Hi folks,
(I am not subscribed to the list, so please reply directly)
I am trying to use openssl on Solaris to checksum files coming from an IBM mainframe. The only function that exists on both platforms is the MDC2 checksum.
I have noticed a couple of discrepancies between mainframe support for MDC2 and OpenSSL's support:
* Mainframe supports MDC2 with various keys (The documentation notes that the default key is the same as the one used by OpenSSL) - Openssl has a single key hardcoded.
* The Mainframe MDC2 blocksize is 16, OpenSSL's blocksize is 8 bytes.
Does anyone know of a definitive standard that documents the MDC2 checksum algorithm, and the associated conventions i.e. block size, etc?
I have searched the Web, and been unable to find anything.
If I want to change the MDC2 blocksize, should I do it only in my local copy, or should I contrib a patch to the original source?
Thanks for your help.
Rogan
(using a colleagues mailbox)
