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In cryptography, S‐boxes play an important role in symmetric ciphers. S‐boxes are used for substitution process to enable diffusion in encryption and decryption of the messages. In most of the conventional and modern symmetric ciphers, the S‐boxes are of static in nature. It will never depend or vary with respect to the message or the key, but dynamic S‐boxes are more resistant to linear and differential...
In present days, Authentication by means of biometrics systems is used for personal verifications. In spite of having existing technology in biometrics such as recognizing the fingerprints, voice/face recognition etc., the vein patterns can be used for the personal identification. Finger vein is a promising biometric pattern for personal identification and authentication in terms of its security and...
Optical Character Recognition systems have been effectively developed for the recognizing the printed characters of many non-Indian languages like English, Chinese. At early stages few research works were carried out for recognizing the handwritten characters and now varies efforts are on the way for the development of efficient systems for recognizing the Indian languages, especially for Tamil, a...
This paper presents eight class rotated objects recognition by employment of supervised feedforward neural network (FFNN). The process consists of two parts. First, segmentation of the binary edge object from the colored image is carried out. The binary edge image is rotated at the center of the image from 0 degree to 360 degree by every 5 degree rotation. The invariance features are extracted by...
In this paper, the methods and experimental results of rotated irregular shaped edge objects from still images and recognition by supervised artificial neural network of irregular shapes (ANN) are discussed. The edge images are obtained during pre-processing stage from the input coloured images. The objects in the edge images are rotated by every 5° from 0° up to 355°. The rotated edge images are...
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