Visible to the public Image Steganography Method to Achieve Confidentiality Using CAPTCHA for Authentication

TitleImage Steganography Method to Achieve Confidentiality Using CAPTCHA for Authentication
Publication TypeConference Paper
Year of Publication2020
AuthorsKalaichelvi, T., Apuroop, P.
Conference Name2020 5th International Conference on Communication and Electronics Systems (ICCES)
Date PublishedJune 2020
ISBN Number978-1-7281-5371-1
Keywordsachieve confidentiality, authenticated user, authentication, authorisation, CAPTCHA, CAPTCHA codes, captchas, composability, confidentiality, cryptography, data encapsulation, data hiding technique, decoding tools, decryption, decryption mechanism, detective investigation, Encryption, Human Behavior, image, Image coding, image colour analysis, image data, image steganography method, intended receiver, least significant bit, medical fields, police department, pubcrawl, randomized CAPTCHA code, steganography, telecommunication security, user interfaces

Steganography is a data hiding technique, which is generally used to hide the data within a file to avoid detection. It is used in the police department, detective investigation, and medical fields as well as in many more fields. Various techniques have been proposed over the years for Image Steganography and also attackers or hackers have developed many decoding tools to break these techniques to retrieve data. In this paper, CAPTCHA codes are used to ensure that the receiver is the intended receiver and not any machine. Here a randomized CAPTCHA code is created to provide additional security to communicate with the authenticated user and used Image Steganography to achieve confidentiality. For achieving secret and reliable communication, encryption and decryption mechanism is performed; hence a machine cannot decode it using any predefined algorithm. Once a secure connection has been established with the intended receiver, the original message is transmitted using the LSB algorithm, which uses the RGB color spectrum to hide the image data ensuring additional encryption.

Citation Keykalaichelvi_image_2020