No thoughts? Thanks in advance!
________________________________ From: John Dhabolt <[email protected]> To: "[email protected]" <[email protected]> Sent: Monday, October 15, 2012 4:53 PM Subject: AES Encryption Example? Hi, I've pretty much exhausted my Google search skills in trying to find any posts covering AES encryption with PDFBox. I'm looking for the simplest implementation. It appears I need a StandardSecurityHandler or PublicKeySecurityHandler and apparently the StandardProtectionPolicy (which is well documented in the Encrypt class), but I keep trying to bang them together and nothing useful happens. In one of my clearly naive attempts I do something like this (the only thing that isn't based on the Encrypt example is the attempt to use the StandardSecurityHandler...obviously incorrectly): StandardSecurityHandler ssh = new StandardSecurityHandler(spp); ssh.setKeyLength(KEY_LENGTH); ssh.setAES(true); AccessPermission ap = new AccessPermission(); // set various permissions StandardProtectionPolicy spp = new StandardProtectionPolicy(OWNER_PASSWORD, null, ap); spp.setEncryptionKeyLength(KEY_LENGTH); document.setSecurityHandler(ssh); // Seems to be the way to set a security handler document.protect(spp); // Completely ignores AES (I get the default 128-bit RC4 encryption) As noted in the comments above, this correctly locks the PDF but sets 128-bit RC4 encryption as opposed to AES. Thanks in advance for any suggestions. John
