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RFC 4262 - X.509 Certificate Extension for Secure/Multipurpose Internet Mail Extensions (S/MIME) Capabilities

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X.509 Certificate Extension for Secure/Multipurpose Internet Mail Extensions (S/MIME) Capabilities (RFC 4262, )

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RFC 4262: X.509 Certificate Extension for Secure/Multipurpose Internet Mail Extensions (S/MIME) Capabilities

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https://datatracker.ietf.org/doc/html/rfc4262

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IETF Datatracker

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This document defines a certificate extension for inclusion of Secure/Multipurpose Internet Mail Extensions (S/MIME) Capabilities in X.509 public key certificates, as defined by RFC 3280. This certificate extension provides an optional method to indicate the cryptographic capabilities of an entity as a complement to the S/MIME Capabilities signed attribute in S/MIME messages according to RFC 3851. [STANDARDS-TRACK]

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