[Bug 1630] New: ssh-keygen export of public keys (RFC4716 format) can include too-long lines

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=1630

           Summary: ssh-keygen export of public keys (RFC4716 format) can
                    include too-long lines
           Product: Portable OpenSSH
           Version: 5.1p1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: minor
          Priority: P4
         Component: ssh-keygen
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: tj at castaglia.org


When ssh-keygen -e is used to export a public key into an RFC4716
formatted file, it is possible for the Comment header line to be longer
than the maximum line length required by RFC4716.  For example, I have
seen Comment header lines which exceed the 72-byte line length maximum
(excluding line terminators).

To handle such long Comment (or other header) values, ssh-keygen should
split the header value over multiple lines using the '\' line
continuation character specified in RFC4716.

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