I have tracked the problem down to this revision that was applied to boto on July 6th, 2010:
https://github.com/boto/boto/commit/6760075073c34d6dddb7e13b80dfa8d09f0f4f79 If I apply this same diff to boto 1.9b, the signature problem goes away. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/688773 Title: euca2ools give 'SignatureDoesNotMatch' error -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs