Difference between revisions of "Openssh client: Invalid key length"

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Message when connecting to a Cisco router:
+
Error message from [[Openssh]] client when connecting to a Cisco router:
 
   [[ssh_dispatch_run_fatal]]: Connection to 10.10.10.4 port 22: [[Invalid key length]]
 
   [[ssh_dispatch_run_fatal]]: Connection to 10.10.10.4 port 22: [[Invalid key length]]
 
Solution:
 
Solution:

Revision as of 10:40, 14 April 2021


Error message from Openssh client when connecting to a Cisco router:

 ssh_dispatch_run_fatal: Connection to 10.10.10.4 port 22: Invalid key length

Solution:

crypto key zeroize rsa‎‎
crypto key generate rsa modulus 2048


OpenSSH 7.6 (2017)

  • Refuse keys <1024 bits in length and improve reporting for keys that do not meet this requirement.


Related terms

See also

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