R. Rajashree's research while affiliated with GKM College of Engineering and Technology and other places

In India almost all the peoples are using Liquefied Petroleum Gas (LPG) as a fuel for cooking. But in this field the steps taken for safety purpose is very less. LPG is flammable gas, it has the potential to cause fire accidents heavily. In order to avoid fire accident, many researchers are applied their effort to design new prototype model. IoT based gas leakage detection and monitor system uses different sensors and gas knob to avoid the fire accident in the kitchen. It will acquire input from the sensor and control the gas knob automatically either from High ignition to Medium or from Medium to Low. Gas leakage and presents of moisture will enable the DC motor to rotate the gas stove knob automatically to stop the gas flow in the gas stove. If gas leakage is detected then it will be intimated to the end user by using pushing box option in the cloud environment. The proposed model also enables the user to analysis the usage of gas throughout the year.

Security has become one of the important fields of concern when the scenario of information transport is viewed. Cryptology is a traditional technique that hides the message by encoding it. Nevertheless, now it is not only demanded that the data that is being transmitted is encoded, but the very existence of knowledge of data transmission should be concealed. Steganography is thus a technique where the data are not only encoded, but hidden within a carrier. This therefore provides a two-level security. The proposed paper describes a highly secured steganography technique using DNA sequence. The report suggests a technique of hiding an image in an image using DNA sequence.

A Mobile Adhoc Network (MANET) consists of numerous number of nodes, neighbor nodes are connected by means of radio links. Each node is constrained with limited power, bandwidth and scalability. Many researchers lay their effort to develop various techniques for providing a secure route in MANET. As a result, an Elliptic Curve Cryptography (ECC) technique is used to develop a secure shortest algorithm for routing the packet from source node to destination node, since ECC is famous due to its shorter key length and less computational overhead for encryption and decryption operation. ECC is more suitable for power constrained devices. But ECC based secure routing protocol requires a large number of Route Request (RREQ) packet in Adhoc on Demand Distance Vector (AODV) protocol and consumes more power. In order to reduce the number of RREQ packet and power consumption, a proposed secure energy efficient routing protocol is implemented. Finally, discuss the improvement of the proposed approach with the existing systems using GloMoSim software tool.

Background/Objectives: The terrorism threat caused by terrorist who posses forged passport and identities due to insecure environment which could be more serious imminent. Traditional scheme and techniques available to protect the information from unauthorized user is not enough for the current environment. Methods/Statistical Analysis: So, a hybrid multilevel DNA computing based Color Code Cryptographic scheme combined with Elliptic Curve Cryptography is proposed to protect the passport data from the eavesdropper. Proposed data encryption algorithm consists of two level of security, first level of security is provided by convert the personal details (Plain Text) of the customer into Unicode and RGB color code and then map the color code with DNA nucleotide. The mapped DNA molecules converted into ASCII values for encryption process. DNA molecules help to store enormous amount of data intended to allow more number of user to access the system. Second level of security is provided by encrypt the ASCII values using Elliptic Curve Cryptography techniques which require very less key size compared with traditional schemes. Resultant Cipher Text is hidden in the personal image of the customer using LSB steganographic method. Findings: Compared with traditional scheme, proposed scheme provides multilevel of security with less communication and computational overhead due to its lesser key size. ECC-80 bit key size based encryption scheme provides same level of security as RSA-1024 scheme with less number of operations involved in the passport verification system. Applications/Improvements: Since the proposed scheme require very less key size, consumes very less power, it will be more suitable for power constrained devices such as smart card, sensors, mobile phones, PDA's, RFID tags, etc.

The privacy is the main concern in the present days and especially in biometrics verification of passport using individual's personal data. Many researchers have put forward various solutions for biometric verification system. The existing visual cryptographic scheme for biometric verification system provides security to the face image present in the biometric template during the storage and transmission of data. The proposed hybrid architecture employs the advantages of visual cryptography and steganography for passport verification. It extends the privacy to the image as well as the personal information with less communication complexity. It also provides greater level of security.