[CentOS] recommendations for encrypting files?

Sat Nov 19 20:39:44 UTC 2011
Eero Volotinen <eero.volotinen at iki.fi>

2011/11/19 Helmut Drodofsky <drodofsky at internet-xs.de>:
> I would like to encrypt and decrypt Files sent as attachment in Linux, Mac and Windows Systems
>
> Recommendations?

gpg with public key encryption.

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Eer