recreate expired certificates for SSL tests

added a script to regenerate certificates easily in the future (2035!)
restored server8k-key.pem to actually be 8K key, as it was supposed to

mysql-test/lib/generate-ssl-certs.sh

@@ -0,0 +1,31 @@
+#/bin/sh -xe
+
+# simply run me from mysql-test/
+cd std_data/
+
+# boilerplace for "openssl ca" and /etc/ssl/openssl.cnf
+rm -rf demoCA
+mkdir demoCA demoCA/private demoCA/newcerts
+touch demoCA/index.txt
+echo 01 > demoCA/serial
+
+# CA certificate, self-signed
+openssl req -x509 -newkey rsa:2048 -keyout demoCA/private/cakey.pem -out cacert.pem -days 7300 -nodes -subj '/C=SE/ST=Uppsala/L=Uppsala/O=MySQL AB' -text
+
+# server certificate signing request and private key
+openssl req -newkey rsa:1024 -keyout server-key.pem -out demoCA/server-req.pem -days 7300 -nodes -subj '/C=SE/ST=Uppsala/O=MySQL AB/CN=localhost'
+# convert the key to yassl compatible format
+openssl rsa -in server-key.pem -out server-key.pem
+# sign the server certificate with CA certificate
+openssl ca -days 7300 -batch -cert cacert.pem -policy policy_anything -out server-cert.pem -infiles demoCA/server-req.pem
+
+openssl req -newkey rsa:8192 -keyout server8k-key.pem -out demoCA/server8k-req.pem -days 7300 -nodes -subj '/C=SE/ST=Uppsala/O=MySQL AB/CN=server'
+openssl rsa -in server8k-key.pem -out server8k-key.pem
+openssl ca -days 7300 -batch -cert cacert.pem -policy policy_anything -out server8k-cert.pem -infiles demoCA/server8k-req.pem
+
+openssl req -newkey rsa:1024 -keyout client-key.pem -out demoCA/client-req.pem -days 7300 -nodes -subj '/C=SE/ST=Uppsala/O=MySQL AB'
+openssl rsa -in client-key.pem -out client-key.pem
+# if the folloing will require a common name - that's defined in /etc/ssl/openssl.cnf, under policy_anything
+openssl ca -days 7300 -batch -cert cacert.pem -policy policy_anything -out client-cert.pem -infiles demoCA/client-req.pem
+
+rm -rf demoCA