Category: history of cryptography

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Book Review: The Business of Secrets

Posted on By infossl
business of security, cryptography, encryption, history of cryptography, Security technology, Uncategorized

The Business of Secrets: Adventures in Selling Encryption Around the World by Fred Kinch (May 24, 2004) From the vantage point of today, it’s surreal reading about the commercial cryptography business in the 1970s. Nobody knew anything. The manufacturers didn’t know whether the cryptography they sold was any good. The customers didn’t know whether the … Read More “Book Review: The Business of Secrets” »

1965 Cryptanalysis Training Workbook Released by the NSA

Posted on By infossl
cryptanalysis, history of cryptography, nsa, Security technology, Uncategorized

In the early 1960s, National Security Agency cryptanalyst and cryptanalysis instructor Lambros D. Callimahos coined the term “Stethoscope” to describe a diagnostic computer program used to unravel the internal structure of pre-computer ciphertexts. The term appears in the newly declassified September 1965 document Cryptanalytic Diagnosis with the Aid of a Computer, which compiled 147 listings … Read More “1965 Cryptanalysis Training Workbook Released by the NSA” »

Jim Sanborn Is Auctioning Off the Solution to Part Four of the Kryptos Sculpture

Posted on By infossl
cia, encryption, history of cryptography, Security technology, Uncategorized

Well, this is interesting: The auction, which will include other items related to cryptology, will be held Nov. 20. RR Auction, the company arranging the sale, estimates a winning bid between $300,000 and $500,000. Along with the original handwritten plain text of K4 and other papers related to the coding, Mr. Sanborn will also be … Read More “Jim Sanborn Is Auctioning Off the Solution to Part Four of the Kryptos Sculpture” »

On the Voynich Manuscript

Posted on By infossl
academic papers, cryptanalysis, history of cryptography, Security technology, Uncategorized

Really interesting article on the ancient-manuscript scholars who are applying their techniques to the Voynich Manuscript. No one has been able to understand the writing yet, but there are some new understandings: Davis presented her findings at the medieval-studies conference and published them in 2020 in the journal Manuscript Studies. She had hardly solved the … Read More “On the Voynich Manuscript” »