Securing Zip Files

Discussion in 'macOS' started by covertsurfer, Apr 21, 2009.

  1. covertsurfer macrumors 6502a

    Jan 18, 2007
    I have some photos I want to send to a Windows user but I want a secure way of doing so. You can add a password to a zip file but I think thats a bit lame. Any suggestions?
  2. L0s7man macrumors 6502

    Feb 26, 2009
    rsa encryption via cryptoloop? easy... on unix ;-) look it up on google. maybe you can do cryptoloop magic on windows via cygwin
  3. r.j.s Moderator emeritus


    Mar 7, 2007
    Why is a password lame? It's cross platform, so you don't have to find an encryption and decryption tool that works on both.
  4. miles01110 macrumors Core


    Jul 24, 2006
    The Ivory Tower (I'm not coming down)
    Put it on a flash drive and hand the flash drive to your friend. Otherwise just use a password.
  5. jc1350 macrumors 6502a

    Feb 4, 2008
    If you want encryption, how about TrueCrypt ( There's a Mac, Linux, and Windows version, it's open-source and free, and containers created with any platform open on any platform.

    Or you could use GPG (openPGP) and encrypt the zip file that way. You can use GPG and PGP in the manner without keypairs (using a password instead - called a symmetric cipher)
  6. ppc750fx macrumors 65816

    Aug 20, 2008
    Because IIRC most forms of password protected ZIP use a weak algorithm...
  7. Jethryn Freyman macrumors 68020

    Jethryn Freyman

    Aug 9, 2007
    Most do, but some of the newer programs use AES (which is secure.)

    I *think* Stuffit uses AES, but I'm not sure.

    OS X has openssl built in, which is a command line tool for encryption. If the other user has a Mac or Linux based computer, or has downloaded openssl in Windows, they'll be able decrypt your file with the necessary password.

    You could also send a small Truecrypt container.

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