S/MIME

E37201

IETF standard cryptographic protocol email security standard

S/MIME is a widely used standard for secure email that provides encryption and digital signatures using public key cryptography.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (16)

Label	Occurrences
S/MIME canonical	17
Secure/Multipurpose Internet Mail Extensions	3
S/MIME Version 3.2	2
CMS (Cryptographic Message Syntax)	1
IETF Cryptographic Message Syntax	1
S/MIME Version 3.1	1
S/MIME Version 4.0	1
S/MIME Working Group	1
S/MIME media types	1
S/MIME message format	1
S/MIME security services	1
S/MIME v3	1
S/MIME v3.1	1
S/MIME v4.0	1
Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.2 Message Specification	1
Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message Specification	1

Statements (50)

Predicate	Object
instanceOf	IETF standard ⓘ cryptographic protocol ⓘ email security standard ⓘ
basedOn	MIME ⓘ
compatibleWith	IMAP ⓘ POP3 ⓘ SMTP ⓘ
competesWith	PGP ⓘ surface form: OpenPGP
definedIn	RFC 5751 ⓘ RFC 8551 ⓘ
extends	MIME ⓘ
fullName	S/MIME self-linksurface differs ⓘ surface form: Secure/Multipurpose Internet Mail Extensions
goal	authenticity of sender ⓘ confidentiality of email ⓘ integrity of email ⓘ interoperable secure email ⓘ
operatesAt	application layer ⓘ
protects	email attachments ⓘ email message body ⓘ
provides	digital signatures ⓘ email encryption ⓘ message authentication ⓘ message integrity ⓘ non-repudiation ⓘ
requires	X.509 certificates ⓘ surface form: Public Key Infrastructure trusted Certificate Authorities ⓘ
standardizedBy	Internet Engineering Task Force ⓘ surface form: IETF
supportedBy	Mail ⓘ surface form: Apple Mail Outlook ⓘ surface form: Microsoft Outlook Thunderbird email client ⓘ surface form: Mozilla Thunderbird many mobile email clients ⓘ
supports	certificate chains ⓘ certificate revocation lists ⓘ certificate-based authentication ⓘ end-to-end email encryption ⓘ key management via certificates ⓘ signing of email messages ⓘ
usedIn	commercial email clients ⓘ corporate email systems ⓘ government email systems ⓘ
uses	S/MIME self-linksurface differs ⓘ surface form: CMS (Cryptographic Message Syntax) PKCS #7 ⓘ X.509 certificates ⓘ asymmetric encryption for key exchange ⓘ hash functions for signatures ⓘ public key cryptography ⓘ symmetric encryption for message content ⓘ
version	S/MIME self-linksurface differs ⓘ surface form: S/MIME v3 S/MIME self-linksurface differs ⓘ surface form: S/MIME v3.1 S/MIME self-linksurface differs ⓘ surface form: S/MIME v4.0

Referenced by (35)

Full triples — surface form annotated when it differs from this entity's canonical label.

RSA → usedInProtocol → S/MIME ⓘ

X.509 certificates → usedInProtocol → S/MIME ⓘ

subject surface form: X.509 certificate

PKCS #1 → usedIn → S/MIME ⓘ

RFC 8017 → relatedTo → S/MIME ⓘ

S/MIME → fullName → S/MIME self-linksurface differs ⓘ

this entity surface form: Secure/Multipurpose Internet Mail Extensions

S/MIME → uses → S/MIME self-linksurface differs ⓘ

this entity surface form: CMS (Cryptographic Message Syntax)

S/MIME → version → S/MIME self-linksurface differs ⓘ

this entity surface form: S/MIME v3

S/MIME → version → S/MIME self-linksurface differs ⓘ

this entity surface form: S/MIME v3.1

S/MIME → version → S/MIME self-linksurface differs ⓘ

this entity surface form: S/MIME v4.0

ASN.1 → usedIn → S/MIME ⓘ

GNU Privacy Guard → supportsStandard → S/MIME ⓘ

Werner Koch → supportsStandard → S/MIME ⓘ

RC2 → usedIn → S/MIME ⓘ

RFC 8551 → title → S/MIME ⓘ

this entity surface form: Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message Specification

RFC 8551 → protocolSpecified → S/MIME ⓘ

RFC 8551 → specifiesVersion → S/MIME ⓘ

this entity surface form: S/MIME Version 4.0

RFC 8551 → defines → S/MIME ⓘ

this entity surface form: S/MIME message format

RFC 8551 → defines → S/MIME ⓘ

this entity surface form: S/MIME security services

RFC 8551 → defines → S/MIME ⓘ

this entity surface form: S/MIME media types

RFC 8551 → relatedTo → S/MIME ⓘ

this entity surface form: S/MIME Version 3.2

OpenSSL → implementsStandard → S/MIME ⓘ

PKCS #7 → basisFor → S/MIME ⓘ

PKCS #7 → influenced → S/MIME ⓘ

this entity surface form: IETF Cryptographic Message Syntax

RFC 5751 → title → S/MIME ⓘ

this entity surface form: Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.2 Message Specification

RFC 5751 → abbreviation → S/MIME ⓘ

this entity surface form: S/MIME Version 3.2

RFC 5751 → protocolSpecified → S/MIME ⓘ

this entity surface form: Secure/Multipurpose Internet Mail Extensions

RFC 5751 → protocolAbbreviation → S/MIME ⓘ

RFC 5751 → updates → S/MIME ⓘ

this entity surface form: S/MIME Version 3.1

RFC 5751 → workingGroup → S/MIME ⓘ

this entity surface form: S/MIME Working Group

RFC 5751 → topic → S/MIME ⓘ

this entity surface form: Secure/Multipurpose Internet Mail Extensions

gpgsm → implements → S/MIME ⓘ

gpgsm → supportsStandard → S/MIME ⓘ

Gpg4win → supportsStandard → S/MIME ⓘ

Gpg4win → implementsProtocol → S/MIME ⓘ

Mozilla Messaging → supportsStandard → S/MIME ⓘ