Overview and an approach for QR-code based messaging and file sharing on android platform in view of security

The demands of android smart phones and its use has increased rapidly. As a result, the need for competent message and file sharing techniques for android phones has increased. Messaging has emerged as one of the most important feature and applications in mobiles. The existing messaging techniques incorporate the use of the internet and SMS service. Various techniques of message passing and file sharing by using Wi-Fi/Internet through QR code for hiding purpose and maintaining its integrity are developed. This paper presents an overview of the existing techniques of secure message passing and file sharing in android phones. The overview is followed by our suggested approach which incorporates the RSA algorithm which can be used to encrypt and decrypt the message and MD5 algorithm can be used to check its integrity. The suggested approach ratifies the concept to reduce the use of mobile data while sharing of text or other file over the internet.