys". Proceedings of the National Computer Conference. 48: 313-317.
  6. ^ Shamir, Adi (1979). "How to share a secret". Communications of the ACM. 22 (11): 612-613. doi:10.1145/359168.359176.
  7. ^ "2001 Travel and Talks". Mathematics Department, Texas A&M University. Archived from the original on January 7, 2013. Retrieved .
  8. ^ Recent faculty awards Archived 2010-07-23 at the Wayback Machine., College of Science, Texas A&M University, retrieved 2010-07-13.
  9. ^ Fellow citation, IACR, retrieved 2010-07-13.

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



Connect with defaultLogic
What We've Done
Led Digital Marketing Efforts of Top 500 e-Retailers.
Worked with Top Brands at Leading Agencies.
Successfully Managed Over $50 million in Digital Ad Spend.
Developed Strategies and Processes that Enabled Brands to Grow During an Economic Downturn.
Taught Advanced Internet Marketing Strategies at the graduate level.

Manage research, learning and skills at Create an account using LinkedIn to manage and organize your omni-channel knowledge. is like a shopping cart for information -- helping you to save, discuss and share.

  Contact Us