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A unique local address (ULA) is an Internet Protocol version 6 (IPv6) address in the address range fc00:: / 7. [1] These addresses are non-globally reachable [2] (routable only within the scope of private networks, but not the global IPv6 Internet).
The newest version of CMS (as of 2024) is specified in RFC 5652 (but also see RFC 5911 for updated ASN.1 modules conforming to ASN.1 2002 and RFC 8933 and RFC 9629 for updates to the standard). The architecture of CMS is built around certificate-based key management, such as the profile defined by the PKIX working group .
[79] [80] This practice of publishing April Fool's Day RFCs is specifically acknowledged in the instructions memo for RFC authors, with a tongue-in-cheek note saying: "Note that in past years the RFC Editor has sometimes published serious documents with April 1 dates. Readers who cannot distinguish satire by reading the text may have a future ...
The TLSA record matches the certificate of the root CA, or one of the intermediate CAs, of the certificate in use by the service. The certification path must be valid up to the matching certificate, but there is no need for a trusted root-CA. A value of 3 is for what is commonly called domain issued certificate (and DANE-EE). The TLSA record ...
When a certificate is issued, it can be stated in its attributes what use cases it is intended to fulfill. For example, a certificate can be issued for digital signature of e-mail (aka S/MIME), encryption of data, authentication (e.g. of a Web server, as when one uses HTTPS) or further issuance of certificates (delegation of authority ...
The Federal Taxpayer Registry (Spanish: Registro Federal de Contribuyentes, RFC), also known as RFC number, is a tax identification number required by any physical or natural person or moral or juridical person (legal entity) in Mexico to carry out any lawful economic activity for which they are obliged to pay taxes, with some exceptions.
Similarly to the Certificate Management Protocol (CMP), it can be used for obtaining X.509 digital certificates in a public key infrastructure (PKI). CMS is one of two protocols utilizing the Certificate Request Message Format (CRMF), described in RFC 4211 , with the other protocol being CMP.
The authorization certificate works in conjunction with a public key certificate (PKC). While the PKC is issued by a certificate authority (CA) and is used as a proof of identity of its holder like a passport, the authorization certificate is issued by an attribute authority (AA) and is used to characterize or entitle its holder like a visa ...