1

OS: Ubuntu 14.04 Trusty

Openssl version: OpenSSL 1.0.1f 6 Jan 2014

I'm trying to verify a proxy certificate. If I use

openssl verify -CAfile myca.pem mycert.pem

I obtain this error:

error 40 at 0 depth lookup:proxy certificates not allowed, please set the appropriate flag

This is because "mycert.pem" is a proxy certificate, so I have to declare it to openssl.

The right way to do it is to add this command:

-allow_proxy_certs

as written in Openssl verify: Man Page

But when I add -allow_proxy_certs command like this:

openssl verify -allow_proxy_certs -CAfile myca.pem mycert.pem

it prints

usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check] [-no_alt_chains] [-attime timestamp] [-engine e] cert1 cert2 ...

That is the same output I get calling

openssl verify -help

So it seems "-allow_proxy_certs" is missing in my openssl version. How could I add it and use it?

1

After Mikel's comment, I resolved the issue.

1) I've downloaded that openssl version from their github page

2) I've followed the instructions written in INSTALL file (using "./config --prefix=/usr/" instead of "./config")

3) after installation, "openssl version" gave me the correct output with new openssl version. Command "--allow_proxy_cert" can be now used.

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