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PuTTYgen private key
File type: Encoded and encrypted file
A pkk file extension is related to the PuTTYgen and used for its private key files.
File type category:
Encoded and encrypted file
Date updated: November 3, 2016
The pkk file extension is associated with the PuTTYgen, which is a part of the PuTTY. The PuTTYgen is a RSA and DSA key generation utility.
The pkk file contains private key.
Use PuTTY to work with *.pkk files.