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...Issn online print international journal of innovative research in science engineering and technology an iso certified organization website www ijirset com vol issue february steganography cryptography watermarking a review suraj kumar dubey vivek chandra phd scholar department computer mats university raipur chhattisgarh india professor electrical electronics csit durg abstract this digital era it is simple to produce create multiple copies the data which can either be text audio image softwares etc creates problem concerning protection intellectual production rights may solved by information hiding techniques that hides important paper presents overview basics concludes with application areas keywords i introduction act protecting from any inadvertent change also defined as process details object common use hide so if changed restricted small subset total helps prevent programmers intentionally or unintentionally changing parts program are categorized three main categories shown figur...