On 11.11.19 16:42, Wendell Nichols via openssl-users wrote:
Is there anyone on this group with experience with ebcdic platforms, specifically zOS? I have built 1.1.1d on zOS and connections to my server work for firefox 60 but not newer versions. I don't know exactly where the cut off is or what they changed but current versions get an HMAC error. I strongly suspect that it is keying the hmac with some combination of inputs that include an improperly translated text string, but I don't know for sure. Its quite hard to track down when you don't have a debugger.
The error message:
An error occurred during a connection to cafe.na.tibco.com:1802. SSL received a record with an incorrect Message Authentication Code. Error code: SSL_ERROR_BAD_MAC_READ
If anyone can suggest an approach to figuring this out I'd be grateful.
Wendell Nichols
Incidentally, I just merged a pull request that fixed a misspelled EBCDIC string to master and 1.1.1.
https://github.com/openssl/openssl/pull/10396#issuecomment-552506972
But I have no idea whether it is related to your problem. Nevertheless, you might want to retry with the current tip of the OpenSSL_1_1_1-stable branch.
Regards,
Matthias
