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What is subjectAltName certificate?
The Subject Alternative Name Field Explained The Subject Alternative Name field lets you specify additional host names (sites, IP addresses, common names, etc.) to be protected by a single SSL Certificate, such as a Multi-Domain (SAN) or Extend Validation Multi-Domain Certificate. Background.
What is subjectAltName OpenSSL?
subjectAltName specifies additional subject identities, but for host names (and everything else defined for subjectAltName) : subjectAltName must always be used (RFC 3280 4.2. 1.7, 1. So if you set subjectAltName, you have to use it for all host names, email addresses, etc., not just the “additional” ones.
What is a CSR person?
Corporate social responsibility managers work with companies in their efforts to positively impact their community and beyond, either as a full-time employee or a hired consultant. …
How to find an IP address in subjectAltName?
Whenever a user inputs the identity of an Internet host, it SHOULD be possible to enter either (1) a host domain name or (2) an IP address in dotted-decimal (“#.#.#.#”) form. The host SHOULD check the string syntactically for a dotted-decimal number before looking it up in the Domain Name System.
Where to find X509 subject alternative name IP address?
X509 subject alternative name (subjectAltName) IP address field. X509v3 can contain IP address field in subject Alternative Name extension.
What does the subject alternative name ( San ) mean?
The Subject Alternative Name (SAN) is an extension the X.509 specification. The specification allows to specify additional additional values for a SSL certificate. These values added to a SSL certificate via the subjectAltName field. A SSL certificate with SAN values usually called the SAN certificate.
Is the subject alternative name bound to the public key?
Because the subject alternative name is considered to be definitively bound to the public key, all parts of the subject alternative name MUST be verified by the CA. So if you submit a request to a public CA with, for example, a private RFC 1918 IP address (10.1.2.3), they should decline to sign that request.