SecureCRT Public Key (Identity) to Putty Public Key (ppk File)

1. open SecureCRT, click menu SecureCRT -> Tools -> Concert Private Key to OpenSSH Format
2. select your Identity file
3. enter your Passphrase and save
4. you can get two openSSH files (*** and ***.pub)
5. open puttygen, click menu Conversions -> Import Key
6. select your *** file
7. enter your Passphrase
8. click Save private Key
9. you can get the Putty Public Key (***.ppk )