Question

Digital signatures address all of the following control goals except?

1) Authentication
2) Integrity
3) Confidentiality
4) Non-repudiation

Answer 1

Digital signatures do not inherently address confidentiality; they are used for authentication, integrity, and non-repudiation. Confidentiality is provided by encryption, not digital signatures.

Step-by-step explanation:

Digital signatures are mechanisms used to implement several security controls in digital communications and transactions. They are primarily associated with the following goals:

• Authentication: Verifying the identity of the sender or signatory.
• Integrity: Ensuring the content has not been altered after being signed.
• Confidentiality: Protecting the contents from being accessed by unauthorized parties.
• Non-repudiation: Preventing the signatory from denying the authorship or sending of the message.

Considering the given options, digital signatures do not inherently address Confidentiality. Confidentiality is generally provided by encryption rather than digital signatures. While digital signatures can be used in conjunction with encryption to ensure confidentiality, they themselves do not encrypt or hide the contents of the communication.