Secure Multipurpose Internet Mail Extensions

nouncandidate·updated May 9, 2026

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Provides cryptographic security services for electronic messaging applications: authentication, message integrity and non-repudiation of origin (using digital signatures) and privacy and data security (using encryption) to provide a consistent way to send and receive MIME data. (RFC 2311)

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§1: Provides cryptographic security services for electronic messaging applications: authentication, message integrity and non-repudiation of origin (using digital signatures) and privacy and data security (using encryption) to provide a consistent way to send and receive MIME data. (RFC 2311)