A software publisher has acquired a new digital certificate for signing applications. Which extension is recommended to show that a certificate supports signing programs so that end users trust future updates?
The Extended Key Usage (EKU) extension defines the certificate's permitted uses, such as code signing.Key Encipherment addresses encryption of session keys, so it does not indicate signing capabilities. Authority Key Identifier provides a reference to the issuer’s key. Common Name details help identify the certificate’s subject but do not define specialized usage. The field that indicates software signing remains the option that designates a signing function.
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What is the function of the Extended Key Usage (EKU) extension in a certificate?
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Why is Key Encipherment not suitable for signing software?
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What is the role of the Authority Key Identifier in a certificate?