February
8th,
2015
I was playing with Docker yesterday and needed to convert a key that I had been using in Windows with Putty for a while. First attempt with puttygen didn’t work at all, then I found this Stack Overflow post, copying the details here so I know where to find it next time :)
To install the required tools, use
Ubuntu: sudo apt-get install putty-tools
OSX: brew install putty
After the requried tools have been installed, use the following 2 commands to extract the private and public portion of the key:
puttygen id_dsa.ppk -O private-openssh -o id_dsa
puttygen id_dsa.ppk -O public-openssh -o id_dsa.pub