[Bug 1853] New: sshd doesn't seem to be able to auth a user using an rsa key of 20000 bit

bugzilla-daemon at bugzilla.mindrot.org bugzilla-daemon at bugzilla.mindrot.org
Sat Feb 5 00:28:10 EST 2011


https://bugzilla.mindrot.org/show_bug.cgi?id=1853

           Summary: sshd doesn't seem to be able to auth a user using an
                    rsa key of 20000 bit
           Product: Portable OpenSSH
           Version: 5.7p1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: sshd
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: db.pub.mail at gmail.com


sshd doesn't seem to be able to auth a user using an rsa key of 20000
bit.

1. I generated an ssh rsa key like this:
    ssh-keygen  -t rsa -b 20000

2. I placed the public key into another users authorized_keys file

3. I tried to ssh that user.

What happens: 
   4. "Feb  4 23:35:50 ABOX sshd[17138]: error: RSA_public_decrypt
failed: error:04067069:lib(4):func(103):reason(105)"

What should happen:
   4. Accepted publickey for .... 



------
Use cases:
1. having an ssh key over 9000. "00:18 < Kenny> Yes, so will I, for
security-measures based on DragonBall Z memes. ;)"

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