Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2019/02/reconstructing_.html
Lessons learned in reconstructing the World War II-era SIGSALY voice encryption system.
Tag Archives: historyofcryptography
Back Issues of the NSA’s Cryptolog
Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2018/12/back_issues_of_.html
Five years ago, the NSA published 23 years of its internal magazine, Cryptolog. There were lots of redactions, of course.
What’s new is a nice user interface for the issues, noting highlights and levels of redaction.
Musical Ciphers
Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2018/04/musical_ciphers.html
Interesting history.
Student Cracks Inca Knot Code
Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2018/01/student_cracks_.html
The Women of Bletchley Park
Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2017/06/the_women_of_bl.html
Really good article about the women who worked at Bletchley Park during World War II, breaking German Enigma-encrypted messages.
NSA Documents from before 1930
Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2017/03/nsa_documents_f_1.html
Here is a listing of all the documents that the NSA has in its archives that are dated earlier than 1930.
Friedman Comments on Yardley
Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2017/03/friedman_commen.html
This is William Friedman’s highly annotated copy of Herbert Yardley’s book, The American Black Chamber.
Enigma Machine Sold for Almost Half a Million Dollars
Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2016/12/enigma_machine_.html
A fully functional four-rotor Enigma machine sold for $463,500.
Wow.
Voynich Manuscript Facsimile Published
Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2016/12/voynich_manuscr.html
Yale University Press has published a facsimile of the Voynich Manuscript.
The manuscript is also available online.