Hi, I am trying to debug why, when I use 1024 size RSA keys, ssh from client fails. The keys are copied fine. Permissions looks good. 2048 to 8192 sized keys work fine. I tried enabling logs, however, I am not able to understand the below error. Attaching sshd_config and snipped log files. auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug1: Client protocol version 2.0; client software version OpenSSH_7.2p2 Ubuntu-4ubuntu2.8 auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu2.8 pat OpenSSH* compat 0x04000000 auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug1: Local version string SSH-2.0-OpenSSH_7.6 <snip> auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: mm_request_send entering: type 23 auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: mm_sshkey_verify entering [preauth] auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: mm_request_send entering: type 24 [preauth] auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: mm_sshkey_verify: waiting for MONITOR_ANS_KEYVERIFY [preauth] auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: mm_request_receive_expect entering: type 25 [preauth] auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: mm_request_receive entering [preauth] auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: mm_request_receive entering auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: monitor_read: checking request 24 *auth.debug: Apr 26 18:48:21 vm1 sshd[2442]: debug3: mm_answer_keyverify: publickey 0x7f4120b43cd0 signature unverified* Thanks, Manju _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev