On Thu, 22 Jun 2017 22:25:21 +0000, Frank Swarbrick <[email protected]> wrote:
> We have a requirement to store some information in an encrypted ASCII file > (that is, it was ASCII prior to being encrypted) > on a distributed platform over which we have no control. We also have a > requirement that we make sure that no data is > lost during transmission. Do you have a requirement to create an encrypted ASCII file? Or do you have a requirement to decrypt and save (store) a clear-text EBCDIC version of such a file? Don't overthink the solution. Just remember that ASCII text files are streams with CRLFs in them, which means the CRLFs are part of the encrypted data. You don't encrypt the LINES of a file and then append CRLFs. (Tempting in EBCDIC systems.) Is the encryption solely for the purpose of file transmission? Or does it need to be encrypted at rest for other reasons? I would be tempted to just use TLS-enabled FTP. TLS ensures that the data is not altered in transmission, so the MD5 is superfluous for that purpose. Alan Altmark IBM Lab Services z/VM and Linux ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
