nucypher / pyUmbral

NuCypher's reference implementation of Umbral (threshold proxy re-encryption) using OpenSSL and Cryptography.io

Home Page:https://pyumbral.readthedocs.io

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Failed to install

dominic-healid opened this issue · comments

Want to learn pyUmbral, I'm unable to install it. Can someone point me how to properly instaly umbral?

Here's the message I get every time i tried to install.

Collecting umbral
Could not fetch URL https://pypi.python.org/simple/umbral/: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:719) - skipping
Could not find a version that satisfies the requirement umbral (from versions: )
No matching distribution found for umbral

This is not related to pyUmbral, but probably to some problem in your system that prevents pip to install anything. You should be sure that pip works.

In this case, it seems your system still uses TLSv1, which is not compatible anymore with pip. Perhaps this can help:
https://pyfound.blogspot.com/2017/01/time-to-upgrade-your-python-tls-v12.html