[Bug 3322] New: Switch SSHFP default digest to SHA256

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Sat Jun 19 02:12:18 AEST 2021


https://bugzilla.mindrot.org/show_bug.cgi?id=3322

            Bug ID: 3322
           Summary: Switch SSHFP default digest to SHA256
           Product: Portable OpenSSH
           Version: 8.6p1
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: dbelyavs at redhat.com

OpenSSH uses SHA1 as a default digest for SSHFP records for RSA/DSA
algorithms.

RFC 6594 permits using much more secure SHA256 algorithm with SSHFP
records. SHA256 is already default digest for Ed25519 and ECDSA SSHFP
records.

The straightforward PR:

https://github.com/openssh/openssh-portable/pull/259

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