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Sensitive and confidential information is vulnerable to various kinds of misuse when data contained in, or transmitted to / from computer systems they may exposed to passive and / or active threats . Consequently, mechanisms must be provided for the protection of unauthorized access, undetected deletion, modification or insertion of the false information. To meet these requirements cryptographic techniques, must be employed which include, encryption algorithms, that encipher the message (plain text), into unintelligible cipher text, using ciphering key. Decryption algorithm is an inverse...

Industrial Electronics and Drives modelingElements of variable speed drive systems. chopper and Rectifier operation, estimation, and control. Modeling and Control of DC drives. Modeling and Control of induction motors by AC voltage controllers. Frequency controlled induction motor drives. Slip-power controlled wound-rotor induction motor drives. Modeling and motor speed control, PV power system operation, and control.