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This paper investigated the availability of multimedia instructional technologies for entrepreneurship training of Office Technology and Management (OTM) students of polytechnics in South-East Nigeria. One research question was posed and one corresponding null hypothesis formulated for testing at 0.05 level of significance.Descriptive survey research design was adopted for the study and 86 Office Technology and Management (OTM) lecturers in both Federal- and State-owned polytechnics in South-East, Nigeria that offer entrepreneurship courses were studied without sampling. A structured questionnaire was used for data collection. The reliability of the instrument was established though trial-testing and calculation using Cronbach alpha method that yielded a correlation coefficient of 0.78. Data collected were analyzed using frequency count and percentages, mean, standard deviation, Chi-square and t-test. The results showed that majority (56%) of multimedia instructional technologies were not available in OTM departments for entrepreneurship training of OTM students. The findings also revealed that ownership of the institutions was not a significant factor on the availability of audio, visual and audio-visual instructional technologies for entrepreneurship training of OTM students in polytechnics in South-East Nigeria. Based on the findings, the researcher concluded that OTM students in polytechnics in South East Nigeria were taught entrepreneurship without necessary and required multimedia instructional technologies and this affected their entrepreneurship success upon graduation. It was recommended among others that Federal and State governments should support polytechnics in Nigeria to procure multimedia instructional technologies since their acquisition is cost intensive and cannot be procured by OTM Departments of the institutions.

In this paper, we propose a new asymmetric cryptographic algorithm (HOOD CRYPT) based on the Elliptical Curve Cryptographic approach. The algorithm describes how an orthogonal frequency division multiplexing (OFDM) based RF wireless system can be encrypted using planner matrix Elliptical Curve Cryptography (ECC). The newly described asymmetric algorithm can be applied to the OFDM transmission scheme in the design of more robust and secure cryptography in portable wireless devices. An analysis of the proposed algorithm is made using the discrete logarithm approach. Two methods, namely, Pollard's rho Attack and Index Calculus are investigated with respect to the new algorithm. We found that our method makes it even more difficult to break the ECC encryption.