https://bugzilla.mindrot.org/show_bug.cgi?id=3831 Bug ID: 3831 Summary: Invalid key length Product: Portable OpenSSH Version: 9.2p1 Hardware: amd64 OS: Linux Status: NEW Severity: enhancement Priority: P5 Component: ssh Assignee: unassigned-bugs at mindrot.org Reporter: oriondecarvalho at gmail.com ssh root at ciscoAsr1002 ssh_dispatch_run_fatal: Connection to ciscoAsr1002: Invalid key length how to connect? I need conncect to a rsa 768 size length ssh -oRequiredRSASize=768 root at ciscoAsr1002 ssh_dispatch_run_fatal: Connection to ciscoAsr1002: Invalid key length -- You are receiving this mail because: You are watching the assignee of the bug.
https://bugzilla.mindrot.org/show_bug.cgi?id=3831 Darren Tucker <dtucker at dtucker.net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dtucker at dtucker.net Status|NEW |RESOLVED Resolution|--- |INVALID --- Comment #1 from Darren Tucker <dtucker at dtucker.net> --- Stock OpenSSH has not supported keys less that 1024 bits since OpenSSH 7.6 (specifically commit bd636f409) in 2017. This is a compile-time constant so if you want you can build a modified OpenSSH by changing this line: $ grep RSA_MIN *.h sshkey.h:#define SSH_RSA_MINIMUM_MODULUS_SIZE 1024 (In reply to Orion Alves from comment #0) [...]> ssh -oRequiredRSASize=768 root at ciscoAsr1002Stock OpenSSH has no such option. If you are using a vendor-modified OpenSSH then you need to report any problems with it to them. -- You are receiving this mail because: You are watching the assignee of the bug. You are watching someone on the CC list of the bug.