How to generate a private key with AES 256-CTR ? I need a private key with CTR as CBC is no longer supported by my client. Please advise
We need to connect to an SFTP instance of client using a .ppk file. This file will contain algo when we generate that using puttygen. Ex:
-----BEGIN RSA PRIVATE KEY----- Proc-Type: 4,ENCRYPTED DEK-Info: AES-128-CBC,6C3E08378BC131E1C99A6A70044DC9D0 -------------
Now the problem is SFTP instance of client is not using CBC any more. They are asking us to generate a ppk file with AES-128-CTR/AES-256-CTR. Is there any other way where i can generate this ? I have tried using powershell with openssh as well. But, still i am getting key with AES-128-CBC.