Alles digital? Von wegen! Die gute alte Postkarte ist beliebt wie eh und je. Zumindest in den schönsten Wochen des Jahres. Einer aktuellen Studie* der L’TUR Tourismus AG zufolge senden drei von vier Deutschen Grüße aus dem Urlaub – die weitaus meisten auf dem traditionellen Weg. Denn wie die repräsentative Erhebung zeigt, sind Postkarten für 78 Prozent der Reisenden eindeutig die erste Wahl, wenn es um das Übermitteln von Urlaubsgrüßen geht.
Steganography is going to gain its importance due to the exponential growth and secret communication of potential computer users over the internet [5]. It can also be defined as the study of invisible communication that usually deals with the ways of hiding the existence of the communicated message. Generally data embedding is achieved in communication, image, text, voice or multimedia content for copyright, military communication, authentication and many other purposes [2]. In image Steganography, secret communication is achieved to embed a message into cover image (used as the carrier to embed message into) and generate a stego- image (generated image which is carrying a hidden message)[1]. In this paper we have critically analyzed various steganographic techniques and also have covered steganography overview its major types, classification, applications [3]. KEYWORDS: STEGANOGRAPHY, STEGO IMAGE, COVER IMAGE, LSB
Iris recognition is considered to be the most reliable and accurate biometric identification system available. Iris recognition system captures an image of an individual person’s eye, than the image of iris is meant for the further segmentation and normalization for extracting its feature.Segmentation is used for the localization of the correct iris region in the particular portion of an eye and it should be done accurately and correctly to remove the eyelids, eyelashes, reflection and pupil noises present in iris region. The features of the iris were encoded by convolving the normalize iris region with 1D Log-Gabor filters and phase quantizing the output in order to produce a bit-wise biometric template. The Hamming distance was chosen as a matching metric, which gave the measure of how many bits disagreed between the templates of the iris.
Sun Microsystems defined a set of specifications for a subset of Java technology to create applications for them, Java Card applets. A device that supports these specifications is referred to as a Java Card platform. On a Java Card platform, multiple applications from different vendors can coexist securely. The Java Card platform is the tiniest of Java targeted for embedded devices. It is an open, interoperable platform for smart cards and secure tokens. The technology is widely used in SIM cards (it's used in GSM mobile phones) and ATM cards. Java Card gives users the ability to program a device and make it application specific and lets smart card developers use a common card platform. Smart cards, unlike magnetic stripe cards, can carry all necessary functions and information on the card; therefore, they do not require access to remote databases at the time of the transaction.