Awesome RSA and DSA key generation utility for Windows PC

PuTTYgen (64-bit)

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PuTTYgen 0.72 (64-bit)

  -  683.38 KB  -  Open Source
Free Download

Security Status

  • Latest Version

    PuTTYgen 0.81 (64-bit)

  • Operating System

    Windows XP64 / Vista64 / Windows 7 64 / Windows 8 64 / Windows 10 64

  • User Rating

    Click to vote

  • Author / Product

    Simon Tatham / External Link

  • Filename

    puttygen.exe

  • MD5 Checksum

    f4162c36a8e0ed3bb8da2c1b89cf11d0

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of PuTTYgen 0.72 (64-bit).


For those interested in downloading the most recent release of PuTTYgen (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download PuTTYgen 0.72 (64-bit)

  • PuTTYgen 0.72 (64-bit) Screenshots

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    PuTTYgen 0.72 (64-bit) Screenshot 1
  • PuTTYgen 0.72 (64-bit) Screenshot 2
  • PuTTYgen 0.72 (64-bit) Screenshot 3
  • PuTTYgen 0.72 (64-bit) Screenshot 4

What's new in this version:

Security fixes found by the EU-funded bug bounty:
- two separate vulnerabilities affecting the obsolete SSH-1 protocol, both available before host key checking
- a vulnerability in all the SSH client tools (PuTTY, Plink, PSFTP and PSCP) if a malicious program can impersonate Pageant
- Bug fix: crash in GSSAPI / Kerberos key exchange affecting third-party GSSAPI providers on Windows (such as MIT Kerberos for Windows)
- Bug fix: crash in GSSAPI / Kerberos key exchange triggered if the server provided an ordinary SSH host key as part of the exchange
- Bug fix: trust sigils were never turned off in SSH-1 or Rlogin
- Bug fix: trust sigils were never turned back on if you used Restart Session
- Bug fix: PSCP in SCP download mode could create files with a spurious newline at the end of their names
- Bug fix: PSCP in SCP download mode with the -p option would generate spurious complaints about illegal file renaming
- Bug fix: the initial instruction message was never printed during SSH keyboard-interactive authentication
- Bug fix: pasting very long lines through connection sharing could crash the downstream PuTTY window
- Bug fix: in keyboard layouts with a ',' key on the numeric keypad (e.g. German), Windows PuTTY would generate '.' instead for that key
- Bug fix: PuTTYgen could generate RSA keys with a modulus one bit shorter than requested

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