Browsing by Author "Kavitha"
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Item E - Fraud Prevention Based on the Self Authentication of E - Documents(2016-07-13T07:26:17Z) Kavitha; Mythra, C; Shana, MaladkarWe consider a method for preventing e-Fraud in which a binary image is encrypted with a cipher using a convolution operation and the output quantized into a 1-bit array generating a binary image cipher text. The output is then ‘embedded’ in a host image to hide the encrypted information. Embedding is undertaken either in the lowest 1-bit layer or multiple 1-bit layers. Decryption is accomplished by: (i) extracting the binary image from the host image; (ii) correlating the result with the original cipher. In this principle, there is a problem that if the admin sends the file which has size greater than the image size there will be distortion in the received file of client side. So we are enhancing the existing project with video steganography. The video steganography deals with data security in which secret data is embedded in cover video. A methodology for creation of a stego video is defined using the MD5 algorithm. The secret data to be hidden is broken up it into fixed length output of 128 bits. The input message is broken up into chunks of 512 bit blocks (sixteen 32 bit words),the message is padded so that its length is divisible by 512. Thus it becomes very difficult for an intruder to guess that data is hidden in the video and the purpose of data security can be achieved.Item Unit 1(2017-05-18T14:18:01Z) KavithaItem Unit 1 & 2(2017-05-16T10:26:59Z) KavithaItem Unit 1 & 2(2017-05-16T10:05:33Z) KavithaItem Unit 3(2017-05-16T10:27:31Z) KavithaItem Unit 3(2017-05-18T14:19:34Z) KavithaItem Unit 3 & 4(2017-05-16T10:06:15Z) KavithaItem Unit 5(2017-05-16T10:28:04Z) KavithaItem Unit 6(2017-05-16T10:28:43Z) KavithaItem Unit 8(2017-05-16T10:29:11Z) Kavitha