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Are serial numbers the same for the same product?
SERIAL NUMBER DEFINITION The serial number is another numerical code associated with products. However, each serial number is different for each product and one is assigned to every product. No two items, even if they were manufactured at the same time, will have the same serial numbers.
Does every product have a serial number?
While any product may have a serial number, they are especially common for electronics, such as computers, mobile devices, and audio and video equipment. Because serial numbers are unique, they can be used to identify a specific device. There is no standard format for serial numbers.
What is the difference between a serial number and a business constructed asset number what would make a serial number a better choice?
Answer: the difference between them are: Explanation: Asset Tag is either set by the system while creating an asset and Serial number is a unique identifier provided by the manufacturer of the asset.
Can a serial number be used as a certificate identifier?
Yes it can be used as a unique certificate identifier. As you wrote, the standard ( RFC 5280 obsoletes RFC 2459) indicates [The serial number] MUST be unique for each certificate issued by a given CA. However it also means that when the certificate is renewed the serial number changes since a new certificate is issued by the CA.
Is it OK for one domain to have multiple SSL certificates?
Is it ok for a single domain to have multiple SSL certificates with same DN and validity? Can we include CA related information (serial number, name or id etc) in the attribute of SSL certificate DN? e.g. cn=user001,ou=SSL, ou=001 ,o=DS,c=US.
Can a certificate issuer be used as a unique identifier?
Storing the certificate issuer and serial number. Yes it can be used as a unique certificate identifier. As you wrote, the standard ( RFC 5280 obsoletes RFC 2459) indicates [The serial number] MUST be unique for each certificate issued by a given CA.
Are there any serial numbers that are unique?
You cannot count on a serial number being unique worldwide; in the dream world of X.509, it is the pair issuerDN+serial which is unique worldwide (each CA having its own unique distinguished name, and taking care not to reuse serial numbers).