A user digitally signs a contract before emailing it to a colleague. Which security concept is primarily upheld by ensuring the document was not altered during transit?
Authorization
Confidentiality
Integrity
Availability
A digital signature is a cryptographic mechanism used to verify the authenticity and integrity of a digital message or document. In this scenario, the primary goal is to ensure the contract has not been changed, which directly relates to the concept of integrity. Integrity guarantees that the data is accurate and has not been tampered with. Confidentiality involves preventing unauthorized disclosure of information, availability ensures that systems and data are accessible when needed, and authorization deals with granting permissions to resources. While a digital signature also provides non-repudiation, the specific function of preventing alteration is integrity.
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