PGP to GPG Key Export
This howto is for people who are using PGP for encrypting files and/or email, and want to be able to use the same set of keys when using GPG. This is a common use case when working on both Windows® and Linux/UN*X platforms. The impetus for this exercise was using Ilohamail to provide a webmail front end. Ilohamail provides basic support for encrypted email, which is to say that it will make system calls to gpg to perform the encryption/decryption.
So you know what versions of software I was using with this process, here they are:
PGP Commercial Version 8.0 for Windows 2000 Pro collette:/home/nscan # rpm --query gpg gpg-1.0.7-82 collette:/home/nscan # uname Linux collette:/home/nscan # uname -r 2.4.21-261-collette
This howto assumes you have installed both PGP for Windows and GPG on Un*x, and have generated a key pair in PGP. If you are interested in the ilohamail portion, then it assumes you have installed that, too, and you know where the data/gpg directory is. NOTE: follow the gpg instructions regarding running gpg setuid to avoid insecure memory access:
gpg: Warning: using insecure memory! gpg: please see http://www.gnupg.org/faq.html for more informationand if using PHP ilohamail also make sure the owner of the webserver process is authorized to use your private key!
1) First step, find your secring and pubring from PGP (they should be called secring.skr and pubring.pkr or something like that ... the extensions are correct but your rings' filenames may be different) and copy them to your linux box, or wherever you have gpg installed. Then, use
gpg --import secring.skrand repeat with your pubring file, pubring.pkr. GPG will automatically detect whether it's a public key or a private key and put it in the right gnupg keyring.
2) Next, is configuring ilohamail. It's actually quite simple. The only problem is, you have to give read access to your keyrings to whatever user the httpd is running on. The way I did this is to use a separate directory, i.e. one inside the ilohamail's root dir ($ILOHAMAIL_ROOT = /var/www/ilohamail/). The directory is in
3) Last, make sure ilohamail is set to use that directory instead of your home directory. The setting is in $ILOHAMAIL_ROOT/conf/conf.inc, at the bottom. Make sure
$GPG_ENABLE=1; $GPG_HOME_STR = "../data/gpg/%u.%h";and the gpg path points to your gpg.
That should be it... whenever you get an email that has the
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Modified February 21, 2016