ERR_SSL_VERSION_OR_CIPHER_MISMATCH with signed certificate in Tomcat 8.5

Christopher Marlowe

4/5/23, 9:38 AM

I have a tomcat server for which I needed a signed certificate. I generated a key using

openssl req -new -newkey rsa:2048 -nodes -out sample_bfc_org.csr -keyout sample_bfc_org.key -subj "/C=BD/ST=Dhaka/L=Dhaka/O=Bangladesh Finance Corporatiobn/OU=IT/CN=sample.bfc.org"

and then generated a CSR and sent it to my company admin.

They gave me back a CER file with the signed certificate and certificate chain.

But when I import the certificate file in tomcat, I am getting the following error:

This site can’t provide a secure connectionehls.bhbfc.org uses an unsupported protocol.
ERR_SSL_VERSION_OR_CIPHER_MISMATCH
Unsupported protocol
The client and server don't support a common SSL protocol version or cipher suite.

My tomcat server.xml configuration is as follows:

<Connector executor="tomcatThreadPool" 
port="443"
protocol="org.apache.coyote.http11.Http11AprProtocol"
connectionTimeout="20000" 
acceptCount="100"
maxKeepAliveRequests="15"
SSLCACertificateFile="${catalina.base}/SSL/DigiCertCA.crt"
SSLCertificateFile="${catalina.base}/SSL/sample_bfc_org.crt"
SSLCertificateKeyFile="${catalina.base}/SSL/sample_bfc_org.key"
SSLPassword="123456"
SSLEnabled="true"
scheme="https"
secure="true" 
sslProtocol="TLS"
 />

But still, the error exists. What can I do to solve the following error?

This site can’t provide a secure connectionehls.bhbfc.org uses an unsupported protocol.
ERR_SSL_VERSION_OR_CIPHER_MISMATCH
Unsupported protocol
The client and server don't support a common SSL protocol version or cipher suite.

0 + 0

tomcat

openssl

ssl-certificate-errors

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: ERR_SSL_VERSION_OR_CIPHER_MISMATCH with signed certificate in Tomcat 8.5

TH: ERR_SSL_VERSION_OR_CIPHER_MISMATCH พร้อมใบรับรองที่ลงนามแล้วใน Tomcat 8.5

RO: ERR_SSL_VERSION_OR_CIPHER_MISMATCH cu certificat semnat în Tomcat 8.5

RU: ERR_SSL_VERSION_OR_CIPHER_MISMATCH с подписанным сертификатом в Tomcat 8.5

VI: ERR_SSL_VERSION_OR_CIPHER_MISMATCH với chứng chỉ đã ký trong Tomcat 8.5

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