1. 1. Biham, Eli and Shamir, Adi, Differential Cryptanalysis of the Data Encryption Standard, Springer Verlag, 1993. ISBN 0-387- 97930-1, ISBN 3-540-97930-1.
   2. Biham, Eli and Alex Biryukov: An Improvement of Davies' Attack on DES. J. Cryptology 10(3): 195–206 (1997)
   3. Biham, Eli, Orr Dunkelman, Nathan Keller: Enhancing Differential-Linear Cryptanalysis. ASIACRYPT 2002: pp254–266
   4. Biham, Eli: A Fast New DES Implementation in Software
   5. Campbell, Keith W., Michael J. Wiener: DES is not a Group. CRYPTO 1992: pp512–520 of the NBS Data Encryption Standard" IEEE Computer 10(6), June 1977, pp74–84
   6. Kaliski, Burton S., Matt Robshaw: Linear Cryptanalysis Using Multiple Approximations. CRYPTO 1994: pp26–39
   7. Knudsen, Lars, John Erik Mathiassen: A Chosen-Plaintext Linear Attack on DES. Fast Software Encryption - FSE 2000: pp262–272
   8. Langford, Susan K., Martin E. Hellman: Differential-Linear Cryptanalysis. CRYPTO 1994: 17–25
   9. S. Tang, “Simple Secret Sharing and Threshold RSA Signature Schemes”, Journal of Information and Computational Science, 1, 2004, pp. 259–262
   10. Cryptography and network security by William stallings , 3rd edition, pearson education(page number 37)
   11. G. Blakley, “Safeguarding Cryptographic Keys,” AFIPS ConferenceProceedings, 48, 1979. J Rajasekhar, currently working as Assistant Professor in st.peters engineering college Hyderabad ,University of JNTUH.