Title: FTP Security Extensions
Author(s): M. Horowitz, S. Lunt.
Status: PROPOSED STANDARD
Date: Oct 1997
Length: 58733
Updates: RFC959
This document defines extensions to the FTP specification STD 9, RFC959, "FILE TRANSFER PROTOCOL (FTP)" (October 1985). These extensions provide strong authentication, integrity, and confidentiality on both the control and data channels with the introduction of new optional commands, replies, and file transfer encodings.
The following new optional commands are introduced in this specification:
AUTH (Authentication/Security Mechanism),
ADAT (Authentication/Security Data),
PROT (Data Channel Protection Level),
PBSZ (Protection Buffer Size),
CCC (Clear Command Channel),
MIC (Integrity Protected Command),
CONF (Confidentiality Protected Command), and
ENC (Privacy Protected Command).
A new class of reply types (6yz) is also introduced for protected replies.
None of the above commands are required to be implemented, but interdependencies exist. These dependencies are documented with the commands.
Note that this specification is compatible with STD 9, RFC959.
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