Security Multiparts for MIME: Multipart/Signed and Multipart/Encrypted
RFC 1847, “Security Multiparts for MIME: Multipart/Signed and Multipart/Encrypted”, is a Proposed Standard document published in October 1995 by J. Galvin, S. Murphy, S. Crocker, N. Freed. The canonical text is published by the RFC Editor.
Abstract
This document defines a framework within which security services may be applied to MIME body parts. [STANDARDS-TRACK] This memo defines a new Simple Mail Transfer Protocol (SMTP) [1] reply code, 521, which one may use to indicate that an Internet host does not accept incoming mail. This memo defines an Experimental Protocol for the Internet community. This memo defines an extension to the SMTP service whereby an interrupted SMTP transaction can be restarted at a later time without having to repeat all of the commands and message content sent prior to the interruption. This memo defines an Experimental Protocol for the Internet community.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 1847 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 1846 SMTP 521 Reply Code
- RFC 1848 MIME Object Security Services
- RFC 1845 SMTP Service Extension for Checkpoint/Restart
- RFC 1844 Multimedia E-mail User Agent Checklist
- RFC 1850 OSPF Version 2 Management Information Base
- RFC 1843 HZ - A Data Format for Exchanging Files of Arbitrarily Mixed Chinese and ASCII characters
- RFC 1851 The ESP Triple DES Transform
- RFC 1842 ASCII Printable Characters-Based Chinese Character Encoding for Internet Messages