I'm working an application that exports some data into a file and uploads it to a remote server - the data is later read by a simple php program. I'm being asked to add encryption to this file transfer and I'm wondering if anyone has a favorite encryption  component that they like. I'm told I can use AES or Blowfish ciphers. I'm fiddling with one called CryptoPress but I can't seem to successfully encode using that component and decode using the php MCRYPT commands.  Everything works dandy if I encrypt and decrypt locally on both ends - but as soon as I try to encrypt with my delphi component and then decrypt with the MCRYPT_DECRYPT  command it just doens't seem to do it. I know it can be my setup but I thought I would ask for a recommendation on a component to check out. I can do this either in Delphi 5 or Delphi 2007

Thanks as always,

Jeff

Jeff,

> I'm working an application that exports some data into a file and uploads it to a remote server - the data is later read by a simple php program. I'm being asked to add encryption to this file transfer and I'm wondering if anyone has a favorite encryption  component that they like. I'm told I can use AES or Blowfish ciphers. I'm fiddling with one called CryptoPress but I can't seem to successfully encode using that component and decode using the php MCRYPT commands.  Everything works dandy if I encrypt and decrypt locally on both ends - but as soon as I try to encrypt with my delphi component and then decrypt with the MCRYPT_DECRYPT  command it just doens't seem to do it. I know it can be my setup but I thought I would ask for a recommendation on a component to check out. I can do this either in Delphi 5 or Delphi 2007

Have a look here:

http://www.cityinthesky.co.uk/opensource/dcpcrypt

I am using this library for exactly the same purpose as you do.

Regards Uli

+1 for Uli recommended DPCrypt.

I've also used TurboPower LockBox in the past (http://sourceforge.net/projects/tplockbox/)

Raul

I still use LockBox quite often for encryption/decryption/hashing.  I've
modified the packages to work in Delphi 2005-2010 without any problems.
Great package with good documentation.

David Cornelius
Cornelius Concepts

Thanks everyone - this helps me a bunch!!