Why does SSL handshake give 'Could not generate DH keypair' exception?

Question

When I make an SSL connection with some IRC servers (but not others - presumably due to the server\'s preferred encryption method) I get the following exception:

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Answer 1

I've got this error with Bamboo 5.7 + Gradle project + Apache. Gradle tried to get some dependencies from one of our servers via SSL.

Solution:

1. Generate DH Param:

with OpenSSL:

openssl dhparam 1024

example output:

-----BEGIN DH PARAMETERS-----
MIGHfoGBALxpfMrDpImEuPlhopxYX4L2CFqQov+FomjKyHJrzj/EkTP0T3oAkjnS
oCGh6p07kwSLS8WCtYJn1GzItiZ05LoAzPs7T3ST2dWrEYFg/dldt+arifj6oWo+
vctDyDqIjlevUE+vyR9MF6B+Rfm4Zs8VGkxmsgXuz0gp/9lmftY7AgEC
-----END DH PARAMETERS-----

2. Append output to certificate file (for Apache - SSLCertificateFile param)

3. Restart apache

4. Restart Bamboo

5. Try to build project again