Hello, 

I'm having an issue with setting up SSL encrypted connections to an Oracle 
database. 

I looked up on many websites and places and got the impression that either 
people abandon setting up the encryption or implemented the connection in code 
rather than through the jndi context in Tomcat itself. 

Tomcat 8.5.34 
JDK 1.8.0_171 
RedHat 7.4 (Selinux permissive) 
OracleDB 12.2.0.1.0 

I've written a simple Java application which just connects to the database 
using TCPS and makes a simple query. 
This works. 

java -D oracle.net.tns_admin ="./oracle_wallets/" -D oracle.net.wallet_location 
="(SOURCE=(METHOD=FILE) (METHOD_DATA = (DIRECTORY=./oracle_wallets)))" -cp ./: 
./lib/ ojdbc8.jar :./lib/ oraclepki.jar DataSourceSample 

I'm using the official ojdbc8.jar from Oracle appropriate for the version of 
Java and the Oracle database. 

Because Oracle Wallets is an invention of Oracle itself, I added the 
appropriate security provider in java.security: 
security.provider.4=oracle.security.pki.OraclePKIProvider ( loaded before 
com.sun.net.ssl.internal.ssl.Provider ) so it gets loaded before the default 
PKCS implementation in Java. 

cwallet.sso cwallet.sso.lck ewallet.p12 ewallet.p12.lck sqlnet.ora tnsnames.ora 
are all placed inside the ./oracle_wallets. 

As said before, the little Java app that I wrote is able to open the wallets 
and connect to the database: 

AArray = [B@6328d34a 
AArray = [B@145eaa29 
AArray = [B@15bb6bea 
.... 
Driver Name: Oracle JDBC driver 
Driver Version: 12.2.0.1.0 
Default Row Prefetch Value is: 20 
Database Username is: MY_USER 
.... 
82062920015 SomeResults1 
87093009324 SomeResults2 
74031825702 SomeResults3 
.... 


I translated this to Tomcat in the following way: 

I placed the ojdbc8.jar and oraclepki.jar in the libs folder of Catalina. 

I added the Java options in bin/setenv.sh: 

export CATALINA_OPTS="$CATALINA_OPTS -Doracle.net.tns_admin=<full 
path>/oracle_wallets/" 
export CATALINA_OPTS="$CATALINA_OPTS 
-Doracle.net.wallet_location='(SOURCE=(METHOD=FILE) (METHOD_DATA = (DIRECTORY= 
<full path> /oracle_wallets)))'" 

The entries in the context.xml file look like this: 

<Resource name="jdbc/dominoDataSource" 
auth="Container" 
type="javax.sql.DataSource" 
username="MY_USER" 
password="*************" 
url="jdbc:oracle:thin:@MY_DATABASE" 
driverClassName="oracle.jdbc.OracleDriver" 
timeBetweenEvictionRunsMillis="120000" 
testOnBorrow="True" 
logAbandoned="True" 
removeAbandonedTimeout="3600" 
maxIdle="20" 
initialSize="32" 
removeAbandonedOnBorrow="True" 
maxTotal="256" 
validationQuery="select 1 from dual" 
removeAbandonedOnMaintenance="True" 
maxWaitMillis="300000" 
/> 

I can confirm that the rights on the filesystem for the wallets are permissive 
enough for Tomcat to read them. 
Tomcat is able to connect to the database. 

But for some reason it's as if it's unable to read the wallets. 


Caused by: oracle.net.ns.NetException: The Network Adapter could not establish 
the connection 
at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:523) 
at 
oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:521) 
at oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:660) 
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:286) 
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1438) 
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:518) 
... 68 more 
Caused by: oracle.net.ns.NetException: Unable to initialize ssl context. 
at 
oracle.net.nt.CustomSSLSocketFactory.getSSLSocketEngine(CustomSSLSocketFactory.java:564)
 
at oracle.net.nt.TcpsNTAdapter.connect(TcpsNTAdapter.java:143) 
at oracle.net.nt.ConnOption.connect(ConnOption.java:161) 
at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:470) 
... 73 more 
Caused by: oracle.net.ns.NetException: Unable to initialize the key store. 
at 
oracle.net.nt.CustomSSLSocketFactory.getKeyManagerArray(CustomSSLSocketFactory.java:642)
 
at 
oracle.net.nt.CustomSSLSocketFactory.getSSLSocketEngine(CustomSSLSocketFactory.java:547)
 
... 76 more 
Caused by: java.security.KeyStoreException: SSO not found 
at java.security.KeyStore.getInstance(KeyStore.java:851) 
at 
oracle.net.nt.CustomSSLSocketFactory.getKeyManagerArray(CustomSSLSocketFactory.java:628)
 
... 77 more 
Caused by: java.security.NoSuchAlgorithmException: SSO KeyStore not available 
at sun.security.jca.GetInstance.getInstance(GetInstance.java:159) 
at java.security.Security.getImpl(Security.java:695) 
at java.security.KeyStore.getInstance(KeyStore.java:848) 
... 78 more 

I tried checking if it was maybe linked to the application by removing it, but 
the same result. 

Would be nice if anyone has tried this similarly with or without succes. 


Regards, 
Christophe 

-- 
-- 
Christophe Vanlancker <christophe.vanlanc...@inuits.eu> 
+32 (494) 232277 | Linux & Open-Source consultant - Inuits.eu 

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