I have generated the keys in Ubuntu 14.04 system using the following commands to use with ssh. ssh-keygen -t rsa -b 2048 openssl rsa -in id_rsa -outform pem > pk_rsa.pem openssl rsa -in pk_rsa.pem -pubout -out my_key.pemI have copied the my_key.pem to my local which is OSX. Trying to ssh into the Ubuntu using the below command ssh -v -i ./my_key.pem ubuntu@192.168.113.137  OpenSSH_7.4p1, LibreSSL 2.5.0 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Connecting to 192.168.113.137 [192.168.113.137] port 22. debug1: Connection established. debug1: key_load_public: No such file or directory  debug1: identity file ./ubu14.pem type -1 debug1: key_load_public: No such file or directory debug1: identity file ./ubu14.pem-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_7.4 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8 debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8 pat OpenSSH_6.6.1* compat 0x04000000 debug1: Authenticating to 192.168.113.137:22 as 'ubuntu' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256@libssh.org debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ecdsa-sha2-nistp256 SHA256:KDokJiZiQ9ZflT5Jm5B8krQ8XgsEEgUjQjg+h6C4Gqo debug1: Host '192.168.113.137' is known and matches the ECDSA host key. debug1: Found key in /Users/macdev/.ssh/known_hosts:11 debug1: rekey after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey after 134217728 blocks debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Trying private key: ./my_key.pem Enter passphrase for key './my_key.pem':  debug1: Next authentication method: password mahesh@192.168.113.137's password: Is there way to fix this issue.
SSH asking me for passphrase which doesn't have any passphrase
ssh;ssh keygen
You are conflating two different technologies, openssh and openssl.  It appears you need only the former.  As you have already created an ssh key pair, you just need to copy the public key to the server you intend to ssh to.  The correct way to do this is:$ ssh-copy-id username@<server-ip>Replace username and <server-ip> with the user and IP address of your server.