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Phishing is one of the most common attacks on the networks today and a primary enabler for fraud and identity theft, and the increasing sophistication of the phishers makes it very difficult for users to distinguish between genuine and fake. Thus, it is important to mutually authenticate each other. The mutual authentication between two entities is essential to establish a secure link over public/closed insecure networks. This paper gives an overview of proposed secure authentication system which includes the authentication server, one-time password generator, and database server. The system achieves mutual authentication by exchanging two one-time password (OTP) where OTP is a security mechanism, will be expired after single use/ some period of time and provides several advantages with respect to most of the available solutions at the state of the art. First, it enables transparent mutual authentication between two entities. Moreover, it guarantees authenticity of both entities within the same session. Finally, the proposed system ensures secure data transmission and protected access between two entities as well as to prevent from known attacks.

This study highlights the medico-ethono botanical information interviewed from Nilgin tribes. The results of this study brought forth 41 medicinal applications involving 34 plants that have been found incorporated into their traditional therapeutic relam of herbal cure for various common ailments the observations are discussed in the light of cross-cltural perspective among nilgiri abongies.

Ethanolic extracts of Ailanthus exceisa (AE). Toddalia asiatica (TA) and Araucaria bidwilli (AB) were screened by the anti-pyretic activity in yeast induced hyperthermic test model in the laboratory. Dose of AE (100), TA (60) and AB (30) mg., equivalent of the plant material per kg. Body weight of the extracts were administered orally to the female albino rats. Acute toxicity and preliminary phytochemical screening were conducted for all the extracts. LD 50 values on oral administration of the extracts were found to be AE (1000), AB (350) and TA (250) mg. per kg. body weight respectively. Both the root and aerial part fractions of TA displayed a pronounced anti-pyretic activity comparable to the standard drug paracetamol. AB oleoresin fraction was also found to show anti-pyretic effect. These observations however, confirm the folk-medical practices still prevailing among the tribes.

Leaf and oleoresin fractions of both alcoholic and petroleum ether extracts of Araucaria bidwillii exhibited significant prolongation of pentobarbitones sleeping time at a dose of 300 and 100 mg/kg body weight respectively in mice. This effect is more pronounced for oleoresin than the leaf extracts. Further, the two extracts seem to possess analgesic effect comparable to aspirin by writing method. The analgesic activity is found to be higher in oleoresin than the leaf extracts. Both the extracts are found to show high anti inflammatory activity comparable to phenylbutzaone by cotton pellet granuloma method.

The present report deals with 34 plants of ethno botanical significance used s food and medicine by the Kotas of Nilgiri District, Tamil Nadu. Dietary and medicinal applications of plants re briefly summarized and presented.

The roots of Dalbergia horrida yielded two new isoflavanones, Dalhorridin (I) - 5,5'-dihydroxy-3',4'-methylenedioxy-5''-prenyl-6'',6''-dimethyl-dihydropyrano(2'',3'' : 7,8)-isoflavanone and Dalhorridinin (II) - 5,7,5'-trihydroxy-3',4'-methylenedioxy-8-[5-methyl-2-(2-hydroxyisopropyl)-1,4-hexadienyl]isoflavanone along with two known isoflavones, Dalspinin and Dalspinosin. Preliminary biological screening of the enriched extract revealed that it showed analgesic, anti-inflammatory, CNS depressant and mild anti-bacterial properties.

The present communication deals with a valuable plant Mahonia leschenaultia used by the Todas of Nilgiris in their religious and medical practices.