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National Physical Laboratory India has developed a cesium atomic fountain frequency standard. The fountain has now become operational and is ready for complete frequency evaluation. In this paper, we report for the first time, the preliminary results obtained with this fountain, which include Ramsey fringes, frequency stability analysis, with an H-maser, and magnetic field mapping in the atomic flight region.

The ever increasing technologies with parallel advancements in the development of notorious attempts, to play with the integrity of the information, in the field of communication over the internet present the need for the equally enhancing security measures. We here, try to analyze the security steps and related phenomena which have been developed specific to the symmetric cryptosystems. With the application of different protocols and their related drawbacks, we try to introduce a few changes, if possible, without diminishing the essence of such protocols. Our attempt is to look for the possibility of introducing asymmetric cryptosystem security measures to meet our purpose. The works already being done are a source of reference to invoke something inquisitive towards our topic. Such works include techniques such as key management, magic rectangle, hash functions, encrypted key exchange, etc.