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In a very rare situation I can't log in to my router using public key authentication. I'm using PuTTy 0.63 on client (key stored in pageant), and a Tomato (by Shibby) firmware with a builtin dropbear(v2013.62) on server side.
When this error happens, I see two messages:
On the server's security log: "127.0.0.1 authpriv.warning dropbear[24621]: Pubkey auth bad signature for 'root' with key md5 ..."
In PuTTy window: "Server refused public-key signature despite accepting key!"
In most cases I have no problem with this key pair, but sometimes... in the security log I found three occurance of this failure since last september. I don't know if it is important or not: I'm using wireless connection (WPA2-AES) to my router.
I'm a little bit paranoid ;) What could it be? Bug? Communication problem? Somebody try to crack my connection?
guest
Posted 2015-01-15T12:45:44.143
Reputation: 21
1I am seeing the same thing with PuTTy and dropbear on a different ARM Linux system. Would love to know why. – blueshift – 2015-10-02T05:30:40.327