Yuri

> Interesting. It's been a while since I looked at this code. But I think I understand it. The "expire" is a hard deadline but the "lease" is like a...

> The term "lease" is new to me and I like it. Are there similar cache APIs? I don't know. I'm using diskcache because it is very fast, simple and...

Can this be rewritten using asyncio and avoid to use threading? It should be similar to https://github.com/grantjenks/python-diskcache/pull/196.

> I wonder about the use of "diff" for the added cache key to guard against multiple background threads. If the "diff" happened to be short on one call and...

I agree with the pull request

I've updated the request, there were a bug.

The Timestamp is on the BinarySecurityToken, so I think I've to move Timestamp from UserToken to BinarySecurityToken. Still unclear how to encrypt the body and header.

Maybe I have to use sign_envelope? ``` def sign_envelope( envelope, keyfile, certfile, password=None, signature_method=None, digest_method=None, ): """Sign given SOAP envelope with WSSE sig using given key and cert. Sign the...

I've solved the timestamp following #996. Now lets go with the next. The server now answer: {http://schemas.xmlsoap.org/ws/2005/07/securitypolicy}AsymmetricBinding: The signature is not protected. Here the full error: ``` *** zeep.exceptions.Fault: These...

Is this use case unsupported?