PKCS7

File Format
Name	PKCS7
Ontology	Electronic File Formats Security PKCS7
PRONOM	fmt/670

PKCS #7 (PKCS7, Cryptographic Message Syntax Standard) defines standard formats for messages secured using public-key cryptography. S/MIME, a format for secure e-mail messages, is based in part on PKCS7.

As of version 1.5, PKCS7 defines six content types:

• Data
• Signed data
• Enveloped data
• Signed-and-enveloped data
• Digested data
• Encrypted data

See also

• PKCS7 certificate
• PEM

Specifications

• RFC 2315: PKCS #7: Cryptographic Message Syntax, Version 1.5

Software

• OpenSSL