RCurl errors when fetching ssl endpoint

Question

RCurl is giving me an error:1411809D:SSL routines:SSL_CHECK_SERVERHELLO_TLSEXT:tls invalid ecpointformat list when I try to connect via SSL to an https (not public, unfortunately) endpoint to fetch some JSON.

I've put ssl.verifypeer = FALSE, and I don't know how to adjust the cipher list to avoid ECC suites.

How do I fix this? It works fine in the browser.

The issue is described here. Try setting sslversion=3L in your RCurl call with ssl.verifypeer=TRUE. — Thomas
– Thomas, Commented Nov 18, 2013 at 13:16
This fixed the ssl errors, thanks. There's a further issue with my calls in stackoverflow.com/questions/20051258/… that seems to be intermittently messing with ssl as well. — nimish
– nimish, Commented Nov 18, 2013 at 15:25
Okay, I've posted it as an answer then (and already responded to your other question). — Thomas
– Thomas, Commented Nov 18, 2013 at 15:26

Community · Accepted Answer · 2017-05-23 12:04:02Z

2

The issue is described here for python. Setting sslversion=3L in your RCurl call with ssl.verifypeer=TRUE should resolve the problem.

edited May 23, 2017 at 12:04

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answered Nov 18, 2013 at 15:26

Thomas

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