SEC_E_ALGORITHM_MISMATCH (0x80090331) - The client and server cannot communicate, because they d not possess a common algorithm

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I am using a python client to connect to C++ server over https. However when a client tries to download some file from the server I get a error reported by the server as "The client and server cannot communicate, because they do not possess a common algorithm."

The client and the server are on the same machine. The server uses the following command to create a pem file:

openssl.exe"  req -new -newkey rsa:1024 -days 9999 -nodes -x509 \
    -keyout etc\\filestore.pem -out etc\\filestore.pem

What have I tried ?

  1. I have imported the pem file into the certificates folder
  2. I enabled SSL2,SSL3,TL1.0,TLS 1.1,TLS1.2 in the registry

There is a url that gets generated in the server. I pasted this url in the chrome browser. Where I got a warning like:

enter image description here

encryption
openssl
ssl-certificate
asked on Stack Overflow Dec 23, 2014 by sameer karjatkar • edited Dec 29, 2014 by jww

2 Answers

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I met this problem today, too. I have resolved it. It's because your client does not support the SSL3.0 algorithms your server uses. Just change your serverside code from:

SSLv3_server_method()

to:

SSLv23_server_method()
answered on Stack Overflow Jan 12, 2015 by swigger
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I did resolve the issue . SSLScan tool came to my rescue . SSLScan --no-failed port> gave me the list of supported ciphers that the server supported . On the client side I am using curl library calls to download the file . What I did was 

setOpt(new curlpp::options::SslCipherList("AES256-SHA"));

which set the cipher that my server was supporting .

answered on Stack Overflow Jan 13, 2015 by sameer karjatkar

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