Exam CAS-005 topic 1 question 32 discussion

Why the other options are less suitable: B. E-signature: An electronic signature is a visible and verifiable signature used for authentication and validation of a document. It doesn't hide ownership but instead provides clear identification and verification. C. Watermarking: Watermarking typically involves adding visible or semi-visible marks on a document that signify ownership. While it provides copyright protection, it's not covert since it can often be seen. D. Cryptography: Cryptography involves securing data, but it's generally used to protect the integrity and confidentiality of a document, not to covertly indicate ownership.

The best option for embedding a sign of ownership covertly inside a proprietary document without adding any identifying attributes would be: A. Steganography Steganography is the practice of hiding data (such as a sign of ownership or a copyright mark) inside a file or document in a way that is not easily detectable. This method allows the owner to embed a covert mark of ownership that is hidden within the document, thus providing protection without revealing any visible identifying attributes.