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1. Correspondences Regarding Cryptography between John Nash and the NSA [typeset version]

2. National Cryptologic Museum Opens New Exhibit on Dr. John Nash

3. https://courses.csail.mit.edu/6.857/2012/files/nash.py

4. https://courses.csail.mit.edu/6.857/2012/files/H02-ps1.pdf

5. A Brief History of NP-Completeness, 1954–2012

6. Working With Generators—John Nash's Cipherer

7. Adventures in Computation: Amazing New Declassified Document

8. The Gödel Letter

9. John Nash’s Letter to the NSA

10. A Short History of Computational Complexity

11. John Nash’s Letter to the NSA § Comment 5455

12. John Nash’s Letter to the NSA § Comment 5465

13. John Nash’s Letter to the NSA § Comment 5458

14. John Nash's Declassified 1955 Letter To the NSA

15. Wikipedia Bibliography:

    1. National Security Agency

    2. John Forbes Nash Jr

    3. RAND Corporation

    4. David A. Huffman  :

       https://en.wikipedia.org/wiki/David_A._Huffman

    5. Huffman coding

    6. Squaring the circle  :

       https://en.wikipedia.org/wiki/Squaring_the_circle

    7. Game theory

    8. Kerckhoffs's principle

    9. Non-cooperative games  :

       https://en.wikipedia.org/wiki/Non-cooperative_games

    10. Prisoner’s dilemma

    11. Cooperative game theory

    12. A Beautiful Mind (film)

    13. Russell Crowe

    14. Nobel Memorial Prize in Economic Sciences  :

        https://en.wikipedia.org/wiki/Nobel_Memorial_Prize_in_Economic_Sciences

    15. Ron Rivest

    16. Communication Theory of Secrecy Systems  :

        https://en.wikipedia.org/wiki/Communication_Theory_of_Secrecy_Systems

    17. History of cryptography § Modern cryptography  :

        https://en.wikipedia.org/wiki/History_of_cryptography#Modern_cryptography

    18. Computational complexity theory

    19. Linear-feedback shift register  :

        https://en.wikipedia.org/wiki/Linear-feedback_shift_register

    20. William F. Friedman  :

        https://en.wikipedia.org/wiki/William_F._Friedman

    21. Type B Cipher Machine  :

        https://en.wikipedia.org/wiki/Type_B_Cipher_Machine

    22. NP-hardness

    23. Merkle–Hellman knapsack cryptosystem  :

        https://en.wikipedia.org/wiki/Merkle%E2%80%93Hellman_knapsack_cryptosystem

    24. P (complexity)

    25. Linear programming