Aha. I put off installing the latest SDK while waiting for the next OS release (and planned to do some much needed partition house-keeping at the same time...).

Edit: Current SDK installed... The MorphOS version of my program creates a private key consistent with the Linux version but the receiving address doesn't match. My guess is this is related to ec.h and / or ripemd.h

2nd Edit: Disregard the above... I can't reproduce this error - I should have saved the output I thought was wrong.

[ Edited by ausPPC 12.12.2016 - 07:17 ]