Client
: Add a line for 
SQLNET.ENCRYPTION_CLIENT=
 and choose one of the following values (for example, 
SQLNET.ENCRYPTION_CLIENT=accepted
):
SQLNET.ENCRYPTION_CLIENT=	Description:
accepted	This is the default value.  Accepted  tells the server that the client accepts secure net traffic if requested.
rejected	The client rejects any connection requiring secure net traffic.
requested	The security service is activated if the server requests or requires it.
required	The client accepts the connection only if the server accepts secure traffic.
 
Server
: Add one or more server lines (different combinations of lines and values are acceptable). For example, you might add:
  SQLNET.ENCRYPTION_SERVER=required
  SQLNET.ENCRYPTION_TYPES_SERVER=<encryption algorithm>
The following tested encryption algorithms are supported by Oracle:
 
AES256
: AES with a 256-bit key size
 
RC4_256
: RSA RC4 with a 256-bit key size
 
AES192
: AES with a 192-bit key size
 
3DES168
: Three-key 3DES (with an effective key size of 168 bit)
 
AES128
: AES with a 128-bit key size
 
RCA_128
: RSA RC4 with a 128-bit key size
 
3DES112
: Two-key 3DES (with an effective key size of 112 bit)
 
RC4_56
: RSA RC4 with a 56-bit key size
 
DES
: DES (with an effective key size of 56 bit)
 
RC4_40
: RSA RC4 with a 40-bit key size
Verify the encryption status meets your requirements. The encryption status derived from your client and server parameter values is summarized in the following table:

 

Transparent Data Encryption (TDE) protects information in the database from media theft by encrypting sensitive data on disk.
Data encryption and integrity to ensure the privacy of communications over any protocol into the Oracle database.
Strong authentication services such as Kerberos, PKI, Biometrics, and RADIUS-compliant smart cards.

Set the 
EncryptionLevel
 property in the JDBC URL to 
accepted
, 
requested
, or 
required
 
Set the 
EncryptionTypes
 property in the JDBC URL to one or multiple algorithms. Oracle Advanced Security provides the Advanced Encryption Standard (AES), DES, 3DES, and RC4 symmetric cryptosystems for protecting the confidentiality of network traffic.
For example, your JDBC URL string in 
properties.xml
 as seen through CSA might look like this (we broke the long string onto multiple lines to avoid scrolling):

   url="jdbc:clarity:oracle://databaseserver1.ca.com:1521;ServiceName=clrtydev;
   BatchPerformanceWorkaround=true;InsensitiveResultSetBufferSize=0;ServerType=dedicated;
   supportLinks=true;EncryptionLevel=requested;EncryptionTypes=AES"

jdbc:clarity:oracle://server:1521;ServiceName=serviceTNS;BatchPerformanceWorkaround=true;
InsensitiveResultSetBufferSize=0;ServerType=dedicated;supportLinks=true;DataIntegrityLevel=required

jdbc:clarity:oracle://server:1521;ServiceName=serviceTNS;BatchPerformanceWorkaround=true;
InsensitiveResultSetBufferSize=0;ServerType=dedicated;supportLinks=true;DataIntegrityLevel=required;
EncryptionLevel=required;EncryptionTypes=(RC4_256,AES192,3DES112);

Separate multiple values with commas and enclose the entire set of values in parentheses.
If multiple values are specified and Oracle Advanced Security encryption is enabled using the EncryptionLevel property, the database server determines which algorithm is used based on how it is configured.
If unspecified, a list of all possible values is sent to the database server. The database server determines which algorithm is used based on how it is configured.
Consult your Oracle administrator to verify the data encryption settings of your Oracle server.