How can I create 8192bit RSA keys?

Robert's Avatar


15 Apr, 2015 02:57 PM

GPG Suite b6

My company does in fact generate 8192 bit RSA keys for use. The systems we use have no issue with generating them. The current beta does not support 8192 bit keys - and defaults back to 4096 bit. Is an older (stable) GPGTools version available that allows for 8192 bit keys?

  1. Support Staff 1 Posted by Steve on 25 Jun, 2015 06:49 PM

    Steve's Avatar

    Hi Robert,

    please excuse the slow response time.

    To generate very large keys like 8192bit keys, compile MacGPG2 with --enable-large-secmem. After that you can use "--enable-large-rsa" when generating a new key.

    We follow the gnupg defaults. If you want 8k keys to be available by default, please request that feature on the gnupg users mailing list.

    All the best,

  2. 2 Posted by rcdagency on 25 Jun, 2015 10:18 PM

    rcdagency's Avatar

    Thank you Steve!

    I will get to it....


  3. 3 Posted by Dan on 29 Sep, 2015 09:00 PM

    Dan's Avatar

    How can i generate keys up to 8192 bit using GPG4WIN?

  4. Support Staff 4 Posted by Steve on 02 Oct, 2015 11:08 PM

    Steve's Avatar

    Dan I suggest contacting gpg4win in that case:

    GPGTools develops GPG Suite which runs on OS X only.


  5. Steve closed this discussion on 02 Oct, 2015 11:08 PM.

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