ASO - checksum fail with JDBC thin client on Windows

Question

I'm trying to configure Oracle Advanced Security for SQL Developer. I'm using SQL Developer 1.5.1 (downloaded with the included JDK). When configuring the connection I select Connection Type: Advanced. My JDBC URL is:
jdbc:oracle:thin:@(description=(address=(protocol=tcp)(host=hostname.com)(port=1234))(connect_data=(service_name=DVLP)(SQLNET.ENCRYPTION_CLIENT=REQUESTED)(SQLNET.ENCRYPTION_TYPES_CLIENT=AES256)(SQLNET.CRYPTO_CHECKSUM_CLIENT=REQUESTED)(SQLNET.CRYPTO_CHECKSUM_TYPES_CLIENT=MD5)))
This works great in Linux. But on a fully patched Windows XP machine when I try to connect I get "Io exception: Checksum fail Vendor code 17002"
Note that this is only a problem with the thin client. If I use the OCI client (jdbc:oracle:oci:@....) it works fine.
Also note that the db to which I'm trying to connect is a 10g database with these sqlnet.ora parameters:
#ASO Encryption
sqlnet.encryption_server=required
sqlnet.encryption_client=required
sqlnet.encryption_types_server=(AES256,3DES168,3DES112)
sqlnet.encryption_types_client=(AES256,3DES168,3DES112)
#ASO Checksum
sqlnet.crypto_checksum_server=requested
sqlnet.crypto_checksum_client=requested
sqlnet.crypto_checksum_types_server = (MD5)
sqlnet.crypto_checksum_types_client = (MD5)
SQLNET.INBOUND_CONNECT_TIMEOUT_LSNR1251=120
# Require clients to be Oracle 10g or higher
SQLNET.ALLOWED_LOGON_VERSION = 10
Has anyone else seen this?
Thanks for your help!

Answer 1

As a test I created a simple Java program to connect to the db. I used the same ojdbc5.jar that is shipped with sql developer. My test program ran fine. So it would seem the problem is SQL Developer specific.
The class:
import java.sql.*;
public class testJDBC_ASO {
public static void main(String[] args) throws SQLException {
DriverManager.registerDriver (new oracle.jdbc.OracleDriver());
Connection conn = DriverManager.getConnection
("jdbc:oracle:thin:@(description=(address=(protocol=tcp)(host=hostname.com)(port=1234))(connect_data=(service_name=DVLP)(SQLNET.ENCRYPTION_CLIENT=REQUESTED)(SQLNET.ENCRYPTION_TYPES_CLIENT=AES256)(SQLNET.CRYPTO_CHECKSUM_CLIENT=REQUESTED)(SQLNET.CRYPTO_CHECKSUM_TYPES_CLIENT=MD5)))",
"username", "password");
Statement stmt = conn.createStatement();
ResultSet rset = stmt.executeQuery("select BANNER from SYS.V_$VERSION");
while (rset.next())
System.out.println (rset.getString(1)); /
stmt.close();
The output:
C:>java -cp ojdbc5.jar;. testJDBC_ASO
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bi
PL/SQL Release 10.2.0.3.0 - Production
CORE 10.2.0.3.0 Production
TNS for Solaris: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
Edited by: RichardJQ on Oct 31, 2008 1:52 PM