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3 articles for “covert communication”
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Font-Based Text Steganography for Covert Communication in Devanagari Script: A Review (2020–2026)
Abstract: Steganography hides the fact that a communication exists rather than merely safeguarding its content. Text is the most challenging of all steganographic media because it contains the least redundancy and is the most sensitive to changes. Devanagari script, with its conjunct consonants, ligatures, matras, and non-linear glyph construction, makes these difficulties even harder, rendering rendering-dependent and OCR- based steganographic methods largely ineffective. This paper presents a systematic review of text …
Published in Emerging Trends in Languages · Vol. 3, Issue 2, 2026 · pp. 22–33 Read article
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A Survey on Audio Steganography and Audio Cryptography
Abstract: AbstractReliably secure mechanisms are required to protect most untold and blueprint of defense information against vulnerabilities like ID spoofing and unauthorized access to the top most system of a country because of secured access to the Internet and data resources has a high impact in the defense system. For this purpose techniques related to Cryptography and digital Watermarking have been mostly used. For embedding information into objects such as images, …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 64–68 Read article
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Internet of Things: Threats and Security
Abstract: Security is the most important in today’s world as we have personal and confidential data which we do not want to share with anyone, but somehow attackers attack on our data and steal our identity. Same happens in IoT, attackers somehow attack on devices or communication channels and steal the data. This study reviews all the threats and security issues in IoT. Nowadays, devices are made in such a way …
Published in Current Trends in Information Technology · Vol. 12, Issue 2, 2022 · pp. 7–11 Read article