Black, Sharon K. (1. januar 2002). «CHAPTER 9 - Encryption». I Black, Sharon K. Telecommunications Law in the Internet Age. Morgan Kaufmann. s. 327–387. doi:10.1016/b978-155860546-6/50031-4. Besøkt 28. januar 2024. "1967—Publications on Encryption Ignite Public Interest. Also in 1967, David Kahn, a journalist, published a history of cryptography entitled The Codebreakers"
echovita.com
«David Kahn», besøkt 25. januar 2024[Hentet fra Wikidata]
www.iacr.org, besøkt 15. august 2018[Hentet fra Wikidata]
jstor.org
Schultz, Mary Lou M. (1984). «Review of Kahn on Codes: Secrets of the New Cryptology». The Wisconsin Magazine of History. 2. 68: 137–139. ISSN0043-6534. Besøkt 28. januar 2024. «David Kahn has been an avid student of secret writing since he was thirteen. He is the author of The Codebreakers (1967), the first comprehensive history of crypto»
sciencedirect.com
Black, Sharon K. (1. januar 2002). «CHAPTER 9 - Encryption». I Black, Sharon K. Telecommunications Law in the Internet Age. Morgan Kaufmann. s. 327–387. doi:10.1016/b978-155860546-6/50031-4. Besøkt 28. januar 2024. "1967—Publications on Encryption Ignite Public Interest. Also in 1967, David Kahn, a journalist, published a history of cryptography entitled The Codebreakers"
snaccooperative.org
Social Networks and Archival Context, oppført som David Kahn (writer), SNAC Ark-ID w6807cjp, besøkt 9. oktober 2017[Hentet fra Wikidata]
Schultz, Mary Lou M. (1984). «Review of Kahn on Codes: Secrets of the New Cryptology». The Wisconsin Magazine of History. 2. 68: 137–139. ISSN0043-6534. Besøkt 28. januar 2024. «David Kahn has been an avid student of secret writing since he was thirteen. He is the author of The Codebreakers (1967), the first comprehensive history of crypto»
