Re: Encryption of a file on the IFS

On 31/03/2008, at 6:44 PM, Jones Simon wrote:

I have been asked to supply data to one of our business suppliers, the
data is in xml format and must be encrypted. I have been looking at AES
encryption, and have been able to encrypt field level data no problem
(well, relatively speaking). However the data I create is copied to an
IFS folder, and it is this which I really need to encrypt. I have found
a number of tools to do this, but by and large they are expensive, and
for a one-off project such as this are difficult to justify. Is it
possible to do this encryption myself, if so I'd be grateful if anyone
could point me towards the areas which I should be looking at.

Although AES is the preferred option of our partner, any other
encryption would also be considered

IFS APIs to read the original data and write the encrypted data. See Unix-type APIs in the Information Centre. You'll need at least open (), read(), write(), and close(). You'll find examples in the archives and a tutorial at Scott Klement's web site.

Cryptographic APIs to perform the encryption. You'll need at least Qc3EncryptData(). Carsten Flensburg has written a series of articles on using these APIs at System i Network web site.

Regards,
Simon Coulter.
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