Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	DIFFIE, W., AND HELLMAN, M.E. New directions m cryptology. IEEE Trans. In{orm. Theory IT-22 (Nov 1976), 644-654.
	2	HARDY, G.H., AND WRIGHT, E M An Introductton to the Theory of Numbers. Oxford U. Press, London, 1962.
	3	H. D. Knoble, Algorithm 536: An Efficient One-Way Enciphering Algorithm [Z], ACM Transactions on Mathematical Software (TOMS), v.5 n.1, p.108-111, March 1979  [doi>10.1145/355815.355823]
	4	KNOBLE, H.D. Subroutine Purdy, A re-enterable IBM 360/370 system subprogram for enciphermg 64-bit passwords. SHARE Library Program number 360D 01 0.010, SHARE Program Library Agency, Triangle Univ. Computation Center, P.O Box 12076, Research Triangle Park, N C 27709, Aug 1976.
	5	Donald E. Knuth, The art of computer programming, volume 2 (3rd ed.): seminumerical algorithms, Addison-Wesley Longman Publishing Co., Inc., Boston, MA, 1997
	6	National Bureau of Standards Encryptlon algorithm for computer data protection. Federal RegLster 40 (March 17, 1975), 12134-12138
	7	George B. Purdy, A high security log-in procedure, Communications of the ACM, v.17 n.8, p.442-445, Aug. 1974  [doi>10.1145/361082.361089]
	8	R. L. Rivest , A. Shamir , L. Adleman, A method for obtaining digital signatures and public-key cryptosystems, Communications of the ACM, v.21 n.2, p.120-126, Feb. 1978  [doi>10.1145/359340.359342]
	9	SELFRIDGE, J.L, AND WUNDERLmH, M C. An efficient algorithm for testing large numbers for primahty Proc of the 4th Manitoba Conf. on Numerical Mathematics, U. of Manitoba, Winnipeg, pp. 109-120, 1974.
	10	TUCHMAN, W L Encryption techmques and their implementation SHARE Proc., SHARE, Inc., Chmago, Vol. 1, pp. 447-458, Aug. 1975

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