11 points Bluestein 2 days ago 5 comments
eesmith 44 minutes ago | parent
The paper is available at https://www.tandfonline.com/doi/full/10.1080/01611194.2025.2... from Cryptologia v50, 2026.
A PDF of Bellovin's paper (marked "draft") is available from the author at https://www.cs.columbia.edu/~smb/papers/codebooks.pdf .
A "preliminary version" of the same paper is available at https://www.cs.columbia.edu/~CS4HS/talks/codebooks.pdf .
The "International Police Telegraph code" is available at https://discovery.nationalarchives.gov.uk/details/r/C210621 ; registration required.