Issue 668 oasis decryption

[paulo-ocean]

Fixes #668

Changes proposed in this PR:

• handles template 4 (confidential EVM) download/decryption

[jamiehewitt15]

Is there a reason you didn't add any tests? It would make it easier to check that it's working, even if they are on the live network and not included in the CI (like Maria did in her PR)

[paulo-ocean]

Is there a reason you didn't add any tests? It would make it easier to check that it's working, even if they are on the live network and not included in the CI (like Maria did in her PR)

we already have tests for the download, imo, we don't need a specific just to do an extra smart contract function call, and this is a live network so it will not be maintainable. I guess the same reason we don't have a dedicated test for all the EVMs we support :-) Also. If they are not part of the CI, what are they good for? we can just use the CLI for ex:

[paulo-ocean]

Is there a reason you didn't add any tests? It would make it easier to check that it's working, even if they are on the live network and not included in the CI (like Maria did in her PR)

we already have tests for the download, imo, we don't need a specific just to do an extra smart contract function call, and this is a live network so it will not be maintainable. I guess the same reason we don't have a dedicated test for all the EVMs we support :-) Also. If they are not part of the CI, what are they good for? we can just use the CLI for ex:

added a couple of unit tests for aux functions

[jamiehewitt15]

Looks good to me