The document provides definitions related to X509 certificates, including the serial number and validity period. A serial number is a unique identifier assigned by the issuer to differentiate a certificate from others, with a valid range between 1 and 2147483647. The validity period is the number of days a certificate is valid from its issuance date, with a maximum of 20 years for certificates issued by the Certification Assistant.
documents/EFTA00289904.pdf
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