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Create a PEM from a PPK file [duplicate]

So there are plenty of tutorials on how to convert a PEM to a PPK using puttyGen. However my issue is that my windows machine had the only PEM copy and I converted it into a PPK and deleted it. Now I need to figure out how to convert a PPK into a PEM so that my mac can ssh into the server. I still have access to the server so I could also just make a new key if I had to, anyone know how to convert PPK to PEM?

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CMOS Avatar asked Oct 22 '15 03:10

CMOS


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Can we convert PPK file to PEM?

Windows - convert a .ppk file to a .pem file For Actions, choose Load, and then navigate to your . ppk file. Choose the . ppk file, and then choose Open.

Is PEM same as PPK?

PEM (Privacy Enhanced Mail) is a base64 container format for encoding keys and certificates. . pem download from AWS when you created your key-pair. This is only a one time download and you cannot download it again. PPK(Putty Private Key) is a windows ssh client, it does not support .


4 Answers

  1. Install PuttyTools

    apt-get install putty-tools
    
  2. Generate a pem file form the ppk

    puttygen server.ppk -O private-openssh -o server.pem  
    

The file server.pem file will be saved on same location

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Emizen Tech Avatar answered Oct 03 '22 19:10

Emizen Tech


If you're on a Mac and you've previously installed Homebrew, from Terminal:

$ brew install putty
$ puttygen server.ppk -O private-openssh -o server.pem

The first command was suggested in this comment and the second from Emizen Tech's answer.

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Kenny Evitt Avatar answered Oct 03 '22 19:10

Kenny Evitt


Try this to install putty-tools

sudo apt install putty-tools
puttygen key.ppk -O private-openssh -o key.pem
ssh -i ~/key.pem {user}@{ip}
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Jayanta Mukherjee Avatar answered Oct 03 '22 19:10

Jayanta Mukherjee


First, install PuTTY for Mac using

brew install putty

Then, use the following command to convert the .ppk format private key to a standard PEM format private key:

puttygen privatekey.ppk -O private-openssh -o privatekey.pem

Make sure permissions on the private key file are set properly. It should only be readable by the user that owns it.

chmod go-rw privatekey.pem

You can now use the key for logins from scripts and command line with:

ssh -i privatekey.pem user@hostname
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Salman Iftikhar Avatar answered Oct 03 '22 18:10

Salman Iftikhar