A software company wants to ensure that files downloaded by users have not been tampered with. They decide to publish a cryptographic value alongside each file, allowing users to verify the integrity of the downloaded file. What method is the company employing?
Steganography
Hashing
Encryption
Obfuscation
The company is using hashing to generate a unique cryptographic value (hash) for each file. Users can hash the downloaded file using the same algorithm and compare it to the published hash. If the values match, it confirms the file has not been altered, ensuring data integrity. Encryption focuses on confidentiality, steganography hides data within other data, and obfuscation makes data harder to interpret—none of which directly verify file integrity.
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