I've setup a Spring Framework 5 project working very well so far. Needed to enable HTTPS for some functionality so followed a tutorial. Currently generated the certificate and key on the server with the following command:
keytool -genkeypair -alias tomcat -storetype PKCS12 -keyalg RSA -keysize 2048 -keystore keystore.p12 -validity 365000
I've then imported this keystore into my resources folder and used the following properties:
server.ssl.key-store= classpath:keystore.p12
server.ssl.key-store-password= myPassword
server.ssl.key-store-type= PKCS12
server.ssl.key-alias= tomcat
server.port= 8444
I've also setup a redirect from HTTP to HTTPS with the following configuration:
@Bean
public ServletWebServerFactory servletContainer() {
TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory() {
@Override
protected void postProcessContext(Context context) {
SecurityConstraint securityConstraint = new SecurityConstraint();
securityConstraint.setUserConstraint("CONFIDENTIAL");
SecurityCollection collection = new SecurityCollection();
collection.addPattern("/*");
securityConstraint.addCollection(collection);
context.addConstraint(securityConstraint);
}
};
tomcat.addAdditionalTomcatConnectors(redirectConnector());
return tomcat;
}
private Connector redirectConnector() {
Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
connector.setScheme("http");
connector.setPort(8182);
connector.setSecure(false);
connector.setRedirectPort(8444);
return connector;
}
When running locally from my IDE or by running the compiled .jar it works fine. However when I try to run it on my server (a locally running Synology NAS that previously worked fine) I get errors when trying to reach the address (https://192.168.10.10:8444) with the following error on Firefox: SSL_ERROR_NO_CYPHER_OVERLAP
and on chrome ERR_SSL_VERSION_OR_CIPHER_MISMATCH. I've looked for answers but I have not found any solutions that changed the outcome of this problem.
Available JDK CIPHERs on the server:
Default Cipher
SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA
* SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA
SSL_DHE_DSS_WITH_DES_CBC_SHA
SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA
* SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA
SSL_DHE_RSA_WITH_DES_CBC_SHA
SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA
SSL_DH_anon_WITH_3DES_EDE_CBC_SHA
SSL_DH_anon_WITH_DES_CBC_SHA
SSL_RSA_EXPORT_WITH_DES40_CBC_SHA
* SSL_RSA_WITH_3DES_EDE_CBC_SHA
SSL_RSA_WITH_DES_CBC_SHA
SSL_RSA_WITH_NULL_MD5
SSL_RSA_WITH_NULL_SHA
* TLS_DHE_DSS_WITH_AES_128_CBC_SHA
* TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
* TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
* TLS_DHE_DSS_WITH_AES_256_CBC_SHA
* TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
* TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
* TLS_DHE_RSA_WITH_AES_128_CBC_SHA
* TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
* TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
* TLS_DHE_RSA_WITH_AES_256_CBC_SHA
* TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
* TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
TLS_DH_anon_WITH_AES_128_CBC_SHA
TLS_DH_anon_WITH_AES_128_CBC_SHA256
TLS_DH_anon_WITH_AES_128_GCM_SHA256
TLS_DH_anon_WITH_AES_256_CBC_SHA
TLS_DH_anon_WITH_AES_256_CBC_SHA256
TLS_DH_anon_WITH_AES_256_GCM_SHA384
* TLS_EMPTY_RENEGOTIATION_INFO_SCSV
TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5
TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA
TLS_KRB5_WITH_3DES_EDE_CBC_MD5
TLS_KRB5_WITH_3DES_EDE_CBC_SHA
TLS_KRB5_WITH_DES_CBC_MD5
TLS_KRB5_WITH_DES_CBC_SHA
* TLS_RSA_WITH_AES_128_CBC_SHA
* TLS_RSA_WITH_AES_128_CBC_SHA256
* TLS_RSA_WITH_AES_128_GCM_SHA256
* TLS_RSA_WITH_AES_256_CBC_SHA
* TLS_RSA_WITH_AES_256_CBC_SHA256
* TLS_RSA_WITH_AES_256_GCM_SHA384
TLS_RSA_WITH_NULL_SHA256
My openSSL s_client connect output:
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA
Server Temp Key: DH, 1024 bits
---
SSL handshake has read 1601 bytes and written 505 bytes
Verification error: self signed certificate
---
New, TLSv1.2, Cipher is DHE-RSA-AES256-GCM-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.2
Cipher : DHE-RSA-AES256-GCM-SHA384
Session-ID: 5B9B776C430F2AEF917BAE78C14F78CDC6DB2F0ED7284E66EFAF9688319F46B2
Session-ID-ctx:
Master-Key: FBA675AEDE7EB03926991415E6760249DE82E4967EC7A724D04C1D8FEFC2C3CC37DFC84ACD29607CAF88775EBBD6E519
PSK identity: None
PSK identity hint: None
SRP username: None
Start Time: 1536915308
Timeout : 7200 (sec)
Verify return code: 18 (self signed certificate)
Extended master secret: no
---
